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5948E5

Aviation Radar Repairer

E-5 (Sergeant) · Marines

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

The radar section is yours to run, not yours to do. The fastest way to fail as a Sgt section supervisor in the 5948 shop is to be the best bench tech in the section instead of the leader who builds bench techs. The day you are irreplaceable on a fault-isolation procedure is the day your section fails the MALS command inspection while you are at Sergeants Course. Train your Cpls to run the bench. That is the job.

The Honest MOS Read
Sergeant in the 5948 community is the section supervisor rank. The MALS radar shop's operational effectiveness at the section level flows directly through the section supervisor — the LRU queue that moves cleanly, the calibration program that has no expired certs at the command inspection, the GCSS-MC records that the QA officer can audit without a single documentation correction, and the FitRep Section A inputs on the Cpls that the reporting senior signs without a revision request. The battery of things the section chief is watching are all measured at the Sgt level first. The section supervisor's administrative load is the piece the schoolhouse did not prepare you for. You write formal FitReps under MCO 1610.7 on your Cpls — not proficiency and conduct marks, but actual FitReps with Section A narrative, attribute evaluations, and relative value placement that feeds directly into the Sgt's competitiveness at the SSgt centralized selection board. The FitRep cycle at Sgt is the professional writing standard that determines whether your Cpls make SSgt at the first board or at the third. The section chief reviews your Section A before the formal FitRep cycle closes; the reporting senior — your platoon commander or the MALS maintenance officer — builds the attribute evaluations from your input. A Section A that describes observed behavior in action-result-impact terms with specific outcomes is the Section A the reporting senior signs without revision. A Section A that reads 'outstanding Marine with exceptional leadership ability' is the Section A the reporting senior rewrites, and the Sgt whose FitRep inputs are consistently revised does not build a confident mentorship relationship with the reporting senior before the SSgt board cycle. Calibration program management is the section supervisor's administrative fingerprint on the radar shop. Each maintenance action that involves calibrated test equipment generates a calibration-currency dependency — the workcard is only valid if the test equipment was within calibration on the date of the closure. A Sgt who manages the calibration due-date calendar personally, who coordinates with the MALS calibration lab for upcoming expiration dates 30 days out rather than 5 days out, and who has never had a workcard invalidated retroactively by an out-of-calibration finding is the Sgt the MALS QA officer points to as the standard for calibration program management. The RADHAZ safety program ownership at Sgt is qualitatively different from what it was at Cpl. At Cpl you verified your techs' certs before they touched systems. At Sgt you own the program — annual RADHAZ surveys, exposure tracking, safety briefing documentation, HAZMAT storage compliance, and the occupational safety reporting that the MALS safety officer audits. When the MALS safety officer walks into the radar shop for the annual NAVOSH review, the Sgt section supervisor is the one answering his questions and producing the documentation. The section chief is watching whether the Sgt can hold that conversation without referring everything to him. The expeditionary side gets serious at Sgt. On MEU workups and deployments you are the senior 5948 at the expeditionary airfield element, running the AN/TPQ-46/64 and AN/TPS ground-based radar sections under the radar SNCO's guidance. You are briefing the section chief on system status, managing the RADHAZ compliance of a section operating in an uncontrolled field environment, and handling the fault-isolation decisions on ground-based systems that your Cpls are not yet qualified to make independently. The Sgt who returns from a clean MEU deployment comes back with a FitRep narrative the reporting senior can use at the SSgt board without supplemental justification. Your Cpls are your bench. Each of them is on a composite score build toward the Sgt cutting score, a Corporals Course timeline, and a qualification track against NAVMC 3500.14. Monthly counseling entries — what the P&C mark is, why, and what the specific improvement path is — are the baseline. The section supervisor who identifies a Cpl's composite score gap 90 days before the cutting score window and routes him toward the right qualification blocks, the right MCMAP tape test timing, and the right education points strategy is the section supervisor who has Cpls pinning Sgt during his section supervisor tour. The SgtMaj of the MALS knows which section supervisors develop their Cpls.
Career Arc
  • 01Sgt pin-on via composite score cutting score under MCO 1400.32 — section supervisor billet assumption in the MALS radar shop.
  • 02Section supervisor qualification confirmation — section chief formal evaluation, NAVMC 3500.14 collective tasks signed off at the Sgt level.
  • 03First MALS command inspection as section supervisor — QA review of calibration program, RADHAZ documentation, and workcard quality under the MALS CO's review.
  • 04Sergeants Course PME completion — in-residence at the regional Marine Corps NCO academy; schedule 90 days before the course drop.
  • 05MEU workup and deployment as section supervisor — expeditionary airfield element, AN/TPQ-46/64 and AN/TPS ground-based radar section, RADHAZ compliance in the field environment.
  • 06FitRep cycle completion on Cpls — Section A narratives written, reporting senior endorsement, MALS FitRep board relative value placement.
  • 07SSgt centralized selection board window — SNCO board reads FitRep relative value, composite score, PME completion, and conduct record.
Common Screwups
  • ×Missing Sergeants Course through schedule conflict without recovering the slot. The SSgt centralized selection board reads PME completion; a Sgt who is not Sergeants Course-complete when the board meets is visibly disadvantaged in the relative value comparison regardless of FitRep quality. The MALS maintenance officer cannot waive the requirement and the career planner cannot waive it. Schedule in-residence, protect the slot, and if the MEU workup consumes the window, document the conflict through the section chief and have a specific recovery date on the calendar before the MEU embarks.
  • ×NJP, DUI, or fraternization at Sgt. At section supervisor rank, a UCMJ action removes the section supervisor billet, triggers an administrative separation review at the MALS CO level under MARCORSEPMAN, and in most cases forecloses the SSgt centralized selection board. The section you built is someone else's problem.
  • ×FitRep Section A inflation — writing 'outstanding Marine who excels in every area' without observable-behavior support. The reporting senior who rewrites your Section A twice per cycle will not write you a 'must select' narrative when your own SSgt board comes around. The section supervisor whose FitRep inputs on his Cpls are consistently revised by the MALS maintenance officer is the section supervisor who does not make SSgt on the first board.
  • ×Hiding a safety incident — RADHAZ protocol deviation, high-voltage lockout/tagout skip, or calibration-currency violation — from the section chief. The QA officer's post-event review and the MALS safety officer's after-action documentation will surface it. A section supervisor who reports a safety incident honestly, presents the corrective action, and briefed the section chief within 24 hours earns a materially different outcome than one who buries the incident and gets caught. The safety program's integrity is the section supervisor's character reference at the MALS CO's level.
  • ×Signing GCSS-MC labor summaries without auditing techs' entries. Padded hours, missing discrepancy documentation, and incorrect status codes in the maintenance record are fraud-waste-abuse indicators under MCO P4790.2C. The Sgt section supervisor's signature on the labor summary is the institutional endorsement that the entries are accurate. When the MALS audit surfaces a pattern of inflated labor hours in a section, the audit trail starts with the section supervisor's authorization signature.

A Day in the Life

  • 0500Wake. Phone check for the section group chat — any overnight incidents, any emergency maintenance NMC-M from the night crew. If a priority LRU went NMC-M overnight, you already know the bench assignment before PT formation.
  • 0530PT formation. You take section accountability and report to the section chief. The section supervisor who is the last NCO into formation is noted. Report accountability clean; any missing Marine is your problem before it becomes the section chief's.
  • 0545–0700Unit PT. Run at the front of your section. On hump days you carry the weight the section chief expects a Sgt section supervisor to set the standard with. On interval days you run the work set, not the warm-up pace.
  • 0700–0830Hygiene, chow, early shop check. Pull the GCSS-MC queue and the calibration board status before the morning brief. Walk the bench if a priority LRU came in overnight. Any anomaly — a suspicious workcard entry from the night crew, a calibration sticker on a test set that expired last week — gets flagged before the section chief opens his morning brief.
  • 0830Section morning brief. Section chief gives the MALS queue priorities. You brief your Cpls on the section's bench assignments for the day — which LRU, which tech, which standard. Your Cpls brief their junior techs. No Marine in your section should be asking the section chief a question that belongs to you.
  • 0845–0900Section safety check. RADHAZ certs current for every tech working energized systems today. Calibration stickers verified on test equipment being used. Lockout/tagout tags in place on systems de-energized last night. Five minutes prevents a NAVOSH finding.
  • 0900–1130Primary work block. Run the section's maintenance event — you are supervising the bench, coaching the Cpls through fault-isolation decisions, and working the complex LRU assignments that require Sgt-level qualification. AAR after any significant technical decision: what the measurement showed, what the fault-isolation branch decision was, and why. The Cpl who understands the reasoning behind the decision can make that decision independently next time.
  • 1130–1300Chow. The section supervisors eat with the NCO group. The section chief and the senior Sgts are within earshot. The conversations at the table are professional — the section chief is noting which section supervisors are talking shop and which are on their phones.
  • 1300–1500Afternoon work block. Section maintenance continuation, or shift to the administrative cycle: FitRep Section A drafts for Cpls whose cycle is due this quarter, monthly counseling sessions, composite score gap reviews. RADHAZ program documentation update if the annual survey is coming up. Section status board updated for the section chief's afternoon walkthrough.
  • 1500–1600End-of-day close-out. Calibrated equipment accounted for and returned to the tool crib or the bench storage board. GCSS-MC labor entries reviewed for accuracy before the section supervisor's authorization signature. Section status board current. Sensitive items — calibrated test sets, classified system documentation — signed in. Brief the section chief on any open LRUs and any administrative items before final formation.
  • 1600Final formation. Section chief briefs next day's plan. You give each Cpl a priority card for tomorrow — specific task, specific standard, specific deadline. The Cpl who shows up at 0830 knowing what he is working and what the standard is does not need to ask at the morning brief.
  • 1630Liberty call on garrison schedule. Standard liberty brief: OPSEC reminders, DUI zero-tolerance, call you first if anything goes wrong.
  • 1700–2100Personal time. Sergeants Course coursework if enrolled. FitRep Section A drafts. Composite score review. Tuition Assistance coursework. If a Marine in your section called with a problem — financial, personal, behavioral health — you are on the phone or driving there. The section supervisor who answers the call and routes the problem to the correct resource is the section supervisor the section chief hears about the next morning for the right reason.
  • 2200Lights out. The section starts at 0500 regardless of what happened between 1700 and 2200.
  • MEU deployment / expeditionary airfield elementClock breaks. The expeditionary element operates on the battle rhythm. AN/TPQ-46/64 and AN/TPS ground-based radar sections emplaced and operational before the first launch cycle. RADHAZ compliance in the field is harder to maintain — the environment is less controlled and the section is operating without the parent MALS calibration lab, the NAVOSH officer, and the QA officer visible. The standard does not change because the conditions changed. You enforce it harder in the field. The section chief is managing the entire element; you own the radar section's safety and readiness outcomes without prompting.

Weekly Cadence

Monday is the section supervisor's planning day. The section chief's Friday final formation brief gave the week's outline; Monday morning clarifies what changed over the weekend. The MALS queue on Monday morning reflects the weekend's NMC-M aircraft — that queue is the section's priority list for Tuesday and Wednesday. Spend the first 30 minutes of the workday reviewing the queue, matching bench assignments to tech qualifications, and building the section's weekly execution plan before the morning brief. The section that is still sorting out assignments at 0930 on Monday is not the section the section chief holds up as the standard. Mid-week is the maintenance execution window. Tuesday through Thursday the section runs at full tempo — LRU queue progressing, calibration lab coordination on any due-dates hitting this week, QA documentation current. The section supervisor walks the bench every 90 minutes during the work block — not to hover, but to catch fault-isolation decisions at the branching point before the wrong branch is taken. The section chief's Wednesday afternoon walkthrough is the informal mid-week evaluation; the section supervisor who can give a 60-second status on every LRU in the section without pulling up GCSS-MC is the section supervisor who is running the bench, not being run by it. The administrative cycle runs in parallel with the maintenance calendar. FitRep Section A drafts for Cpls whose cycle is ending this quarter are drafted during Monday and Tuesday planning periods and revised based on the week's observations. Monthly counseling sessions run on the last Friday of the month — P&C mark, composite score gap, specific 90-day plan, documented entry. The Friday close-out includes the calibration due-date review, the certification board check, and the GCSS-MC labor entry audit before the section supervisor's authorization signature. The section chief who can take a weekend off confident that the radar shop's documentation is clean and the section supervisor has closed the week's administrative cycle is the section chief who trusts the section supervisor with the harder assignments next week.

Key Skills — How to Drill Each

  1. 01
    Run a radar shop section through a full maintenance cycle — LRU queue managed, calibration schedule current, RADHAZ certs maintained, workcards closed cleanly — and brief the section chief on status without being asked.
    Build a section-level maintenance status board that the section chief can read in 30 seconds: LRUs by status category (in-work, awaiting parts, QA hold, completed), calibration due-dates for the next 30 days flagged by color, RADHAZ certification currency for every tech in the section, and any open counseling entries that are driving a performance conversation. Update the board before the section chief's morning walkthrough, not after. The section chief who walks into the radar shop and finds the status board current and the Sgt section supervisor already aware of the priority LRU's fault-isolation status is the section chief who has confidence in the section without micromanaging it.
  2. 02
    Execute direct-support maintenance on AN/APG-73 and AN/APG-79 antenna assemblies and transmitter groups to the I-level MIM standard, and introduce junior techs to AN/APG-81 AESA depot-coordination procedures.
    At Sgt, your technical execution standard is the model the Cpls are training toward — not the ceiling. Keep your bench skills sharp by taking the complex fault-isolation assignments personally rather than delegating them exclusively; the Sgt who has not worked a transmitter subassembly in six months loses the credibility to coach a Cpl through one. For AN/APG-81 AESA depot coordination, the section supervisor's job is not to do depot-level work but to understand the handoff procedures well enough to write an accurate beyond-I-level escalation package — the right fault documentation, the correct depot reference number, the complete work history that the depot technician needs to avoid re-diagnosing what was already diagnosed at I-level.
  3. 03
    Operate and supervise AN/TPQ-46/64 mortar-locating radar operations at an expeditionary airfield element under the applicable TM, including emplacement, bore-sight, and displacement procedures.
    Do not wait for the MEU workup to run the expeditionary radar section's emplacement and displacement rehearsal. Schedule a dry-run emplacement exercise in the section's training calendar 90 days before the workup begins — the section chief knows the equipment is available for training use between maintenance windows. Walk your Cpls through the bore-sight procedure first as a demonstration, then as a coached execution with you watching, then as a graded execution with you observing from the section chief's position. The Cpl who arrives at the expeditionary airfield element having practiced the emplacement sequence is the Cpl who does not slow down the battle rhythm when the radar section needs to be up before dawn.
  4. 04
    Write clean Section A on FitReps for your Cpls — observed behavior, action-result-impact, no inflation the reporting senior cannot defend at the MALS FitRep board.
    Draft Section A from the monthly counseling entries you have been keeping since the Cpl checked into your section. Each monthly counseling entry should have at least one specific, observable instance — 'Cpl [name] identified a calibration-currency discrepancy on the AN/APG-79 bench test set during routine pre-work setup; coordinated cal lab turnaround before the affected workcard was opened, preventing retroactive invalidation of three LRU closures' — that becomes Section A language. The rule: if you cannot point to the monthly counseling entry that generated the sentence, the sentence does not go in Section A. 'Outstanding performance across all areas' has no counseling entry and will be revised by the reporting senior within 48 hours.
  5. 05
    Mentor your Cpls into Corporals Course graduates and Sgt-board-ready Marines — technical competency, workcard discipline, FitRep prep, composite score management.
    For each Cpl in your section, run a monthly 15-minute composite score review: pull the current TFRS composite, identify the gap against the current 5948 Sgt cutting score, and identify the one variable with the most leverage to move in the next 90 days. Build a specific action plan — MCMAP tape test date, rifle qualification practice schedule, Corporals Course slot confirmation, Tuition Assistance enrollment window — and document it in the counseling entry. The section supervisor who has three Cpls pinning Sgt during his section supervisor tour did not do it by hoping the composite scores moved on their own. He tracked the variables, built the plan, and held the Cpl accountable to executing it.
  6. 06
    Walk a Marine in your section through a financial, SAPR, or behavioral health concern — and route it to the correct resource without it becoming the section chief's problem first.
    Know the resources by building number and contact before you need them: the MCCS Personal Financial Management Program office, the Command Financial Specialist at the MALS, Legal Assistance at the base legal center, the SARC (Sexual Assault Response Coordinator), the battalion chaplain, and Behavioral Health at the Branch Medical Clinic. When a Marine in your section comes to you with a problem — financial crisis, relationship crisis, behavioral health concern, or a SAPR report — your job is to route him to the correct resource inside 24 hours and notify the section chief that the routing happened. The section supervisor who routes the problem cleanly and notifies the section chief is the section supervisor whose chain-of-command credibility grows. The section chief who finds out about a Marine's crisis from the 1stSgt instead of from you will have a direct conversation about your NCO judgment.

Manuals & References — What Chapters Matter

  • NAVMC 3500.14 — Aviation Electronics T&R Manual (Sgt-level collective tasks and section supervisor responsibilities)
    At Sgt, your relationship with NAVMC 3500.14 is the section supervisor's collective task standard — the tasks the MALS command inspection evaluates your section against. Print the Sgt-level collective task list and walk it with the section chief in your first 30 days as a section supervisor. Know the performance steps for each task well enough to coach a Cpl through them without referencing the manual. The MALS QA officer who evaluates the radar shop during the command inspection is using these collective task standards as the evaluation criteria. A section supervisor who knows NAVMC 3500.14 at task-ID granularity is ready for that conversation; one who defers to the section chief every time the QA officer asks a specific question is not.
  • MCO P4790.2C — Marine Corps Aviation Maintenance Program
    This is the governing directive for the section supervisor's full administrative scope — workcard management, QA program compliance, GCSS-MC record standards, maintenance documentation requirements. At Sgt you are the last quality-assurance checkpoint before the section chief signs. Chapter 6 (QA), Chapter 10 (GCSS-MC records), and the workcard closure standards are the chapters the MALS QA officer quotes at your section during the command inspection. The section supervisor who knows MCO P4790.2C at chapter-paragraph granularity is the section supervisor who runs the pre-inspection self-audit, finds the gaps, and corrects them before the QA officer arrives — not after.
  • OPNAVINST 5100.23 — Navy and Marine Corps Occupational Safety and Health (NAVOSH) Program
    At Sgt you own the RADHAZ safety program for your section — annual surveys, exposure tracking, safety briefing documentation, HAZMAT storage compliance. OPNAVINST 5100.23 is the governing document for all of this. The annual NAVOSH review of the MALS radar shop's safety program starts with the section supervisor's documentation. The section supervisor who cannot produce the RADHAZ survey date, the exposure tracking records, and the safety briefing log from the last 12 months when the MALS safety officer walks in is the section supervisor who generates a deficiency finding on his section's NAVOSH record. Own the documentation the way you own the calibration program.
  • MCO 1610.7 — Performance Evaluation System
    You write formal FitReps now. Read MCO 1610.7 cover to cover before the first FitRep cycle — the Section A narrative policy, the attribute marks rubric, the relative value placement guidance, and the reporting senior and reviewing officer responsibilities. The current revision is on Marines.mil; verify the edition. The FitRep mechanics at the Sgt level matter because the Section A you write on your Cpls is the first formal written leadership product the MALS FitRep board evaluates. The reviewing officer — the MALS maintenance officer or the MALS CO — reads your Section A inputs at the batch-review meeting where relative value is assigned across all Sgts in the MALS. The section supervisor whose Section A inputs are consistently specific, defensible, and proportionate to observed performance is the section supervisor whose own FitRep narrative reflects the reporting senior's confidence.
  • MCO 1400.32 — Marine Corps Promotion Manual
    The Sgt-to-SSgt path runs through the centralized SNCO selection board — not the composite score cutting score system used for Cpl and Sgt. Read the SNCO board mechanics carefully: what the board reads, how FitRep relative value is assessed, what PME completion contributes, and how composite score factors in at this level. Pull the current MARADMIN for the 5948 SSgt board cycle before sitting with the section chief about your SSgt timeline. The section supervisor who understands the SSgt board mechanics is building his FitRep profile deliberately across the section supervisor tour — not hoping that good work accumulates into a competitive record.
  • MCO 6100.13 — Marine Corps Physical Fitness, Body Composition, and Military Appearance
    At Sgt, fitness is not only personal — it is the section's standard-bearer signal. The section's average PFT and CFT scores are visible to the section chief and tracked in the MALS health-of-the-force report. A section supervisor who scores 1st-Class consistently while his section averages 2nd-Class has a section fitness culture problem the section chief will address directly. Own the standard. The section supervisor who trains the CFT events specifically — the ammo-can lift and the maneuver-under-fire sequence are direct analogs to the physical demands of the expeditionary airfield element — is the section supervisor whose section closes the fitness gap over a 90-day training cycle.

Standards — How to Hit Each

  • Sergeants Course graduate — required PME gate for Sgt and baseline for SSgt board competitiveness; in-residence is the standard.
    Schedule the in-residence Sergeants Course slot through the section chief 90 days before the course drop date. The section chief's job is to find a billet; your job is to surface the need early enough for him to do it. Confirm the seat 60 days out and confirm again 30 days out — MEU workup schedules shift. If the deployment calendar forces a conflict with the only available in-residence window in the FY, document the conflict with the section chief and enroll in the CDET distance education component as the fallback — but make the in-residence recovery plan explicit before the MEU embarks, not after it returns. The SSgt board reads both forms of completion; in-residence is the preferred and better version.
  • 1st-Class PFT and CFT under MCO 6100.13; your section average is tracked and reported — a section supervisor who cannot pass his own standard has a motivation problem the section chief will address.
    Build PFT and CFT training into the section training plan — not just your personal schedule but the section schedule. At Sgt, fitness is a leadership standard, not a personal one. The CFT events specifically (ammo-can lift, maneuver-under-fire) map directly to the physical demands of the expeditionary airfield element. A section supervisor who scores 1st-Class consistently while his section averages 2nd-Class has a section fitness culture problem the section chief will surface at the next MALS health-of-the-force review. Train with the section; set the pace you expect them to hold.
  • Shop RADHAZ and calibration program rated satisfactory or better at the MALS command inspection — one QA finding traced to your section on your watch is one FitRep cycle you do not get back.
    Run a self-inspection of your section's RADHAZ and calibration programs 45 days before the scheduled command inspection. Walk the calibration due-date log for every piece of test equipment assigned to your bench — not the section chief's list, your personal review. Walk the RADHAZ certification board for every tech in the section. Check the HAZMAT storage compliance against the applicable standards. The self-inspection is not a performance — it is how you find the gaps before the QA officer does. Write down every gap you find, fix it within 48 hours, and document the correction. The section chief who asks about your inspection status two weeks before the command inspection should hear 'complete; found two calibration due-dates, both coordinated with the cal lab for next week's turnaround.'
  • Section FitRep cycle completed on time with clean relative value — the SSgt board for 5948 is FitRep-driven, not composite-score-driven.
    Track the FitRep cycle dates for each Cpl in your section from their first day in the seat — reporting period start date, reporting period end date, reporting senior submission deadline, reviewing officer window. Build a personal FitRep calendar that puts the Section A draft deadline 21 days before the reporting senior's submission deadline. Draft Section A from the monthly counseling notes you have been keeping. Send the draft to the reporting senior for review 14 days before the deadline — not the day before. The reporting senior who has never seen a Sgt's Section A draft submitted with two weeks of revision time available is a reporting senior who will remember which section supervisor gave him that experience.
  • Composite score tracked monthly against current 5948 to SSgt MARADMIN — pull the current MARADMIN for the board cycle before asking the section chief where you stand.
    The SSgt centralized board is different from the composite score cutting score system — FitRep relative value is the primary driver, but the board also reads PME completion, rifle and PFT scores, and conduct record. Know your own FitRep relative value position: ask the reporting senior after the FitRep cycle closes whether you were in the upper, middle, or lower relative value tier compared to other Sgts in the MALS. The section supervisor who understands his own relative value position is the section supervisor who knows what needs to improve before the next board cycle — not the one who finds out from the selection board results.

Technical Mistakes — Concrete Consequences

  • Verbal counseling only — no page-11 entry, no formal counseling sheet on file.
    When a Marine appeals an adverse action or files an IG complaint, the chain's first move is to pull the counseling file. A verbal counseling that is not documented is invisible to the investigating officer and works against the section supervisor — not the Marine. The MALS CO cannot defend a section supervisor who counseled verbally and let a performance problem compound over six months without a paper trail. A page-11 entry takes five minutes to write and 20 years to protect. The section supervisor who keeps current counseling entries on every Marine in the section — monthly at minimum, documented adverse entries within 24 hours — is the section supervisor the section chief can stand behind when the investigation opens.
  • Letting a Cpl run calibrated test equipment against an expired calibration certificate because 'the new cert is in transit.'
    One workcard closed against an out-of-cal test set makes every LRU that test set touched during the expired period a retroactive QA finding under MCO P4790.2C. The section chief absorbs the rework backlog; the section supervisor explains the lapse to the MALS maintenance officer at the weekly review. The calibration-in-transit excuse is not a defense — it is evidence that the section supervisor did not coordinate the calibration renewal before the expiration, which is the section supervisor's job. A section supervisor who has never had a retroactive calibration finding manages the calendar proactively; one who generates the finding explains what the calendar failure was.
  • Doing the fault-isolation work yourself instead of teaching the Cpl to run it.
    The section will fail the MALS command inspection evaluation when you go to Sergeants Course for three weeks. The Cpl who has never run the AN/APG-79 antenna alignment procedure without the section supervisor checking behind him will run it cold on the evaluated lane with the QA officer watching. The section chief's read of a Cpl who fails a section supervisor task because the section supervisor never trained him to do it is a read on the section supervisor's leadership, not the Cpl's competence. Train the Cpl to run the section's core tasks to the same standard you run them. The section supervisor who is irreplaceable is the section supervisor whose section is fragile.
  • Hiding a SAPR, EO, or behavioral health concern from the chain to protect the Marine's privacy.
    SAPR reporting requirements under current Marine Corps policy have defined reporting timelines. The behavioral health referral window for a Marine expressing self-harm ideation is measured in hours. The section supervisor who hides a reportable incident to protect the Marine is the section supervisor who explains to the battalion IG why the incident was not reported within the required window. The Marine is better served by the system — SARC, Behavioral Health, chaplain — than by the section supervisor's discretion. Routing the Marine to the correct resource inside 24 hours is the section supervisor's job; covering the incident is not.
  • Signing the GCSS-MC labor summary without auditing the techs' entries.
    Padded labor hours and missing discrepancy documentation are fraud-waste-abuse indicators under the MALS maintenance accountability program. The section supervisor's signature on the labor summary is the institutional endorsement that the entries are accurate. When the MALS audit surfaces a pattern of inflated hours in a section, the investigation begins with the section supervisor's authorization signature — not the tech who entered the inflated hours. A section supervisor who audits his section's labor entries every Friday before signing can catch and correct entry errors before they become an investigation; one who signs without checking is personally exposed.

Career Decisions at This Rank

  • B-billet pipeline at Sgt — DI duty at MCRD, MSG program, or Recruiter School
    B-billet special duty at Sgt is a consequential career decision in the 5948 community because it pulls the Marine out of the MALS maintenance environment for three to four years. Drill Instructor duty at MCRD Parris Island or San Diego runs roughly three years; the DI tour identifier is a documented positive marker at every promotion board through GySgt and beyond, and the leadership credibility earned under DI conditions is not replicable in the MALS maintenance environment. Marine Security Guard (MSG) at Quantico opens embassy postings globally — 12 to 36 months at a U.S. embassy in a fundamentally different operational environment. Recruiter School in San Diego opens a recruiter tour at a civilian recruiting station. Each B-billet pays a special duty assignment allowance and is visible at the SSgt board. The cost: DI tour family quality-of-life is severe; MSG and recruiter tours are frequently unaccompanied. Talk to Sgts who have done the tour — not the recruiter who sent them.
  • Reenlistment at Sgt — indefinite reenlistment to compete for SSgt, lateral move contract, or EAS
    The reenlistment decision at Sgt is different from Cpl because the SSgt centralized selection board is now visible on the horizon. SRB tier and bonus amounts for 5948 Sgts are published in current MARADMIN messages — pull the current MARADMIN before sitting with the career planner. Options typically include: indefinite reenlistment to compete for SSgt, lateral move (MARSOC, Reconnaissance, B-billet), station-of-choice for the next tour, school-of-choice, or SACO variants. The honest math: Sgts who EAS at first reenlistment leave the SSgt trajectory and the senior technical expertise on the table but step into a civilian avionics market that actively values their I-level radar maintenance background. Sgts who reenlist to chase the SRB without a clear billet plan spend the next three years frustrated. Show up to the career planner conversation with a specific billet preference and a PME plan, not a question about whether to stay.
  • Sergeants Course in-residence versus CDET distance education
    In-residence Sergeants Course at the regional Marine Corps NCO academy is the standard outcome and the materially better option whenever the deployment schedule permits it. CDET distance education satisfies the PME completion requirement for the SSgt board and is the legitimate fallback for MEU deployments or FIREX rotations that consume every available in-residence window in the FY. The practical difference: in-residence is more rigorous, builds a peer network of Sgts from across the Marine Corps that is professionally relevant for the next decade, and includes a leadership practicum that CDET cannot replicate. When you schedule the in-residence slot, schedule it 90 days before the course drop. If the deployment calendar forces CDET, document the conflict with the section chief and complete CDET at the same preparation level you would bring to an in-residence course.
  • Commissioning at Sgt — MECEP, ECP, or remain enlisted to compete for SSgt and the section supervisor trajectory
    For Sgts with college credits through Tuition Assistance or an existing bachelor's degree, the Marine Enlisted Commissioning Education Program (MECEP) and the Enlisted Commissioning Program (ECP) are available. MECEP sustains active-duty pay and benefits while the Marine completes the degree; ECP is the direct commission for Sgts with a bachelor's already in hand. The honest test is not whether you can pass TBS — most technically credible 5948 Sgts can — but whether you are better at building organizational systems, writing operations orders, and managing the avionics division's maintenance program at the officer planning level than you are at running a section and developing NCOs. Sgts who stay enlisted and compete for SSgt, GySgt, and eventually SgtMaj make a different kind of institutional contribution to the 5948 community. Neither path is wrong. Talk to the MALS maintenance officer and the section chief — their read of your commissioning potential is the leading indicator. Officers who came from the 5948 enlisted community are worth seeking out for that conversation.
  • MARSOC Assessment and Selection or Reconnaissance (BRC) at Sgt
    The major lateral pipelines are open at Sgt — MARSOC Assessment and Selection (A&S) at Camp Lejeune as the entry point for the 0372 Critical Skills Operator pipeline, and the Basic Reconnaissance Course (BRC) at Coronado as the entry point for 0321 Recon Man. Each is a career-shaping decision that forecloses the conventional 5948 MALS maintenance trajectory. The MARSOC training pipeline runs seven to nine months; the BRC is roughly nine weeks, leading to a Reconnaissance assignment in the MARFORSOC or a Force Reconnaissance company. The honest math: each lateral pipeline is harder than the section supervisor billet, and the section supervisor who is considering it because the MALS maintenance environment is difficult should think longer before applying — the A&S is more difficult than any maintenance command inspection. The section supervisor who is drawn to special operations should screen at Sgt, when the physical peak and the career flexibility are both available. Past Sgt, the screening windows narrow.

How the Seat Varies by Unit Type

  • Active component MALS at CONUS MCAS — F/A-18 supporting units
    The standard 5948 Sgt section supervisor assignment. The radar shop has a mature MIM library, an established QA culture, and a workload driven by the F/A-18 Hornet and Super Hornet flight schedule. The section supervisor's week at a large CONUS MALS (Beaufort, Miramar, Cherry Point) runs at a predictable pace except during pre-deployment maintenance pushes and MEU workups, which are intense. The section chief mentorship relationship is well-developed at large CONUS MALS because there are multiple senior 5948 SSgts and GySgts in the shop and the section supervisor gets direct exposure to the SSgt billet model.
  • Active component MALS at CONUS MCAS — F-35B supporting units (Beaufort, Yuma)
    The AN/APG-81 AESA radar maintenance environment is more dynamic than the F/A-18 APG-73/79 environment — more frequent MIM revisions, a closer contractor relationship (Northrop Grumman field service representatives are more present in the shop), and depot-coordination procedures that differ from traditional all-Marine I-level work. The 5948 Sgt section supervisor at an F-35B MALS is operating in a technically more demanding environment with a stronger post-service civilian credential. The MALS maintenance tempo during F-35B readiness pushes is high.
  • Forward deployed MALS at MCAS Iwakuni — III MEF
    The operational tempo at Iwakuni includes partner-nation exercises with Japan Air Self-Defense Force and Korean Marine Corps, and the maintenance mission supports the forward-deployed Marine Aircraft Group squadrons at a MEF-forward tempo. The Sgt section supervisor at Iwakuni carries more per-capita responsibility because there are fewer senior 5948s per shop relative to the CONUS MALS. Performing well as a section supervisor at Iwakuni is a visible FitRep differentiator — the MALS CO at a III MEF forward location writes FitRep narratives in a different operational context than a CONUS section supervisor, and the SSgt board reads that context. Unaccompanied for most Sgts; verify current policy.
  • MEU BLT — expeditionary airfield element as senior 5948
    Section supervisor on the expeditionary airfield element during a 6-to-7-month MEU deployment. The parent MALS's calibration lab, QA infrastructure, and maintenance management support are not fully available in the field. You are managing RADHAZ compliance with improvised safe-distance controls, calibration currency issues that require depot or shore-based calibration lab coordination through the ship's communications, and fault-isolation decisions on ground-based systems without the section chief physically present for every call. The MEU deployment is the formative section supervisor operational event — Sgts who deploy MEU as senior 5948 at the expeditionary airfield element come back with the operational credibility the SSgt board reads. The section chief is watching every exercise event and every contingency response posture day.
  • Reserve component MALS
    Reserve 5948 Sgt section supervisors face the compressed qualification and evaluation opportunity timeline characteristic of all reserve aviation maintenance billets. Monthly drill weekends plus annual training provide a fraction of the annual qualification hours available to active-component counterparts. Section supervisors who are serious about SSgt board competitiveness often pursue active-duty training (ADT) orders to supplement the qualification timeline. The MALS command inspection at AT is the reserve section supervisor's primary formal evaluation event — it carries T&R tracking weight against the same NAVMC 3500.14 collective standards as the active-component command inspection, in a compressed AT window. The SSgt centralized board processes reserve and active component records through the same mechanism; FitRep relative value comparison at the board includes both.

What Good Looks Like at This Rank

The good 5948 Sgt section supervisor is the Marine the MALS maintenance officer puts in front of the aircraft commander when a radar system write-up is holding up the launch schedule — calm, technically specific, and ready to give a clear status and a realistic timeline without overpromising. The maintenance officer is not standing next to him for the brief because the maintenance officer has watched this section supervisor handle a dozen similar conversations and knows the 'the system will be ready for functional check by 1400' call is a real number, not a hedged estimate designed to buy time. His Cpls are FitRep-ready and on a Sgt-board timeline because he counseled them monthly with a counseling entry that described observed behavior, told them where the composite score gap was, and gave them a specific 90-day plan to close it. The three Cpls who pin Sgt during his section supervisor tour do so because the section supervisor identified the Sgt cutting score window 12 months out and built the qualification and composite score plan with them — MCMAP tape test timing, rifle qualification practice schedule, Corporals Course slot confirmation, Tuition Assistance enrollment — rather than discovering the gap at the cutting score window. The section chief mentions his name to the MALS maintenance officer as the reason those Cpls made Sgt. The SgtMaj of the MALS knows his name within the first year. The FitRep Section A narratives on his Cpls are clean. The reporting senior — the platoon commander or MALS maintenance officer — does not call him to revise the language because the Section A actually describes what the Cpl did in action-result-impact terms rather than performing as a general recommendation letter. The MALS CO's FitRep board review does not flag any of the section supervisor's Section A inputs for revision because the language is specific, defensible, and proportionate to the actual performance. The section supervisor whose Section A inputs survive the battalion review without revision is the section supervisor whose own FitRep narrative the reporting senior writes with confidence.

Preview — The Next Rank

SSgt is the radar shop chief rank in the MALS avionics structure. The transition from section supervisor to shop chief is the transition from owning one section's LRU queue and one tier of FitRep inputs to running the entire radar shop's enlisted side — training calendar, three to four Sgt FitReps per cycle, RADHAZ program authority at the MALS level, MEU workup certification packages, and the weekly maintenance review brief to the MALS maintenance officer and the MALS QA officer. The FitRep load at SSgt is the piece the Sgt section supervisor billet does not fully prepare you for. At Sgt you write one to two Cpl FitRep Section A inputs per cycle. At SSgt you write three to four Sgt FitReps per cycle, and the reporting senior builds the attribute evaluations off your Section A inputs for each. The relative value placement at SSgt has direct SSgt-to-GySgt board implications that compound across cycles; one weak FitRep cycle at SSgt moves the GySgt timeline by years. Writing Section A at the quality level that the MALS FitRep board accepts without revision is the administrative skill the SSgt builds and owns for the next three to four years. The job content at SSgt operates at MALS and wing level. The maintenance officer's name in the weekly maintenance review brief is yours. The MALS QA officer's annual NAVOSH review of the radar shop is your documentation program being evaluated. The MALS CO's FitRep narrative on the SSgt shop chief is shaped by whether the shop's readiness rate is above the COMNAVAIRFOR minimum, whether the command inspection finds zero QA findings in the radar shop, and whether the Sgts in the shop are FitRep-ready and SSgt-board-competitive. The GySgt-to-MSgt/1stSgt path conversation begins to take shape at SSgt — the split between the occupational SME track (MALS maintenance chief, avionics schoolhouse master tech billet, NAVAIR technical liaison billet) and the troop-leading track (1stSgt, SgtMaj) starts here. The section chief — now the SSgt's reporting senior — will ask which track you are building toward. Know the answer before he does.
FAQ

5948 E5 — Frequently Asked Questions

Q01What does a E5 5948 (Aviation Radar Repairer) actually do?
You run a radar shop section — bench techs, junior NCOs, the LRU queue, the calibration program, and the GCSS-MC maintenance records that document all of it.
Q02What's the most important thing to know as a E5 5948?
The radar section is yours to run, not yours to do.
Q03What does a typical day look like for a E5 5948?
Time-blocked day at the E5 5948 rank tier: 0500 Wake. Phone check for the section group chat — any overnight incidents, any emergency maintenance NMC-M from the night crew. If a priority LRU went NMC-M overnight, you already know the bench assignment before PT formation, 0530 PT formation. You take section accountability and report to the section chief. The section supervisor who is the last NCO into formation is noted. Report accountability clean; any missing Marine is your problem before it becomes the section chief's, 0545–0700 Unit PT. Run at the front of your section.…
Q04What mistakes get E5 5948 soldiers fired or relieved?
Missing Sergeants Course through schedule conflict without recovering the slot. The SSgt centralized selection board reads PME completion; a Sgt who is not Sergeants Course-complete when the board meets is visibly disadvantaged in the relative value comparison regardless of FitRep quality. The MALS maintenance officer cannot waive the requirement and the career planner cannot waive it. Schedule in-residence, protect the slot, and if the MEU workup consumes the window,…
Q05What career decisions matter most at the E5 5948 rank tier?
B-billet pipeline at Sgt — DI duty at MCRD, MSG program, or Recruiter School — B-billet special duty at Sgt is a consequential career decision in the 5948 community because it pulls the Marine out of the MALS maintenance environment for three to four years. Drill Instructor duty at MCRD Parris Island or San Diego runs roughly three years; the DI tour identifier is a documented positive marker at every promotion board through GySgt and beyond, and the leadership credibility earned under DI conditions is not replicable in the MALS maintenance environment.…
Q06What's next after E5 for a 5948 (Aviation Radar Repairer) in the Marines?
SSgt is the radar shop chief rank in the MALS avionics structure.
Q07What manuals and regulations does a E5 5948 need to know cold?
NAVMC 3500.14 — Aviation Electronics T&R Manual (Sgt-level collective tasks and shop-supervisor responsibilities you are evaluated against).; MCO P4790.2C — Marine Corps Aviation Maintenance Program (quality-assurance, workcard management, and MALS maintenance standards you now enforce as a section supervisor).; Applicable MIM series for AN/APG-73, AN/APG-79, AN/APG-81, AN/TPS, AN/TPQ-46/64 (you train your techs against these and you are the last signature before the workcard closes).

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards