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USMC6432

Aircraft Electrical/Instrument/Flight Control Systems Technician, IMA

Performs intermediate-level maintenance on aircraft electrical, instrument, and flight control systems at the Intermediate Maintenance Activity (IMA). Repairs and tests components returned from organizational-level maintenance.

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Recruiter vs. Reality
What they tell you

Intermediate Maintenance Activity is where components go when the squadron can't fix them on the flight line. As a 6432 technician, you work at the IMA — the intermediate tier between organizational maintenance and the depot — specializing in aircraft electrical systems, flight instruments, and flight control components. You bench-test and repair the actuators, servos, gyroscopes, altimeters, airspeed indicators, hydraulic control units, and wiring harnesses that come off aircraft across multiple platforms. This is precision shop work: component-level fault isolation, bench test equipment operation, calibration, and return-to-service documentation. The IMA supports the entire wing, so you'll see parts from multiple aircraft types. Your repairs keep aircraft that would otherwise be grounded back in the maintenance pipeline, which makes you a force multiplier for every squadron the IMA supports.

What it's actually like

IMA is not glamorous — you won't be on the flight line watching jets launch. You'll be in a shop, on a bench, tracing faults through circuit boards and hydraulic actuators under fluorescent lights. That is a feature, not a bug, for the right person. The bench work requires genuine technical depth: you're not replacing components, you're repairing them, which means understanding why they failed and verifying they won't fail the same way again. Calibration standards are strict, documentation requirements are extensive, and a bad repair that makes it back onto an aircraft is a serious safety event. IMA shops can be high-tempo or stagnant depending on the wing's operational posture — feast or famine on workload. Career progression through IMA builds broad platform knowledge that transfers well, but you'll need to be deliberate about maintaining qualification currency if your shop doesn't see a particular component type regularly.

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Execute the Job — By Rank

How you actually run this job at each rank — what you do, what you drill, which manuals you own, and what good looks like. Written for the soldier, sailor, airman, Marine, or Guardian currently in the seat. Each rank deeplinks into the full Playbook deep-dive: time-blocked schedules, unit-type variations, career decisions, and the read on the next rank.

E1-E3Pvt/PFC/LCpl

You are the trainee on the shop floor, learning how IMA actually works — which is slower and more procedural than the flight line, and that's intentional.

What You Actually Do

Receive components tagged as "remove and replace" from flight-line maintainers. Log them into the IMA production control system, track their status through the repair cycle, and assist journeymen on bench repairs. You pull IETMs, gather consumables, and learn which faults are actually fixable at this level versus what gets shipped to depot. You clean and organize test equipment, assist with calibration prep, and slowly build familiarity with the ATE suites that do the diagnostic heavy lifting.

Key Skills to Drill
  • 01Work order documentation, IETM navigation, test equipment familiarization, basic electrical theory, soldering fundamentals, ESD precautions
Manuals & References
  • COMNAVAIRFORINST 4790.2 (NAMP), applicable MIM/IETMs for assigned aircraft systems, ATE operator manuals
Standards You Must Hit
  • Zero undocumented work. Every action logged in NALCOMIS. No calibration-expired equipment used on any component. ESD protocols followed without exception.
Common Technical Mistakes
  • Using test equipment past its cal due date because "it was fine last week." Signing off work you didn't actually perform. Skipping the fault verification step because the previous tech seemed sure of the diagnosis.
What Good Looks Like

You finish every work order with complete, accurate documentation before the shift ends — not reconstructed from memory the next morning. When you pull a component off the shelf you check cal dates before you plug anything in. When something doesn't look right in an IETM step you flag it to the journeyman instead of improvising.

Go Deeper at E1-E3
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E1-E3 Playbook →
E4Cpl

You are a working technician now — capable of running a bench repair from induction to final test on familiar components, and learning to trust the ATE results over your gut.

What You Actually Do

Perform bench-level repairs on electrical system components, flight instruments, and flight control actuators within your qual envelope. Use the ATE suite to isolate faults to the board or component level, replace failed parts per IETMs, and run acceptance testing before returning the component to serviceable status. You track your own turnaround times and understand why TAT matters — a grounded aircraft waiting on a component costs the squadron sorties. You start cross-training on additional aircraft systems beyond your initial qual.

Key Skills to Drill
  • 01ATE operation and interpretation, hydraulic test stand operation, IETM-driven fault isolation, solder and connector repair, NALCOMIS work order management, TAT awareness
Manuals & References
  • COMNAVAIRFORINST 4790.2, aircraft-specific MIMs/IETMs, ATE technical manuals, hydraulic test stand procedures, local SOP binders
Standards You Must Hit
  • All repairs verified by final acceptance test prior to RFI tagging. TAT tracked and briefed to production control. No component returned to service with an open discrepancy.
Common Technical Mistakes
  • Chasing a symptom the ATE already isolated because you don't trust the box. Replacing parts without running the full acceptance test sequence. Letting a work order sit because you're stuck and embarrassed to ask.
What Good Looks Like

You close work orders the same day when parts are available. When the ATE gives you a fault code you don't recognize, you look it up before replacing parts. Your paperwork reflects exactly what you did — not a cleaned-up version. Production control knows they can hand you a component and get a straight answer on whether it's fixable here or needs to go to depot.

Go Deeper at E4
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E4 Playbook →
E5Sgt

You are the senior technician on the bench and the first-line quality checkpoint — the person production control calls when something doesn't fit the expected fault pattern.

What You Actually Do

Handle the difficult or unusual repairs that exceed junior technician confidence — intermittent faults, components with prior repair history, anything the ATE is flagging inconsistently. You review completed work orders for accuracy before they leave the shop. You train junior techs on ATE operation, IETM interpretation, and the judgment calls that manuals don't cover. You interface with production control on parts availability and coordinate with supply when a component needs a depot-level repair order. You manage calibration schedules for assigned test equipment.

Key Skills to Drill
  • 01Advanced fault isolation, intermittent fault diagnosis, work order quality review, test equipment calibration management, depot coordination, junior technician development
Manuals & References
  • COMNAVAIRFORINST 4790.2, MALS supply chain SOPs, calibration program instructions, fleet campaign instructions for known defects on supported aircraft
Standards You Must Hit
  • Every work order reviewed before RFI tagging. Cal schedule current with zero overdue. Depot referrals documented with complete fault history so depot isn't starting from scratch.
Common Technical Mistakes
  • Signing off a junior's work order without actually reading it. Letting calibration schedules slip because the equipment "seems fine." Sending a component to depot without documenting all previous repair attempts.
What Good Looks Like

When a component comes in for the third time with the same fault, you pull the history before touching it. Your shop's cal schedule is current every week — not scrambled into compliance before an inspection. Junior techs know to bring you the weird ones because you'll work through it with them instead of just taking over.

Go Deeper at E5
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E5 Playbook →
E6SSgt

You are the shop chief in practice — managing production flow, setting quality standards, and translating maintenance officer priorities into daily shop execution.

What You Actually Do

Own the IMA shop's daily production cycle. Assign work orders to qualified personnel, track TAT on every open item, and brief production control on shop status. You identify bottlenecks — parts holes, equipment down for cal, personnel gaps — and solve them before they become officer-level problems. You conduct technical training, evaluate technician qualifications, and write evaluations that actually reflect performance. You liaise with the MALS supply chain on priority requisitions and with the supported squadrons on component demand forecasting. You ensure every quality escape gets an RCA and a corrective action — not just a note in the log.

Key Skills to Drill
  • 01Production control coordination, TAT management, quality escape investigation, supply chain interface, personnel qualification tracking, evaluations and counseling
Manuals & References
  • COMNAVAIRFORINST 4790.2 (especially IMA-specific chapters), MALS/wing production control SOPs, aircraft availability reporting systems
Standards You Must Hit
  • No component leaves the shop without documented quality review. TAT metrics briefed accurately — no massaging the numbers. Every technician's qual card current and accurate.
Common Technical Mistakes
  • Hiding TAT problems from production control until they become a brief item. Qualifying technicians on paper without watching them demonstrate the skill. Letting a quality escape pass without root cause because the schedule is tight.
What Good Looks Like

Production control trusts your TAT numbers because you've never sandbagged them. When a quality escape happens — and one will — you have an RCA in front of the maintenance officer within 24 hours with a corrective action that addresses the actual cause. Your technicians' qual cards reflect what they can actually do, not what would look good on a staffing report.

Go Deeper at E6
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E6 Playbook →
E7GySgt

You are the technical authority and institutional memory of the IMA — the person who knows which procedures are technically correct and which ones the wing has been doing wrong for years.

What You Actually Do

Oversee all IMA production for the supported aircraft systems across the wing. Coordinate with other IMA shops, MALS, and supported squadrons at the department-head level. You identify systemic maintenance problems — recurring component failures, patterns that suggest fleet campaign issues — and take them up the chain with data. You manage manpower allocation across shifts, mentor SSgts, and ensure the shop is ready for type, model, series changes when new aircraft come to the wing. You own the quality assurance program for the shop and interface with higher headquarters on maintenance policy questions.

Key Skills to Drill
  • 01Multi-shop coordination, systemic fault analysis, fleet campaign awareness, QA program management, cross-aircraft system expertise, policy interpretation
Manuals & References
  • COMNAVAIRFORINST 4790.2, applicable fleet campaign instructions, wing maintenance instructions, CNO/COMNAVAIRFOR maintenance policy messages
Standards You Must Hit
  • Systemic problems identified and escalated with data — not anecdotes. QA findings tracked to closure. No maintenance policy ambiguity left unresolved at the shop level.
Common Technical Mistakes
  • Treating a recurring fault as individual technician error when the data points to a systemic cause. Letting policy ambiguity persist because surfacing it means more work. Running the shop by feel instead of metrics.
What Good Looks Like

When three different squadrons are writing up the same component for the same fault over six months, you're the one who notices, pulls the data, and has a brief ready for the maintenance officer. Your QA program finds problems before outside inspections do. SSgts who work for you leave knowing how to run a shop.

Go Deeper at E7
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E7 Playbook →
E8-E9MSgt/1stSgt/MGySgt/SgtMaj

You are the senior enlisted leader shaping how this wing maintains aircraft — not through wrenches, but through standards, culture, and the credibility that comes from having done every job below you.

What You Actually Do

Set and enforce maintenance culture across the IMA and into the squadrons you support. Brief commanding officers and department heads on maintenance readiness, component availability, and systemic risks to aircraft availability. You identify leadership and training gaps and fix them before they produce a mishap or a maintenance departure. You engage with COMNAVAIRFOR, NAVAIR, and fleet readiness centers on policy, manpower, and equipment issues that affect the wing. For 1stSgt/SgtMaj billets, you own the human dimension — welfare, discipline, advancement, unit cohesion — while the maintenance GySgts own the technical execution.

Key Skills to Drill
  • 01Executive maintenance briefing, systemic risk identification, NAVAIR/FRC coordination, senior leader development, maintenance culture enforcement, cross-wing coordination
Manuals & References
  • COMNAVAIRFORINST 4790.2, CNO readiness policy, wing/MAW commanding general guidance, applicable NAVAIR airworthiness directives
Standards You Must Hit
  • Maintenance culture is visible and consistent — not just compliance theater before an inspection. Every serious quality escape gets a post-incident review that changes something. Senior enlisted across the wing understand the standards and enforce them without your presence.
Common Technical Mistakes
  • Confusing inspection-readiness with actual readiness. Allowing a culture where problems are hidden from officers rather than surfaced. Losing touch with what the E-4s and E-5s are actually doing on the bench.
What Good Looks Like

The wing's maintenance metrics don't spike before inspections — they look the same because standards are consistent. When NAVAIR issues a fleet campaign instruction, your shops have already identified the affected components and built the plan before the phone call comes. Junior technicians know that cutting corners gets corrected, not covered up, and they've seen it happen.

Go Deeper at E8-E9
Time-blocked daily schedule, unit-type variations, career decisions, full reading list with chapters — written for the soldier in this seat.
Full E8-E9 Playbook →
On the Outside

What this actually is in the real world

Your skills translate. Here's what civilian employers call this job — and what they pay.

Aircraft Mechanics and Service Technicians

Strong match
$75,020$49,820$106,150/yr median
Job market: Faster than average (6%)

Avionics Technicians

Related field
$77,350$55,730$106,730/yr median
Job market: Faster than average (6%)

Electrical and Electronics Engineering Technologists and Technicians

Related field
$63,640$40,870$98,510/yr median
Job market: Average (2%)

Salary data from the U.S. Bureau of Labor Statistics Occupational Employment and Wage Statistics program, retrieved Feb 2026. BLS.gov cannot vouch for the data or analyses derived from these data after the data have been retrieved from BLS.gov.

The Robot Read

How exposed is the civilian version of this job to AI?

Not a measurement of this MOS. Published labor-market research on the closest civilian occupation in our crosswalk — treat it as a signal, not a verdict.

Low ExposureModerate Confidence

Closest civilian match: Aircraft Mechanics and Service Technicians (close match)

Another sharp divergence, and a genuinely useful one: the 2013 model rated aircraft maintenance 71% computerizable, treating repetitive procedural work as automatable by future robotics. The 2023 LLM study rates it just 6% exposed — turning a wrench on a turbine engine is not a language task, no matter how good the chatbot gets.

This describes exposure for the civilian occupation, not a rating of this MOS, your unit, or your actual day-to-day duties. The matched civilian job is a close or related crosswalk, not exact.

MOS Pulse

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Reviews
Founding ReviewUnclaimed

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Zero reviews for 6432. Not because nobody has opinions — anyone who’s actually done Aircraft Electrical/Instrument/Flight Control Systems Technician, IMA is carrying a full magazine of them — but because nobody’s put theirs on the record.

So here’s the deal: the first approved review of every MOS becomes its Founding Review. Permanently badged, permanently first. Every person who looks up 6432 from now on reads it before anything else — including the recruiter’s version.

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FAQ

6432 Aircraft Electrical/Instrument/Flight Control Systems Technician, IMA — FAQ

Q01What does a 6432 do in the Marines?
Receive components tagged as "remove and replace" from flight-line maintainers.
Q02How long is 6432 training and where is it held?
6432 training is approximately 20 weeks of Advanced Individual Training (AIT) after Basic Combat Training, held at CNATT, NAS Pensacola, FL.
Q03What are the most common career-ending mistakes for a 6432?
Logging a work order wrong in NALCOMIS and not catching it before the WO closes is the cardinal sin — once that TAT entry is wrong, QA has to open a formal correction and someone's name is on the discrepancy. The second classic mistake is assuming a unit removed from the aircraft was only broken in the reported way; failure to perform a full bench-runup per the IETM before returning to service sends a partially-failed component back to the flight line
Q04What civilian jobs does 6432 translate to?
6432 maps most directly to civilian occupations including Aircraft Mechanics and Service Technicians. Translation quality varies by skill — see the Honest MOS Civilian Translation block for full O*NET matches and salary data.
Q05What's the career progression for a 6432?
E1 through E3 is school completion (Class C at Pensacola or Cherry Point, depending on platform), follow-on assignment to an IMA shop, and the grind toward your first CDI task qualifications. Most LCpls are working toward a Cpl pin and their first set of limited CDI sign-off authorities by the end of their second year — getting there cleanly is the entire job at this tier
Q06What's the recruiter not telling me about 6432?
IMA is not glamorous — you won't be on the flight line watching jets launch.
How does 6432 compare?
See side-by-side ratings, quality of life, and community takes.
Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards

Sources:Branch MOS catalog · DTMO pay tables · DoD/.gov benefits references · O*NET civilian career mapping · verified service-member reviews