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AETE4

Avionics Electrical Technician

E-4 (Specialist/Corporal) · Coast Guard

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

AET3 is the first paygrade where your signature certifies airworthiness. The ATTC pipeline qualified you to do the work; the air station will now find out whether you can document it correctly. The FAA AMT certificate under 14 CFR Part 65 is the credential that travels with you for the rest of your career — start the preparation for both Airframe and Powerplant written exams immediately after graduation, while the training content is fresh. The SWE cycle for AET2 does not wait for you to feel ready.

The Honest MOS Read
AET3 (Petty Officer Third Class) is the first rated paygrade in the AET pipeline, and it is a significant step. You came back from the ~52-week avionics apprentice course at the Aviation Technical Training Center (ATTC) in Mobile, AL with the crow sewn on your sleeve, and you reported to an Air Station where someone has already been told you are arriving. The AMO knows your ATTC graduation date. The AETC has seen your pipeline training record. The AET2 you are assigned to work under has already asked the chief what they should expect. The work at AET3 is supervised, but not hand-held. You perform avionics system operational checks on assigned aircraft per the applicable Aircraft Maintenance Manual and Maintenance Procedure Card (MPC) — autopilot systems, navigation systems (VOR, ILS, GPS integration), radar altimeters, HF/VHF/UHF communication radios, emergency locator transmitters, the integrated SAR sensor suites on the HH-65 or MH-60. You troubleshoot discrepancies from the aircraft logbook write-up using the fault isolation procedures in the maintenance manual and the wiring diagrams in the aircraft's electrical schematic manual. You run tool control inventories at the start and close-out of every maintenance package. And for the first time, you sign your own work. That signature is the central fact of AET3. COMDTINST M13020.1 is explicit about what it means: your name on a maintenance action form certifies that the work was performed correctly, by you or under your direct supervision, to the applicable maintenance procedure standard. The FAA regulatory framework amplifies this under 14 CFR Part 43 — the return-to-service entry you will eventually make on FAA-certificated aircraft carries federal legal weight. You are not yet signing that return-to-service entry independently as AET3, but the discipline that leads to that authorization begins with how you handle your AET3 signatures. The FAA Aviation Maintenance Technician (AMT) certificate is the career credential for this rating. The experience hours your ATTC pipeline generated are the foundation, but they alone do not give you the certificate — you must pass the Airframe and Powerplant written exams, and then complete the oral and practical examinations with an FAA-Authorized Testing Examiner. Most AET3s who pursue the A&P aggressively after ATTC complete both written exams within 12-18 months of graduation. The ones who defer the prep consistently fail to have the certificate when it would have mattered most — at the AET2 advancement slate, at the re-enlistment conversation, at the separation point where the civilian market is evaluating your record. The Servicewide Exam (SWE) for AET2 is the advancement gate. It runs in March and August. It is scored against the current bibliography the Coast Guard Institute publishes for the AET rating, and your final multiple includes your SWE score, your EER marks, and any award points. The AET3 who builds a study plan in the first month after returning from ATTC and works the bibliography across two SWE cycles is the one who advances on a competitive timeline. The one who starts studying 30 days before the March exam is the one explaining the timeline at retention.
Career Arc
  • 01Return from ATTC Mobile with AET rating badge — report to air station, receive shop assignment, begin supervised maintenance work on primary platform
  • 02First maintenance package sign-off — your signature on the MAF is a legal certification; the AET2 witnesses your first several packages and evaluates your documentation discipline
  • 03Shop qualification earned on first avionics or electrical system — the qual signed by the AMO-appointed examiner, recorded in the qualification folder, and visible on the ATTC transcript update
  • 04FAA AMT written examinations (Airframe and Powerplant) — target: both written exams passed within 18 months of ATTC graduation while training content is fresh
  • 05First SWE cycle (March or August following AET3 rating) — bibliography pulled, study plan built, exam taken; repeat the cycle for AET2 advancement
  • 06EER cycle 1 as AET3 — this is the first EER that includes rated-performance data; the marks and supervisor narrative set the trajectory for AET2 advancement
Common Screwups
  • ×Logbook or maintenance record falsification — signing a maintenance action form for work that was incomplete, not directly supervised, or partially performed. COMDTINST M13020.1 and 14 CFR Part 43 make this a federal documentation violation, not a miscommunication. The AMO finds it in the quality assurance audit, the AETC initiates a formal investigation, and the record is permanent. At AET3 this ends the career in the rating.
  • ×DUI or alcohol-related incident — the aviation rating operates in a small community and the AET3 who gets a late-night DUI loses the security clearance eligibility that some C-schools and future assignments require, receives a formal Page 7 on the record, and may be administratively separated depending on the pattern. The AETC knows by the next morning.
  • ×OPSEC breach — posting aircraft discrepancy information, specific sortie details, sensor configurations, or SAR case data on any non-official channel. Air station OPSEC is enforced as a matter of operational security because the Coast Guard's SAR and LE patterns are operationally sensitive. One documented incident generates a security report and a pattern-of-judgment finding.
  • ×Financial mismanagement that triggers a security concern — unpaid debts that generate creditor inquiries to the unit, garnishment of military pay, payday-loan spirals that reach the chief's awareness. The aviation community's clearance-adjacent billets require members to demonstrate financial responsibility, and the AETC hears about the debt collection call.
  • ×Integrity violation with the chain — any instance of providing false information to the AMO, the AETC, or the OIC about the status of a maintenance action, a qualification progress item, or a personal conduct matter. The aviation maintenance culture runs on the assumption that you tell the truth about what you signed. One documented integrity violation ends the SWE advancement discussion.

A Day in the Life

  • 0530-0600Wake, dress, prepare for morning quarters. As AET3, check the duty aircraft status board before muster — know which aircraft have open discrepancies and which inspections are on the morning schedule.
  • 0600-0630Morning quarters — muster, uniform inspection, pass-down from the AETC or duty AET1. Write down which maintenance packages you own today and who is working with you.
  • 0630-0700Shop opening — tool crib inventory with the duty AET3 or AET2. Sign the opening count. Stage GSE and test equipment for the day's primary package. Pre-read the MPC for the morning package before any aircraft access.
  • 0700-0900Primary maintenance package — avionics operational check or corrective maintenance on the duty aircraft. Work the procedure step by step, document in real time. Close-out the tool count when the package closes, not at the end of the workday.
  • 0900-0930FOD walk — ramp and hangar floor cleared. Sign the FOD log. Brief the AA on the walk standard if one is assigned to work with you today.
  • 0930-1130Secondary maintenance or qualification work — phase inspection segment on a down aircraft, connector reconditioning on a scheduled maintenance write-up, or system operational check on a second aircraft. Read the applicable CMM section before starting any connector-level work.
  • 1130-1230Lunch. Eat in the galley. The aviation shop is small enough that where you eat and who you eat with is noticed.
  • 1230-1400Afternoon maintenance window or FAA AMT study if the schedule is quiet. The AMT written exam prep works best in focused blocks — not scattered study but a dedicated chapter of the FAA-H-8083 series, a practice test section, and a review of the questions you missed. Keep the study materials at the workspace.
  • 1400-1530Parts follow-up, AMMS work order entries, calibrated test equipment returns to the calibration log. Brief the AA on any PQS task completed during the afternoon block — sign what you actually saw demonstrated.
  • 1530-1600End-of-day tool inventory — every item physically accounted for and returned to the crib. Sign the close-out log. Check the next day's maintenance schedule with the AET2.
  • 1600-1630Evening quarters or pass-down with the AETC. Carry-over maintenance status, weekend duty rotation, upcoming inspection windows.
  • 1900-2100SWE study or AMT written exam prep. Work the bibliography systematically. The SWE exam is in March and August; the monthly pace needed to cover the full bibliography means starting the week you pin AET3.

Weekly Cadence

The AET3's week runs on the air station's maintenance schedule, which is driven by the aircraft's phase inspection intervals and the duty aircraft rotation. Monday through Wednesday are typically the highest-tempo days for avionics shop work — phase packages are open, corrective maintenance from weekend operations is being actioned, and the AMO's daily maintenance brief drives the priority order. As the junior petty officer in the shop, your availability for maintenance packages is assumed to be 100% during the maintenance window; anything that pulls you off the maintenance schedule has to be coordinated with the AET2 in advance. Thursday and Friday tend to include more administrative close-out — work orders closed in the AMMS, qualification documentation updated, the weekly tool crib audit, and the SWE study plan review. The weekend duty section rotates through the petty officer population; AET3s stand duty section watches at a higher rate than first-class petty officers, and the weekend maintenance response for aircraft AOG (aircraft-on-ground for maintenance reasons) can generate weekend callouts. The FAA AMT exam prep and SWE study are off-duty time investments. The air station does not carve out study time on the maintenance schedule for junior petty officers. The AET3s who advance on a competitive timeline are the ones who made the decision that evenings and weekends are study blocks, not rest periods — at least for the 12-18 months it takes to pass both AMT written exams and work through the SWE bibliography.

Key Skills — How to Drill Each

  1. 01
    Perform avionics system operational checks on assigned platforms — autopilot, navigation (VOR/ILS/GPS), radar altimeter, comms, ELT
    Work through the operational check procedure in the MPC step by step, without skipping or combining steps, and document the result of each step in real time — not from memory after the procedure is complete. The AET2 watching your first operational checks is evaluating whether you know why each step exists, not just whether you can execute it. When a check fails, work the fault isolation procedure from the beginning of the applicable manual chapter, not from your best guess about the probable cause.
  2. 02
    Troubleshoot an avionics discrepancy from a logbook write-up through the fault isolation procedure to a corrective action
    The fault isolation procedure in the maintenance manual is not a suggestion — it is the defensible path. On every troubleshooting job, have the manual open to the applicable fault isolation chart before you touch anything. Work the chart to its conclusion before you consider substituting an LRU. The shop loses parts budget to technicians who swap components without completing the fault isolation sequence, and the aircraft sometimes comes back with the same write-up because the actual fault was never isolated.
  3. 03
    Wire bundle inspection, connector pin extraction/insertion, and connector reconditioning per the aircraft wiring manual standard
    Practice pin extraction and insertion with the correct tool on a scrap connector before you do it on the aircraft. Pin damage on a $40,000 avionics box is not a parts-cost problem — it is a maintenance record problem and an availability problem. Use the correct extraction tool for the connector family, follow the torque spec on the backshell, and inspect each pin visually before re-engagement. The connector that looks fine on initial inspection is the one the next flight discovers is intermittent.
  4. 04
    Pre-work and post-work tool control — every tool signed out, every tool returned before any package closes
    Never leave the close-out tool count to the end of the workday. Close the tool count when the maintenance package closes, every time. An open tool count at the end of the day is not a counting problem; it is a maintenance stop on every aircraft the shop touched. The AET2 watching your tool-control discipline is the same person writing your EER — the fact that your count has never come up short is the first paragraph of the input they are building.
  5. 05
    Maintenance action entry in the Aircraft Logbook and Aviation Maintenance Management System (AMMS) per COMDTINST M13020.1
    Never make a logbook entry from memory after the work is done. Write the discrepancy description, the corrective action, the technical directive reference, and the part number in real time or immediately at package close-out. The entry that a quality assurance auditor reads needs to be traceable to the specific work order, the specific MPC, and your specific signature — not a retrospective summary of what you think you did.
  6. 06
    Train non-rates on tool control, FOD discipline, and entry-level PQS tasks under the AET2's supervision
    Your signature on an AA's PQS line is your first personnel credibility transaction. Sign only what you have actually seen the AA demonstrate — not what you believe they probably know, not what they told you they did on a previous shift. The AET2 who trained you to that standard is the reason the qual book is trustworthy; maintain that standard on the names below yours.

Manuals & References — What Chapters Matter

  • COMDTINST M13020.1 — Coast Guard Aircraft Maintenance Manual
    You are now signing under this instruction. Chapter 2 (maintenance records — what a complete logbook entry requires, what a falsification violation means) and the platform-specific inspection and maintenance chapters for your assigned aircraft are the daily references. The AMO's quality assurance audits run against this instruction — know what a compliant entry looks like before your first audit cycle.
  • FAA Part 43 — Maintenance, Preventive Maintenance, Rebuilding, and Alteration
    Part 43.9 (required maintenance records) and 43.13 (methods, techniques, practices) govern every maintenance entry you sign on FAA-certificated aircraft. The return-to-service entry under 43.11 is what you are building toward with the AMT certificate. Read 43.9 carefully — the entry elements (description of work, reference to data, date, signature, and certificate information) are the standard your AMMS entries should already be meeting.
  • 14 CFR Part 65 — Certification: Airmen Other Than Flight Crewmembers
    Subparts D and E govern your AMT certificate eligibility and the Airframe and Powerplant knowledge test requirements. Read the experience requirements and the knowledge test subject areas — most of your ATTC training maps directly to the test subject areas. AET3s who pull the FAA knowledge test study guide within 90 days of ATTC graduation complete the written exams before the study content fades.
  • Platform-specific Aircraft Maintenance Manuals (AMM) and Component Maintenance Manuals (CMMs) — for your assigned aircraft
    The AMM for your platform's avionics system is the chapter-level technical reference you use for every operational check, fault isolation, and corrective action. The CMM for specific avionics boxes (the autopilot computer, the FMS, the radar altimeter) is the reference the journeyman tech needs when troubleshooting to component level. Get in the habit of reading the applicable manual section before performing any non-trivial maintenance action — not after.
  • AET Rating Knowledge bibliography for the SWE — current version from the CG Institute
    The SWE for AET2 is based on this bibliography. Pull it the week you pin AET3. Build a study plan that covers each publication in the bibliography before the March or August SWE — not in the 30 days before. AET advancement is competitive and cutting-score-driven; the member who worked the bibliography for 12 months beats the member who crammed for 30 days.
  • COMDTINST M1000-series — Coast Guard Personnel Manual, advancement sections
    The SWE eligibility requirements, the EER scoring criteria, and the final multiple calculation are in this manual. Read the advancement chapter so you understand what factors drive your SWE final multiple — it is not just the raw exam score.

Standards — How to Hit Each

  • Shop qualification signed on at least one avionics or electrical system on the unit's primary aircraft within 12 months of returning from ATTC
    Ask the AET2 specifically for access to the maintenance packages that hit your qualification system area. The qualification is not awarded for attendance — it is awarded for demonstrated performance on the tasks listed in the qualification standard. The AMO-appointed examiner who signs the qualification has to be able to defend the sign-off in a quality assurance audit. Make the sign-off defensible.
  • FAA AMT written examinations (Airframe and Powerplant) — both written exams passed within 18 months of ATTC graduation
    Start the prep within 30 days of returning from ATTC. The FAA Aviation Maintenance Technician Handbook series (FAA-H-8083-30 and -31) are the reference publications for both knowledge tests. Schedule the Airframe written exam first — the ATTC avionics curriculum has the most overlap with the Airframe subject areas. Complete both written exams before the oral/practical prep window opens.
  • SWE taken on cycle (March or August) with a bibliography-driven study plan in place from the first year
    The bibliography for the AET SWE is published by the Coast Guard Institute. Pull it, divide the publications by month, and work through each one with a study guide or practice test format. The AET rating is small — the cutting score threshold for AET2 can be demanding in competitive cycles. Check the current ALCGPSC advancement message for the most recent AET2 advancement cycle statistics; do not assume a cutoff based on prior cycles.
  • EER blocks at or above the unit average for rated AET3s — first EER sets the trajectory
    The AET2 writing your EER is using the same criteria the AETC will use to brief the OIC on your performance. Observable, measurable behavior. Show up before muster. Close maintenance packages clean. Give the AET2 something to write about — if nothing positive happened this EER period, that is information you need to act on before the next cycle.
  • PFT passed every cycle; body composition compliant with COMDTINST M1020.8 throughout the AET3 tour
    Air station and flight line maintenance is physically demanding. The maintenance bays are hot in summer and cold in winter, the access panels require climbing and kneeling, and extended phase inspections are exhausting. The PFT is the minimum standard — the actual physical demand of the job is higher. Treat PT as maintenance on the body you need to do this work.

Technical Mistakes — Concrete Consequences

  • Signing a maintenance action form for work you cannot fully account for — incomplete procedure, unwitnessed step, inferred corrective action
    COMDTINST M13020.1 is explicit and the FAA regulatory framework amplifies it: your signature on the maintenance record certifies that the work was done correctly, in full, per the applicable procedure. The quality assurance audit finds the gap between the procedure and the documented corrective action. The investigation traces to your signature. The finding is permanent on your record and the rating community is small enough that the AETC network knows within the week.
  • Substituting personal judgment for the fault isolation procedure — pulling the LRU first because 'it's probably the box'
    The shop orders an expensive LRU that may not be the failed component, the aircraft returns the same write-up on the next flight because the actual fault was in a connector or a wire segment the LRU swap did not address, and the maintenance record now shows a parts change that did not resolve the discrepancy. The AMO sees the re-open. The pattern of skipped fault isolation is visible in the quality assurance data.
  • Undocumented connector or wire bundle discrepancy — seeing something anomalous and not logging it because 'it was probably like that before'
    Your name is not on the previous entry, but it will be on the next one. If the aircraft generates a write-up on a connector you saw and did not log, the quality assurance inquiry asks who last worked in that bay. The answer is in the access-panel sign-in log, and that log has your entry. The missed documentation is an integrity issue, not a technical oversight.
  • Skipping SWE study cycle — missing the March or August exam entirely or treating preparation as optional
    AET advancement is competitive and the rating is small. Missing a SWE cycle does not pause your advancement clock — it moves you one cycle behind every AET3 who showed up. In a small rating where the difference between advancing and not is often a handful of final-multiple points, one missed cycle can represent an 18-month delay. The AMO and the AETC see the SWE participation record.
  • Treating FAA AMT prep as a future project — deferring both written exams past the 18-month post-ATTC window
    The FAA knowledge test prep is hardest when the training content is oldest. AET3s who defer past 24 months from ATTC graduation are re-learning material their first-year peers tested on when it was fresh. The A&P certificate matters at the AET2 advancement slate, at the C-school selection for advanced avionics training, and when you separate — the civilian aviation market treats the CG avionics experience very differently with the A&P than without it.

Career Decisions at This Rank

  • When to pursue FAA AMT written exams — immediately after ATTC or after the first SWE cycle
    Immediately after ATTC is the correct answer for most AET3s. The training content that maps to the Airframe and Powerplant knowledge tests is freshest in the 6-12 months after ATTC graduation. Deferring past the first SWE cycle extends the study burden — you are now preparing for two credential exams simultaneously instead of sequencing them. The exception: if your ATTC performance suggests gaps in specific knowledge areas (electrical systems, hydraulics, materials), close those gaps through supplemental study before testing. Failing the written exam delays the practical, and the practical requires scheduling time with an FAA examiner.
  • Re-enlistment at the first window — continue in the AET rating or evaluate separation options
    The first re-enlistment decision typically arrives around year 4, which is when an AET3 has been in the rating for roughly 2 years post-ATTC. At that point you should have a shop qualification or two on your record, at least one SWE cycle completed, and some signal on the FAA AMT trajectory. If the A&P is on the cert sheet and the EER is clean, the re-enlistment value is high — the credential is now attached to a rated track record that the civilian market values significantly. If the A&P prep has stalled and the advancement is not competitive, the honest evaluation is whether the next 4 years will change that trajectory or deepen it.
  • Advanced avionics C-school selection versus staying on the primary platform
    AET3s at some billets have access to manufacturer C-school slots and advanced avionics training opportunities (platform-specific avionics type training, search and rescue system certifications, avionics test equipment operator courses). These are career differentiators and they should be pursued when the opportunity arises. The AET3 who completes advanced training on the HF/SSB suite, the integrated SAR sensor system, or the autopilot certification course walks into the AET2 SWE cycle with a qualification depth the SWE bibliography study alone cannot replicate.
  • First duty station rotation request — stay at current air station or request a different platform
    Your first duty station determined your primary platform experience. If you are on an HH-65 station and have the opportunity to request a rotation to a MH-60 or HC-144 station, the platform breadth is a genuine career differentiator in the AET rating. Multi-platform qualification is one of the visible marks that distinguishes AET2 candidates on the EER. The caveat: requesting a transfer too early — before the shop qualification on your primary platform is solid — signals that you are prioritizing breadth over demonstrated competence. Stay until the first qualification is complete.

How the Seat Varies by Unit Type

  • Air Station (HH-65 Dolphin primary)
    The HH-65 Dolphin is the most widely operated rotary-wing platform in the Coast Guard inventory and the most common first-assignment for AET3s. The Fenestron tail rotor system and the Safran Arriel 2C2-CG engine integration create a distinct avionics and electrical architecture. FOD discipline on the Dolphin ramp is critical — the Fenestron duct is vulnerable to ingestion at ground level. The avionics shop on an HH-65 station is typically high-tempo because the platform's SAR and law enforcement mission set is demanding.
  • Air Station (MH-60 Jayhawk primary)
    The MH-60T Jayhawk has a significantly more complex avionics suite than the HH-65 — the integrated Telephonics APS-143 radar, the FLIR, the hoist system integration, and the IFF/SIF transponder architecture are all more involved. AET3s on an MH-60 station develop deeper troubleshooting capability faster because the platform complexity is higher. The practical examiner expectation for the FAA A&P practical is also higher on a platform with this level of integration.
  • Air Station (HC-144 Ocean Sentry or HC-27J Spartan)
    Fixed-wing avionics architecture is fundamentally different from rotary-wing — pressurization systems, different navigation sensor suites, different fuel system electrical interfaces, longer-duration flight profiles with corresponding avionics stress patterns. AET3s assigned to HC-144 or HC-27J stations have a narrower platform exposure but deeper knowledge of fixed-wing avionics integration. The FAA Airframe written exam maps closely to fixed-wing systems knowledge.
  • Aviation Training Center (Mobile, AL) / AVSC
    A small number of AET3s receive assignments to the ATTC or AVSC at Mobile as cadre or instructional support. This is a non-standard first assignment for an AET3 and it is unusual, but it exists. The instructional environment gives early exposure to the full platform range and the technical depth of the avionics curriculum, but it delays the hands-on air station maintenance experience that builds the practical qualifications.

What Good Looks Like at This Rank

The good AET3 is the petty officer the AET1 sends to close out a corrective maintenance package when the aircraft is turning in four hours — because the fault isolation was worked to the circuit, not guessed at, the logbook entry is going to be clean the first time, and the tool count is never in question. The AET2 knows this without having to check, because the pattern was established in the first 90 days after the kid returned from ATTC. The visible markers: Both FAA written exams are passed before the second SWE cycle. The shop qualification on the primary avionics system is signed and in the authorization folder. The non-rates below this AET3 know where their tools are because the AET3 checks before the package opens, not after. The SWE study plan is on the wall in the workspace — not because someone told them to put it there, but because they understand that advancement is a competition and they are choosing to compete. The AMO knows this AET3's name before the first advancement cycle posts — not because of a notable incident, but because the maintenance records are consistently clean, the re-open rate on their packages is zero, and the AETC mentioned the kid at the last weekly maintenance meeting as the one the shop can trust to work unsupervised on the systems they are qualified on. That reputation, built at AET3, is the one that determines whether the AET2 assignment is to the unit the member asked for or the one that was left over.

Preview — The Next Rank

AET2 (PO2) is the journeyman technician seat. The advancement from AET3 to AET2 typically represents 3-5 years of rated experience, and by the time you pin AET2 the FAA AMT certificate should already be on your cert sheet — not in preparation. The AET2 who shows up without the A&P is behind the shop standard from day one. What changes at AET2 is the depth of technical ownership. AET3 performed and documented maintenance under supervision. AET2 owns a system area — navigation systems, communications, search and rescue sensor integration, autopilot — and is the working technical authority for corrective maintenance packages on that system without direct supervision from a more senior tech. The fault isolation goes deeper, the component maintenance manual is a daily reference, and the re-open rate on your packages is a number the AMO tracks. The EER responsibility also changes. You will be writing the first round of inputs on the AET3s below you, and those inputs drive real advancement outcomes. The standard you apply to those inputs is the same standard the AET1 applies to yours — observable behavior, measurable performance, no inflation. The first time you inflate an EER input to make a marginal AET3 look good, you have eroded the credibility of every input you write for the next three years. Write honestly.
FAQ

AET E4 — Frequently Asked Questions

Q01What does a E4 AET (Avionics Electrical Technician) actually do?
You came back from the ~52-week AVSC / ATTC pipeline at Mobile, AL with the AET rating badge sewn on and reported to an Air Station as a working AET3.
Q02What's the most important thing to know as a E4 AET?
AET3 is the first paygrade where your signature certifies airworthiness.
Q03What does a typical day look like for a E4 AET?
Time-blocked day at the E4 AET rank tier: 0530-0600 Wake, dress, prepare for morning quarters. As AET3, check the duty aircraft status board before muster — know which aircraft have open discrepancies and which inspections are on the morning schedule, 0600-0630 Morning quarters — muster, uniform inspection, pass-down from the AETC or duty AET1. Write down which maintenance packages you own today and who is working with you, 0630-0700 Shop opening — tool crib inventory with the duty AET3 or AET2. Sign the opening count. Stage GSE and test equipment for the day's primary package.…
Q04What mistakes get E4 AET soldiers fired or relieved?
Logbook or maintenance record falsification — signing a maintenance action form for work that was incomplete, not directly supervised, or partially performed. COMDTINST M13020.1 and 14 CFR Part 43 make this a federal documentation violation, not a miscommunication. The AMO finds it in the quality assurance audit, the AETC initiates a formal investigation, and the record is permanent. At AET3 this ends the career in the rating;…
Q05What career decisions matter most at the E4 AET rank tier?
When to pursue FAA AMT written exams — immediately after ATTC or after the first SWE cycle — Immediately after ATTC is the correct answer for most AET3s. The training content that maps to the Airframe and Powerplant knowledge tests is freshest in the 6-12 months after ATTC graduation. Deferring past the first SWE cycle extends the study burden — you are now preparing for two credential exams simultaneously instead of sequencing them. The exception: if your ATTC performance suggests gaps in specific knowledge areas (electrical systems, hydraulics, materials),…
Q06What's next after E4 for a AET (Avionics Electrical Technician) in the Coast Guard?
AET2 (PO2) is the journeyman technician seat.
Q07What manuals and regulations does a E4 AET need to know cold?
COMDTINST M13020.1 (Coast Guard Aircraft Maintenance Manual) — the governing document for every maintenance action, logbook entry, and inspection. Your signature is under this manual now.; FAA Part 43 (Maintenance, Preventive Maintenance, Rebuilding, and Alteration) — the regulatory framework Coast Guard maintenance sits inside for FAA-certificated aircraft; understanding Part 43 is the foundation of the AMT certificate exam.;…

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