Fixed-Wing Aircraft Airframe Mechanic, F/A-18

New airframe mechanic, still learning what half the panels on the jet actually do

Remove and install access panels, fairings, and covers until you can do it blindfolded. Assist on scheduled phase maintenance under CDI supervision — you hand tools, you hold parts, you learn the jet from the outside in. You'll torque fasteners, safety-wire fittings, and chase corrosion on the undercarriage with a wire brush and chemical treatment. A lot of your day is completing Maintenance Action Forms and making sure every action is documented to NAMP standards before the CDI signs it off. You will also serve as a collateral duty in daily line operations: moving aircraft, operating ground support equipment, and standing the occasional FOD walk in the rain.

• 01Panel removal/installation, torque and safety-wire procedures, corrosion treatment basics, MAF documentation, ground support equipment operation

• —COMNAVAIRFORINST 4790.2 (NAMP), MIM for F/A-18 airframe (H6B series), squadron QA instruction

• —Zero undetected discrepancies on assigned tasks; every MAF closed properly with correct man-hours and material; no FOD incidents attributed to your work area

• —Over-torquing fasteners on composite skin panels — carbon fiber does not forgive. Forgetting to log a discrepancy because it "looked minor." Signing off a job you did not personally complete or verify.

A PFC who can remove and reinstall the aft fuselage access panels solo, with correct torque, safety wire dressed properly, and a clean MAF — that is someone ahead of schedule. The ones who make E-4 fast are not the strongest; they are the ones who never have to be told to look something up before they touch it.

Working toward CDI qualification — the credential that changes your entire value to the squadron

You are executing scheduled and unscheduled maintenance on the F/A-18 airframe with increasing independence. Flight control surface rigging — ailerons, flaps, rudders, stabilators — becomes your bread and butter. You will perform and document landing gear functional checks, canopy and ejection seat interface inspections, and fuel cell access work. You are studying hard for CDI qualification: learning every applicable MIM, demonstrating procedures to QA inspectors, and getting signed off task by task. Until you hold CDI, every job you complete still requires an inspector's signature — which means your relationship with the CDIs and QA shop directly affects how fast you can turn maintenance. You also start picking up collateral duties: maybe Confined Space Entry, maybe FOD prevention program assistant.

• 01Flight control rigging, landing gear inspection and functional check, canopy/egress system inspections, fuel cell access procedures, CDI qualification program progress

• —COMNAVAIRFORINST 4790.2 NAMP, MIM H6B-series, squadron CDI qualification instruction, applicable MRCs

• —CDI qualification completed NLT end of first operational deployment cycle; zero write-ups on work you completed and CDI-inspected; all MAFs closed with accurate documentation

• —Rushing CDI qualification to check a box without actually understanding the standards. Misrigging a flight control surface and not catching it in functional check. Assuming the previous mechanic's work was correct without verifying.

A Corporal who gets CDI qualified six months into their first fleet tour and immediately starts turning work at the same quality level as the senior Marines — that person is on a short list. CDI is not a checkbox; it is proof that QA trusts you to catch your own mistakes and everyone else's.

CDI-qualified mechanic running jobs and starting to lead other mechanics on the deck

You are now a CDI, which means you inspect finished work and sign the MAF — your signature is on the line when that jet flies. You lead small maintenance teams on phase maintenance events: organizing the work package, assigning tasks by qualification level, and ensuring every step is completed in sequence. You execute structural repairs: composite patch work, rivet replacement, skin crack assessment, and chemical film application on aluminum structure. You support NDI (non-destructive inspection) ops by prepping surfaces and interpreting basic findings with NDI-qualified personnel. You are also the primary interface between junior Marines and the QA shop — you translate discrepancy write-ups into coherent work orders and push back when a job is not documented correctly. You mentor LCpls and Cpls through their own CDI qualification paths.

• 01CDI inspection authority, composite and metal structural repair, phase maintenance work package execution, NDI prep and basic interpretation, junior Marine mentorship

• —COMNAVAIRFORINST 4790.2, MIM H6B-series, MIL-HDBK-6870 (composite repair standards), NAVAIR 01-1A-1 (aircraft structural repair), squadron QA instruction

• —Zero escapes on CDI-inspected work; structural repairs meet applicable engineering disposition; Marines you supervise are progressing through qualification programs on timeline

• —Signing off a repair you did not personally witness because you trusted the junior Marine. Performing a composite repair without checking the applicable engineering disposition first — not every crack gets a standard patch. Letting MAF documentation slide because ops tempo is high.

A Sergeant who runs a six-jet phase package with two junior mechanics, closes every MAF clean, catches a crack in the aft fuselage bulkhead that was not on the discrepancy list, and gets an engineering disposition initiated before the jet goes back to the flight schedule — that is what good looks like at this tier.

Deck plate leader and subject matter expert; the person QA calls when something is not in the MIM

You own the airframe work center as its senior technical authority and deck-plate supervisor. You assign, oversee, and inspect complex maintenance beyond standard scheduled events: major structural damage assessments, fuel cell entry and repair operations, major component removals (horizontal stabilator, vertical stabilizer, wing panels), and flight control system functional tests post-repair. You interface directly with the Maintenance Officer and QA Officer on discrepancy dispositions, engineering requests, and out-of-limits findings. You develop and monitor your Marines' qualification training plans. You stand Maintenance Control watch rotations and write daily maintenance schedules. With the F/A-18 pipeline shrinking and F-35 growing, you are also starting to navigate what transition means for your Marines' career paths and your own. You will likely support MALS-level periodic maintenance if deployed to a large hub.

• 01Structural damage assessment and engineering disposition coordination, major component removal/installation, fuel cell operations, Maintenance Control watch standing, workforce qualification management

• —COMNAVAIRFORINST 4790.2, NAVAIR 01-1A-1, applicable SRCs and engineering dispositions, MALS work order system, wing QA directives

• —Work center qualification coverage allows full mission capability across all assigned maintenance tasks; zero repeat discrepancies on structural repairs; all Marines progressing toward or holding required qualifications for their billet

• —Accepting an engineering disposition from depot that does not match actual damage extent. Keeping a marginal Marine in a CDI role because replacing them is inconvenient. Letting qualification training documentation drift during a high-OPTEMPO period — it will not catch up on its own.

An SSgt who walks into an unscheduled structural repair, correctly characterizes the damage, gets an engineering disposition in hand before the jet is released, trains two Sergeants through the repair process simultaneously, and closes the event with clean documentation — that person runs the best work center on the flight line.

Senior SNCO shaping maintenance culture, qualification programs, and squadron-level airframe readiness

You are the GySgt of the Airframe shop or holding a broader production/QA SNCO billet at the squadron or MALS. Your work is less wrench-turning and more ensuring the systems that produce correct maintenance are functioning: qualification records are current, CDI programs have no gaps, and your Sergeants are running work centers with the same standards you built. You interface with the Maintenance Officer, QAO, and neighboring shops on complex multi-shop discrepancies — when a structural repair requires coordination with hydraulics, egress, and avionics, you are the integrating authority. You review and approve engineering disposition requests before they go up the chain. You advise the CO and Maintenance Officer on airframe readiness trends, corrosion program health, and manpower impacts. As the F/A-18 fleet shrinks, you are actively managing the institutional knowledge problem: experienced mechanics are separating or converting to F-35, and you are the one figuring out how to keep standards from degrading.

• 01Qualification program management, multi-shop maintenance integration, engineering disposition review, readiness trend analysis, corrosion program oversight, senior leader advisory

• —COMNAVAIRFORINST 4790.2, NAVAIR 01-1A-1, MALS production directives, wing QA instructions, applicable COMMAVFORinstructions

• —Airframe shop qualification coverage is never mission-limiting; no systemic escapes in CDI program; readiness reporting accurately reflects true maintenance state with no sugar-coating

• —Letting a junior SNCO run a marginal CDI program because confronting it creates friction. Accepting "we have always done it this way" as a reason to skip an engineering review. Failing to document institutional knowledge before experienced mechanics separate — it walks out the door with them.

A GySgt who inherits a shop with three expired CDI qualifications and a corrosion program that has not been audited in two years, fixes both within 90 days without losing a single maintenance commitment, and builds a qualification matrix that the next GySgt can actually use — that is the standard.

Senior enlisted leader for aviation maintenance; setting policy, standards, and culture across the wing

At MSgt and above in the aviation maintenance community, you are either a wing-level or group-level QA inspector, a senior SNCO in a MALS production control billet, or holding a 1stSgt/SgtMaj billet where your technical background informs how you lead Marines through the operational demands of a flight line. Wing QA inspectors at this level run formal evaluations of squadron maintenance programs — they are the last internal check before a fleet-wide safety of flight directive. MGySgts in senior technical roles advise on platform transition policy: as the Marine Corps completes its F/A-18 to F-35B transition, there are real decisions about how legacy airframe expertise is preserved, retrained, or retired. You testify to readiness. You write and review instructions. You are the person a young Sergeant calls when a discrepancy is so unusual that no one in the squadron has seen it before. Your job is to know, or know exactly who does.

• 01Wing-level QA evaluation, platform transition advising, maintenance program policy development, senior enlisted leadership across aviation maintenance specialties, institutional knowledge preservation

• —COMNAVAIRFORINST 4790.2, applicable MARADMIN and MCO guidance on F-35 transition, wing and group maintenance instructions, aviation safety of flight directives

• —Squadron maintenance programs you evaluate meet NAMP standards with no uncorrected systemic findings; Marines in your span of influence have clear qualification pathways even as the platform transitions; your recommendations on readiness and policy are trusted because they are accurate

• —Letting nostalgia for the Hornet cloud judgment about where resources actually need to go as F-35 expands. Treating wing QA evaluations as a performance review for the squadron CO rather than a genuine safety function. Allowing your own deep technical expertise to become a crutch — your job now is to build other experts, not to be the only one.

An MGySgt who runs a wing QA evaluation, finds three systemic documentation failures in two squadrons, writes findings that are specific enough to be immediately actionable, follows up 60 days later to confirm correction, and does all of it without making enemies — that is what senior enlisted mastery of this community looks like. The jet is just the context. The product is the Marines who maintain it correctly after you are gone.