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15BE5

Aircraft Powerplant Repairer

E-5 (Sergeant) · Army

HEADS UP

You own the section's OR rate now. Not the aircraft — the company commander owns the aircraft. You own the production schedule, the work orders, the TMDE calibration records, and the counseling paperwork for every soldier in your section. When the production control sergeant asks why a tail number has been in the amber lane for 72 hours, the answer she gets should come from you before she asks. If it does not, you are running the SGT seat like a specialist.

The Honest MOS Read
Sergeant in the engine shop is the first rank where you carry both the technical and the administrative load simultaneously and neither one has relief. You run a three-to-five soldier section inside an Aviation Maintenance Company or an Assault Helicopter Battalion flight-line element. You are responsible for the section's production output, training calendar, counseling records, and contribution to the company OR rate. The production side is the fault-to-fix cycle. You open the work order when the fault is reported, assign the diagnosis by soldier qualification, monitor the parts queue through ULLS-A(E), schedule the MOC ground run or MTF coordination, and close the work order clean with the result attached. When the fault sits on parts hold more than 48 hours, you are the one who calls the supply sergeant. When a soldier's diagnosis has gone sideways — two components ordered, neither fixed the fault — you get in the engine bay personally and run the TM tree. The administrative side runs in parallel. AR 623-3 requires monthly counseling on DA 4856 for each soldier. The Plan of Action is specific, measurable, and signed before the soldier leaves the office — not 'improve your maintenance performance' but 'complete platform qualification card tasks 14, 17, and 22 before the next counseling session on [date].' Those action items become NCOER input bullets when the soldier performs and become the legal record when a soldier is removed. Write them like both outcomes are possible. The NCO Development Program is yours to run at the section level. Your specialists need to be progressing toward FAA A&P powerplant certification through JSAMT, toward BLC, and toward platform qualification on every engine variant in the CAB fleet. If they are not progressing on all three, the counseling that documents the gap and the corrective timeline is what you write tonight. The section's FAA A&P credential rate is visible — the production control NCO and the 151A warrant can see it. The NCOER for your section's soldiers is due annually and the supporting documentation — the counseling chain, the training records, the JSAMT log, the ARMS/CMDP findings — is the source material for evaluation bullets. Write accurate bullets, not inflated ones that make every soldier look like a SGM candidate and not crushed ones that harm a career because you wrote the NCOER during a bad week. The evaluation follows the soldier forever.
Career Arc
  • 01SGT pin-on post-BLC, promoted by the semi-centralized promotion board with PSG recommendation confirmed.
  • 02First 90 days as section NCO: counseling cadence established for each soldier, work-order signature authority transferred from production control NCO to section NCO for section-level work.
  • 03ALC (Advanced Leader Course) slot — MOS-specific track at the regional NCO Academy, the STEP gate for E-6.
  • 04FAA A&P certification completed or actively in progress; JSAMT coordination with Fort Novosel's Aviation Center of Excellence A&P pipeline.
  • 05Section CMDP and ARMS inspection passed — no major findings attributable to the section on the NCO's watch.
  • 06First re-enlistment window as an NCO — bonus math, family considerations, civilian aviation market comparison, and 150A warrant path evaluated.
  • 07SSG board readiness: ALC graduate, NCOER bullets defensible, BLC/ALC graduate rate in section documented, production control competency demonstrated to the 151A warrant.
Common Screwups
  • ×Counseling soldiers verbally rather than writing the DA 4856. The relief-for-cause is yours to explain when the company commander asks why a soldier was removed without a paper trail — 'I told him four times' is invisible in a legal proceeding. Two minutes typing a DA 4856 is 12 months of legal protection.
  • ×Signing the aircraft airworthy when your specialist closed the work order in TAMMS-A but you have not confirmed the MOC ground run and the MTF result are attached. The chip light on the next flight carries your name in the maintenance record.
  • ×Hiding a CMDP or ARMS shortcoming from the production control sergeant to fix it before the inspection. The brigade aviation maintenance officer finds it during the actual inspection and the finding carries the production control sergeant's name and yours — the cover-up is worse than the finding.
  • ×Skipping the ULLS-A(E) demand-history review before the AMC brigade synchronization. The OR slide goes up without context and the production control officer cannot defend the Class IX-A float when the AMC commander asks why the section NCO did not prep him.
  • ×Missing ALC enrollment timing because you expected the PSG to manage the slot. ALC is your career gate — the SGT who lets the slot slip watches his peer pin SSG first and explains the gap in the next NCOER.

A Day in the Life

  • 0500Up. Check phone for overnight accountability issues — section soldier had a car incident, family emergency, or work-order status change from the 24/7 flight-line shift. Handle it or note it for the morning formation brief to the production control sergeant.
  • 0530PT formation. You take accountability for your section (3-5 soldiers), report to the production control sergeant or platoon sergeant. Accountability report is given before she asks — not after.
  • 0545-0700Unit PT. You set the pace for your section and stay in it. The section NCO who drops behind on the 3-mile run and skips the cool-down is the NCO whose soldiers do the same thing on the days she is not watching.
  • 0700-0850Hygiene, breakfast, change to OCPs. Quick ULLS-A(E) check on the section's open work orders from yesterday — any parts-on-order status changes, any new faults logged by the overnight crew.
  • 0900First formation. Production control sergeant runs the morning maintenance brief — aircraft status, open faults, parts on order, and today's maintenance priority. You brief your section on their specific assignments for the day.
  • 0915-1130Section work call. Open work orders in ULLS-A(E) before the first tool leaves the shadow board. Assign diagnostic tasks by qualification — the SPC with the full fault-isolation card goes to the T700 EGT fault; the PFC with the fresh card goes to the routine PMD.
  • 1130-1300Chow. Coordinate with the production control NCO on the afternoon test-cell slot while the section is at chow — the MOC run for the engine that completed repair this morning needs to be scheduled before end of day.
  • 1300-1500Afternoon work call — fault continuation, MOC run at 1400 if the slot is confirmed. Counseling sessions if monthly DA 4856s are due: 30 minutes per soldier, Plan of Action signed.
  • 1500-1545Section tool inventory, ULLS-A(E) work-order status update, TMDE calibration check against the sign-out log. Everything counted before the final formation. Any discrepancy resolved before the cowlings go on.
  • 1545-1630Final formation. You brief the section on tomorrow's maintenance schedule and any administrative requirements (school packets due, leave requests pending, upcoming CMDP inspection window).
  • 1630Released most garrison days. Exercise alerts, scheduled ground runs, and field exercises extend this. The 1SG does not release the section with open work orders that are blocking an aircraft going to the MTF tomorrow — clear the production board before you clear the formation.
  • 1700-1900Admin window. NCOER input drafts when the rating cycle is open. ULLS-A(E) demand-history report for the brigade synch prep if it is that week. ALC enrollment follow-up with S3 if the slot window is open. JSAMT log review for the section.
  • 1900-2100If a soldier in the section is having a personal crisis, the section NCO's phone is on. Route to ACS, legal assistance, or chaplain as appropriate. Write the DA 4856 follow-up note in the morning while the conversation is fresh.
  • Field rotation (NTC/JRTC/deployment)The section moves with the aircraft. Manage the field maintenance kit, engine-change sequence under time pressure, and BDAR triage when a bird comes in with damage to the power section. Stand-to at 0500; work orders do not close until the aircraft are back in the hangar.

Weekly Cadence

Monday opens with the section's contribution to the weekly production board. Before that meeting, you pull a ULLS-A(E) report and walk the engine bays to confirm the physical aircraft condition matches the system record. The gap between what ULLS-A(E) says and what you find in the hangar is the Monday morning surprise you want to catch before the board, not during it. Tuesday and Wednesday are the production core of the week. Fault work in progress, engine changes scheduled, MOC runs in the morning-to-midday window. Wednesday is when NCOER input cycle moves if the rating period is open. Pull the ULLS-A(E) work-order counts, CMDP inspection results, and JSAMT log status Wednesday while the quarter's accomplishments are current — draft the bullets from data, not memory. The section NCO who defers NCOER work to Thursday produces thin bullets and submits late. Thursday is brigade synch prep day for the senior NCO chain. You are not in the brigade meeting at E-5, but your data is. The demand-history report, aging parts-on-order status, and OR-rate context should be in the production control NCO's hands by 0800 Thursday. Friday is the company formation event and the section's administrative calendar — counselings due, school packets with Friday suspenses submitted, leave requests through S1.

Key Skills — How to Drill Each

  1. 01
    Build and defend a section production schedule — green/amber/red across assigned powerplants, with realistic mechanic-hours, Class IX-A float, and the next phase cycle on the horizon.
    Build the schedule in 30-day blocks against the unit's aircraft availability report, phase inspection due-dates, and your section's available mechanic-hours. Review it weekly against what actually happened. When the phase for tail number 6 is 45 days out and you are three mechanics down for BLC and ALC slots, that information should be on the production control NCO's desk at the 60-day mark, not the week the phase starts.
  2. 02
    Run a section through a field maintenance package at NTC/JRTC — engine changes under time pressure, battle damage assessment for powerplant systems.
    The T700 engine change that takes four hours in the hangar takes seven in a motor pool at NTC with a flashlight and a 30-mph wind. Build the field-maintenance team drill in garrison before the CTC rotation — run the engine-change sequence under timed conditions, in the dark, with the field maintenance kit only, once a quarter. The OPFOR does not stop the fight while you look for a fitting you should have pre-staged.
  3. 03
    Conduct a CMDP inspection at the section level — DA Forms 2408 series, TMDE calibration records, tool accountability, training records, all defensible.
    CMDP is a standard you maintain every day so the quarterly inspection is a confirmation rather than a discovery. Run a self-CMDP every 30 days: cross-check ULLS-A(E) status against the physical aircraft condition, verify TMDE calibration labels against the register, and confirm training records match the qualification cards. The findings you catch in a self-CMDP in month 2 are the findings the ARMS team would have found in month 4.
  4. 04
    Operate ULLS-A(E) / TAMMS-A at the section NCO level — open, monitor, and close work orders; defend the section's Class IX-A demand history at the company production meeting.
    Before every production meeting, run the ULLS-A(E) section report, identify work orders aging beyond plan, and have a status update for each — parts-on-order with ETA, diagnostic-in-progress with next step, or awaiting MTF scheduling. The section NCO who arrives at the production meeting without that review cannot answer the first question the production control officer asks.
  5. 05
    Mentor your specialists into diagnosis-first habits and through the FAA A&P pathway. If they leave your section as parts-changers, that is on you.
    Require fault-isolation tree documentation before you review any part request. When a specialist brings a parts request, ask one question: 'Show me where in the TM tree this root cause is confirmed.' If he can show you, approve it. If he cannot, return to the aircraft together and run the tree. Do this three times and the fourth time he pre-stages the TM documentation before bringing the request. For A&P mentoring: review each specialist's JSAMT log at the monthly counseling and set a specific exam preparation goal in the Plan of Action.

Manuals & References — What Chapters Matter

  • TM 1-2840-248 series — T700-GE-700/701 Series Turboshaft Engine Maintenance Manual
    You brief from this manual at the section level, not just read it. When the 151A production control warrant questions a fault-isolation decision, the citation is 'TM 1-2840-248, chapter X, fault-isolation table Y — the differential pressure reading was Z, which routes to the bleed-valve circuit per the decision tree.' The section NCO who can cite chapter and table has a different conversation than the one who says 'we ran the tree.'
  • DA PAM 738-751 — Functional Users Manual for the Army Maintenance Management System – Aviation (TAMMS-A)
    Your bible for aircraft records at the section level — work-order lifecycle, DA 2408-13 series entry standards, and the controlled-exchange documentation requirements that ARMS reviews against. An unpapered CX found in the next ARMS review travels across aviation commands and follows the maintenance unit's readiness record.
  • AR 95-1 — Army Aviation — Flight Regulations; AR 750-1 — Army Materiel Maintenance Policy
    AR 95-1 defines the airworthiness framework that your section NCO signature endorses every time you close a work order on a flying aircraft. AR 750-1 defines the Field-Level maintenance boundary — what your section can authorize versus what requires CCAD sustainment-level reach-back. Knowing both cold lets you tell the production control officer which faults are section-level and which go up the chain without being asked.
  • AR 623-3 — Evaluation Reporting System; DA PAM 623-3 — Evaluation Reporting System Procedures
    Your section soldiers' NCOERs and supporting counseling chain are governed here. The DA 4856 counseling requirements, rater/senior rater qualification rules, and NCOER writing guidance are in DA PAM 623-3 chapter 2. Read it before you write your first NCOER as a rater — the administrative errors that travel up to HRC are avoidable if you read the procedural manual.
  • ATP 6-22.1 — The Counseling Process; ADP 6-22 — Army Leadership
    ATP 6-22.1 is the procedural reference for DA 4856 counseling — the Plan of Action structure, signature requirements, and counseling categories. ADP 6-22 is the philosophical spine — read chapter 2 (leadership attributes) and chapter 3 (leadership competencies) before your first year as an NCO ends. The CSM quotes these; you should be able to say where the quote came from.

Standards — How to Hit Each

  • 15B ALC graduate within the promotion window — SLC packet on the bench when E-6 enters the conversation.
    ALC enrollment runs through ATRRS and requires a DA 4187 and commander nomination. In competitive aviation maintenance MOSes, ALC slots can have a 6-12 month wait. Submit the enrollment packet the month you pin SGT. The SSB board does not consider NCOs who are not ALC complete, and the NCOER that says 'ALC not yet attended' at E-5 is a visible gap at the senior-rater level.
  • FAA A&P certification complete or in flight — the JSAMT pathway is one of the highest-leverage civilian-portable credentials in the 15-series.
    By the time you pin SGT you should have 18+ months of documented JSAMT powerplant hours — the threshold for the powerplant certificate. Schedule the written exam through the Fort Novosel JSAMT coordinator or at an FAA-approved testing center. A SGT 15B who holds the FAA A&P powerplant certificate is the NCO the Corpus Christi field-service representative mentions to the AMC commander when the depot is looking for ETS candidates to transition into contract maintenance.
  • Section OR rate at or above the company average; CMDP or ARMS finding rate trending down quarter-over-quarter.
    The OR rate is the outcome of your section's production discipline. The inputs you control are: work-order accuracy (no-reopen rate), parts-queue management (no aged parts-on-order without status updates), and TMDE calibration (zero lapses). Build the CMDP self-inspection into the monthly training calendar and run it before the quarterly review so the findings you catch are the ones you close, not the ones the ARMS team finds.
  • NCOER bullets in measurable, defensible format — Class IX-A demand managed, OR rate held, work orders closed clean, soldiers credentialed.
    Pull the actual ULLS-A(E) data, the CMDP/ARMS summary, and the JSAMT logs before you write the evaluation cycle. 'Managed engine section maintenance operations' is not a bullet — 'maintained section OR rate above company average for 3 of 4 quarters; zero ARMS findings attributable to section paperwork; 2 of 4 specialists progressing toward FAA A&P powerplant certification' is a bullet. The numbers in the bullet should match a document the senior rater can request.

Technical Mistakes — Concrete Consequences

  • Improper torque on engine hardware at the section NCO sign-off stage — approving a work order where the torque stripe is missing or applied without a calibrated wrench.
    A fuel fitting under-torqued and seeping during a power-assurance check grounds the aircraft, reopens the work order, and puts the NCO who signed off in front of the production control warrant explaining why the torque stripe did not match specification. If the fitting backs out in flight, the Safety Center investigation traces the maintenance record to the last closing signature.
  • Skipped AOAP sample at the section NCO scheduling level — missed Army Oil Analysis Program window because the maintenance schedule did not account for it.
    AOAP sampling windows are scheduled events in ULLS-A(E) and the failure to execute them is an ARMS finding. A missed sample removes the early-warning data that would have flagged metallic contamination before a chip-detector event. The chip-detector deadline that follows costs orders of magnitude more than the scheduled oil sample would have. The section NCO whose AOAP schedule has consistent gaps owns that readiness cost.
  • Accepting a junior soldier's chip-detector classification without running the TM 1-2840-248 decision tree to confirm it.
    The section NCO who rubber-stamps a chip-detector call takes on the diagnostic liability as her own. If the classification is wrong — a deadline event called on-condition — the aircraft flies in a degraded condition with the section NCO's name on the last maintenance entry. The production control warrant's review of the chip-detector log surfaces the discrepancy on the next ARMS review.
  • Wrong consumable approved and used on an engine service — wrong oil spec or fuel additive because the section NCO did not verify the shelf item against TM specification.
    A wrong-spec oil service degrades the fuel-control unit and accessory gearbox over months. When the engine fails and the CCAD depot team traces the root cause through oil-sample spectrometry, the DA 2408-13-1 entry carries the service date, the mechanic's name, and the section NCO's counter-signature. Both names are in the Safety Center report.

Career Decisions at This Rank

  • ALC timing — lock the slot at pin-on or let it drift
    ALC is the hard gate for E-6 promotion — an NCOER that shows 'ALC not yet attended' at E-5 is a visible gap at the senior-rater level. Submit the enrollment packet the month you pin SGT, accept whatever window ATRRS gives you, and do not wait for the PSG to manage it. The NCO who is ALC-complete before the E-6 board opens is in a fundamentally different competitive position.
  • Re-enlistment at the first NCO window — bonus math vs. civilian aviation market
    A 15B with a completed FAA A&P powerplant certificate and 3+ years of T700 JSAMT hours is hireable at MRO contractors and CCAD-adjacent civilian maintenance firms the week he ETSes. The Army re-enlistment bonus for 15B varies by zone and current requirement — pull the HRC SRB MILPER before signing. The honest question is whether the technical depth you have built is better invested finishing the Army production control NCO track to SSG, or whether the civilian option produces better pay and quality-of-life for where the family is. Both answers are defensible. The soldier who re-enlists without running both sets of math is not making a choice — he is deferring one.
  • 150A Warrant Officer path — build the packet at SGT or wait for SSG
    The 150A Aviation Maintenance Technician (Nonrated) Warrant Officer path is the career capstone for technically gifted 15-series NCOs. The packet requires a strong technical record (section-level production control competency, NCOER performance tiles strong, FAA A&P or extensive JSAMT hours), a flight physical, and commander endorsement. If the 151A production control warrant in your shop tells you the packet is ready, believe her and submit it. If she has not said that yet, ask directly what the technical record needs to show. Her answer is the most accurate signal you will get.
  • Drill Sergeant / Recruiter / Special Duty Assignment — is it worth the 3-year detour at SGT?
    SDA tours produce the X4 ASI (Drill Sergeant identifier) that is visible at the E-7 board, a bonus, and accelerated leadership development. The cost is real: a Drill Sergeant tour at an OSUT battalion is 12-16 hour days for three years and the technical currency in the 15B shop degrades unless deliberately maintained. Family quality-of-life during a DS tour is genuinely difficult. The soldiers who thrive in SDA tours care specifically about individual soldier development — not about the ASI for the board. Talk to NCOs who have done the tour before volunteering.

How the Seat Varies by Unit Type

  • Combat Aviation Brigade (CAB) — Active Duty, deploying cycle
    SGT in a deploying CAB AMC carries the heaviest version of the section NCO load. Deployment cycles mean the section's technical proficiency is tested in operational conditions — engine changes in deployed environments, BDAR assessment under time pressure, and the AOAP and TAMMS-A records discipline that the post-deployment ARMS review will scrutinize. The OR rate the CAB commander sees during a deployment is partly a function of the work you did in garrison to build the section's diagnostic discipline and parts-queue management. High-tempo units produce technically sharp SGTs quickly — and burn them out quickly if the unit does not manage leader rest and recovery.
  • Assault Helicopter Battalion (AHB) flight-line section
    AHB flight-line section NCOs work directly against the daily flight schedule — the aircraft that flies at 1400 needed the engine PMD completed by 1200 and the work order closed before the crew chief accepts the aircraft. The tempo is different from a maintenance company production cycle: shorter turn windows, higher sortie-per-day rate, and a tighter relationship with the crew chiefs and pilots who are flying what you maintain. The section NCO who learns to brief a pilot on the fault history of an aircraft before the flight is adding a safety value that the TM does not cover.
  • National Guard aviation battalion
    Guard SGT 15B section NCOs carry the administrative load of the section against a drill weekend / Annual Training calendar that compresses what active-duty units do in 52 weeks into roughly 39 drill days plus AT. The counseling cadence, the JSAMT documentation discipline, and the CMDP self-inspection cycle all have to be deliberately scheduled against the available time rather than integrated into a daily work routine. The Guard SGT who builds a productive section in this environment is typically one who uses the week-before-drill preparation window to build the administrative groundwork that the unit executes on the weekend.
  • Theater Aviation Sustainment Maintenance Group (TASMG) / AMC area support elements
    Section NCOs in TASMG or AMC area-support maintenance environments manage higher engine-component throughput, work more directly alongside CCAD depot field teams, and see a broader fault-type catalog than a line CAB section NCO. The sustainment-level boundary is a daily operational reality rather than an occasional escalation point. A SGT who builds section NCO competency in a TASMG environment arrives at the SSG production control NCO seat with more technical depth and TAMMS-A work-order complexity experience than a peer from a line CAB — and is correspondingly better prepared for the 150A warrant packet technical interview.

What Good Looks Like at This Rank

The good SGT 15B runs a section whose OR rate the AMC commander names in the brief without hesitation — not because the SGT has been vocal in the right meetings, but because the section's work orders do not reopen and the ARMS review last quarter closed with no section-attributable findings. The production control warrant has told the AMC commander twice that this section NCO's fault-isolation calls are accurate. She has not had to walk to the engine bay to verify a section diagnosis in six months. His specialists do not bring parts requests without the TM fault-isolation documentation. He required it in the first two months through consistent, non-punitive correction on the workstand — returned two parts requests without approval and required the specialist to show the diagnostic trail before re-submitting. By month three it became the section's standard. The FAA A&P powerplant certification rate in his section is the highest in the shop because the monthly counseling has a specific JSAMT goal in the Plan of Action for every specialist. The production control sergeant does not remind him that the ULLS-A(E) demand history review is due before the brigade synch. She gets it Monday morning of the prep week, with aging parts-on-order highlighted and a status-and-action line next to each one. The ALC packet is in. The SSG board is two years out, and the section's track record is the bullet he needs.

Preview — The Next Rank

Staff Sergeant is the rank where the engine shop is yours end-to-end. The section NCO's job at SGT is building the production schedule and defending the section's work. The SSG's job is running the production floor for the entire engine shop — 10-18 maintainers, the ULLS-A(E) production board at company level, and the direct voice at the brigade aviation maintenance synchronization meeting when the CAB commander asks why a battalion's mission-capable rate is amber. The NCOER transitions at SSG as well — you move from writing evaluations on specialists to writing evaluations on sergeants. Your SGTs' performance bullets need the same specificity and documentation discipline you built in your own section, because their performance tiers at the SSG board are partly determined by the quality of the NCOER you write. The SSG 15B who builds SGTs into production-control-ready candidates is the production control NCO the 151A warrant calls for at the next AMC. The 150A warrant officer path becomes a real decision at SSG if it was not already. If the production control warrant has mentioned your name in the 150A conversation, she is not being polite — she is telling you the technical record is there. The SSG who lets that window pass because the timing was not right watches the next class of technically sharp section NCOs get board-selected and spends four years wondering what the timing would have needed to be.
FAQ

15B E5 — Frequently Asked Questions

Q01What does a E5 15B (Aircraft Powerplant Repairer) actually do?
You run a three-to-five soldier engine-shop section inside an Aviation Maintenance Company (AMC) of a Combat Aviation Brigade (CAB), or the powerplant section of an assault helicopter battalion flight-line.
Q02What's the most important thing to know as a E5 15B?
You own the section's OR rate now.
Q03What does a typical day look like for a E5 15B?
Time-blocked day at the E5 15B rank tier: 0500 Up. Check phone for overnight accountability issues — section soldier had a car incident, family emergency, or work-order status change from the 24/7 flight-line shift. Handle it or note it for the morning formation brief to the production control sergeant, 0530 PT formation. You take accountability for your section (3-5 soldiers), report to the production control sergeant or platoon sergeant. Accountability report is given before she asks — not after, 0545-0700 Unit PT. You set the pace for your section and stay in it.…
Q04What mistakes get E5 15B soldiers fired or relieved?
Counseling soldiers verbally rather than writing the DA 4856. The relief-for-cause is yours to explain when the company commander asks why a soldier was removed without a paper trail — 'I told him four times' is invisible in a legal proceeding. Two minutes typing a DA 4856 is 12 months of legal protection; Signing the aircraft airworthy when your specialist closed the work order in TAMMS-A but you have not confirmed the MOC ground run and the MTF result are attached.…
Q05What career decisions matter most at the E5 15B rank tier?
ALC timing — lock the slot at pin-on or let it drift — ALC is the hard gate for E-6 promotion — an NCOER that shows 'ALC not yet attended' at E-5 is a visible gap at the senior-rater level. Submit the enrollment packet the month you pin SGT, accept whatever window ATRRS gives you, and do not wait for the PSG to manage it. The NCO who is ALC-complete before the E-6 board opens is in a fundamentally different competitive position; Re-enlistment at the first NCO window — bonus math vs.…
Q06What's next after E5 for a 15B (Aircraft Powerplant Repairer) in the Army?
Staff Sergeant is the rank where the engine shop is yours end-to-end.
Q07What manuals and regulations does a E5 15B need to know cold?
TM 1-2840-248 series — T700-GE-700/701 series Engine Maintenance Manual (you brief from this, not just read it).; TM 1-2840-243 series — T55-GA-714A engine maintenance manual (Chinook fleet, if applicable to your CAB).; DA PAM 738-751 — TAMMS-Aviation User Manual (your bible for aircraft records at the section level).

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