Fixed-Wing Aircraft Airframe Mechanic, AV-8/TAV-8

0530 formation PT or personal workout. 0700 production brief — you are in the brief, not watching from the work center. You know the status of every open discrepancy in your section. 0800 CDI inspection queue — inspect the work packages your Cpls closed on the night check. ADB review before any signature. 0900 OJT session with the LCpl who is behind on Phase II checkpoints — scheduled last week, running today regardless of what else lands. 1030 FOD walk before launch. 1100 troubleshooting coordination on the aircraft with a recurring nozzle-system indication — you have read the troubleshooting procedure, know where the last replacement was made, and are working the next step with production control. 1300 FitRep draft for the Cpl whose anniversary date is next week. 1600 evening brief, section turnover prep. 1630 tool accountability and work center closeout.

The Sgt's week is driven by the production board, the CDI inspection queue, and the OJT tracking matrix for the section. Monday sets priorities. Phase inspection cycles determine which aircraft have active work packages and which Cpls are assigned. FitRep anniversary dates distribute across the calendar; start drafting two weeks out. QA surveillance audit schedule is published by the QA division — know when your section is scheduled and have documentation clean. PME commitments and Sergeant's Course scheduling are tracked by the unit career planner; get on the waitlist early. Friday afternoon is ADB review, tool audit, and administrative work.

CDI inspection authority on the Harrier at Sgt means the signature carries real technical and legal weight. Own NAMP Chapter 10 completely: what you are authorized to inspect, what requires QAR escalation, what requires maintenance officer involvement, and what the discrepancy documentation requirements are for a CDI-discovered quality escape. QA program interface is Sgt-level knowledge — how the QA division conducts surveillance audits, what a discrepancy trend analysis reveals about work center performance, and how the CDI record is reviewed during external audits. Harrier-specific Sgt-level technical depth: nozzle system rigging and inspection criteria, Pegasus engine bay hot-structure damage assessment, RCS bleed air system pressure and flow rate troubleshooting, LERX and LID scheduled inspection program management, and composite repair determination (field-level versus depot-level damage classification per the applicable structural repair manual). For cross-training candidates: F-35B STOVL system architecture — lift fan, three-bearing swivel nozzle (3BSN), roll post duct system — maps conceptually from Harrier nozzle and RCS knowledge; the Sgt who can articulate that connection in an F-35B cross-training interview is better positioned than one who cannot.

COMNAVAIRFORINST 4790.2 (NAMP) Chapters 10 and 11 — CDI and QAR programs in depth; as a CDI you are accountable to Chapter 10 in both directions. NAVAIR 01-AV8BB-2-2 — at Sgt the expectation is that you navigate to the applicable procedure without being told the chapter — know the hydraulic, flight control, and nozzle system structure well enough to find the task quickly. NAVAIR 01-AV8BB-6 — scheduled maintenance MRC deck; know the phase inspection requirements cold. NAVMC 2795 — Marine Corps FitRep and Counseling Record Manual; understand the relative value system and the MRO structure before you write your first Sgt-authored FitRep for a junior Marine. MCO 1610.7 — Performance Evaluation System; the performance traits are the framework your FitRep writing hangs on. MCWP 6-11 (Leading Marines) — the doctrinal foundation for Marine NCO leadership; read it before you write your first section-level FitRep.

Zero quality escapes on CDI inspections per QA audit cycle. All junior Marines in the section are on track with OJT checkpoints and the section chief knows the status of each without looking it up. FitReps for junior Marines submitted on time with specific, quantified language. SSgt composite score building: FitRep marks at the upper range, PME complete, leadership billet visible in the record. Cross-training nomination package submitted or a documented decision made about platform transition path. Physical fitness maintained at First Class across both PFT and CFT.

Countersigning a CDI inspection without physically verifying the work — accepting the mechanic's representation rather than conducting the actual inspection. A quality escape that traces to a countersigned CDI entry is a career-level event. Misinterpreting Harrier hot-structure composite delamination on a nozzle fairing as within-limits surface damage — thermal cycling creates subsurface delamination that tap-test reveals; a fairing that passes visual but fails tap-test is a depot-level repair item, not a field-level cosmetic fix. Failing to escalate a repeated systemic nozzle-system discrepancy trend to the QAR — if multiple aircraft in the squadron are generating the same nozzle bearing write-ups within similar flight-hour windows, the CDI who closes each one individually without flagging the trend to quality assurance is missing the systemic problem. Writing a corrective action in the ADB that describes what the task was, not what the actual condition of the system was — 'replaced actuator per MRC' is not a complete corrective action; document the measured values, the reason for replacement, and the post-installation functional check results.

The platform transition decision is the most significant career decision at this tier for 6252s. The choice: cross-train through the formal F-35B or F/A-18 pipeline (nomination required, takes time off the flight line, results in a dual-qualified credential) or remain Harrier-only in a shrinking fleet. The VSTOL knowledge transfer argument is real — Harrier nozzle and RCS experience maps to F-35B STOVL systems — and the F-35B program has prioritized former 6252 cross-trainees in some cycles. The QAR billet decision: if a QAR position opens in the airframe work center's QA division, pursue it. The QAR credential is the next tier above CDI and is required for competitive senior NCO packages. The civilian transition math at Sgt with CDI and Harrier qualification: NAVAIR depot support contractors and L3 Aviation are actively maintaining the remaining Harrier fleet and the specialized knowledge base commands a premium while the platform is in service.

VMA operational squadron Sgt at Yuma or Cherry Point: highest CDI inspection volume, most direct flight-line leadership pressure, primary assignment in the Harrier community. MALS Sgt: component-level bench maintenance leadership — technical depth on specific Harrier components (nozzle bearing assemblies, hydraulic actuators, bleed air valves) is greater, documentation standards are more demanding because MALS is the component maintenance authority. Training unit Sgt: instructor role possibility, more deliberate maintenance environment, direct influence on the quality of 6252s entering the fleet. MEU Sgt: most demanding logistically, most visible leadership opportunity — constrained parts and space, operational urgency, and ship-based VSTOL operations that test maintenance leadership in ways garrison cannot replicate. MEU is where CDI authority on the Harrier gets its hardest workout.

The exceptional Sgt 6252 runs a section where CDI inspections are clean, OJT is current, and junior Marines come to him with questions because they know he answers from the technical manual rather than from convenience. His FitReps for Cpls and LCpls are specific — 'nominated for CDI LOA ahead of schedule' or 'completed 14 of 15 Phase II OJT checkpoints in 90 days' — not generic trait language. He has introduced himself to the QA representative for the airframe work center by name, knows what the current discrepancy trend analysis shows for nozzle-system write-ups across the squadron, and has a plan for repeat discrepancies. His SSgt package is visibly building, and he has made a documented decision about cross-training that the career planner knows about.

SSgt is the first senior NCO tier and comes with program ownership, not just section leadership. The SSgt 6252 owns a maintenance program — CDI pipeline, NAMP compliance, phase inspection scheduling. QAR credential becomes effectively mandatory for competitive SSgt packages in the aviation maintenance community. FitRep language changes: senior NCO FitReps are evaluated against the senior NCO population and relative value marks are harder-won. The platform retirement is resolved by SSgt — you are either cross-trained and dual-qualified or you are a Harrier specialist with defined career horizon.