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GSEE5

Gas Turbine Systems Technician (Electrical)

E-5 (Sergeant) · Navy

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

GSE2 (E-5) is the first real section-leader tier. The GSE3s in your section learn the switchboard line-up from watching you. NEC 4326 should be on record or in pipeline. The eEVAL ranking at GSE2 determines whether you advance to GSE1 on the first attempt or wait — and the LCPO knows your number before the board does.

The Honest MOS Read
Gas Turbine Systems Technician (Electrical) Second Class (GSE2, E-5) is the rating's working senior enlisted tier. You are not yet the LPO on paper, but the GSE3s treat you like one — they watch how you run the switchboard line-up, they ask you questions about the EOSS emergency procedures before the drills, and they sign PQS items with you as the authority. That is the weight of the E-5 seat. You run a section of the electrical plant — the SSGTG division, the main switchboard section, or the propulsion control systems section on a DDG or CG. This is a real management responsibility, not a title. The PMS MRC compliance for your section's equipment is your number; the CHENG's engineering readiness brief includes your section's completion rate; when the TYCOM 3M inspector pulls your section's cards, your name is on the accountability chain. The GSE2 who lets his section drift on PMS compliance while the GSE3 below him manages the day-to-day is the GSE2 whose eEVAL reflects that someone else is doing his job. NEC 4326 should be on your record or actively in the C-school pipeline. If it is not, that conversation with the LCPO needs to happen this week, not next quarter. The NEC codes your record specifically for gas turbine electrical propulsion billets and is the primary differentiator at the GSE1 advancement ranking board. The GSE2 without a NEC pathway is visible — the right people notice, and not favorably. The EOOW relationship at GSE2 is different from GSE3. On DDGs where the EOOW billet is officer-only, you are the senior rated electrical watchstander — the watchstander the EOOW names by name when he needs someone specific in the Main Switchboard. On smaller combatants where the EOOW billet extends to E-5, you may be holding the EOOW qualification yourself. Either way, the EOOW knows your professional quality better than almost anyone else on the ship, and his input into your eEVAL carries weight. The GSE1 advancement cycle is competitive. The BIB for the current cycle is available from MyNavyHR/NETC. Build a study calendar with milestones the LCPO can verify. The eEVAL ranking at GSE2 is a quantified competition among every GSE2 in the command — your percentile position in that stack is the most visible number in your advancement package, and the LCPO knows it before the board does.
Career Arc
  • 01GSE2 pin-on via NWAE.
  • 02Section LPO responsibility assumed — PMS compliance and CSMP input for assigned electrical plant section.
  • 03NEC 4326 on record or active in C-school pipeline.
  • 04SW device pinned and current.
  • 05GSE1 NWAE prep cycle: BIB pulled, study log started, EAW clean.
  • 06First-class package mentoring conversation with LCPO — what does the record need to look like?
Common Screwups
  • ×Letting the section's PMS compliance drift while focused on individual watchstanding — the GSE2's job at this tier includes managing the section, not just performing excellently as an individual watchstander.
  • ×Skipping the NEC 4326 pipeline window — the GSE2 who gets to GSE1 without a NEC on record has a materially weaker advancement package.
  • ×DUI, NJP, or Article 15 — the eEVAL mark is permanent; the EOOW qualification conversation and the LCPO mentoring conversation both change immediately.
  • ×PRT or BCA failure during the eEVAL ranking period — physical readiness is a scorable item and the CHENG brief includes it.
  • ×Bypassing the LCPO to go to the CHENG directly on a maintenance or personnel issue — the engineering chain runs through the LCPO; the CHENG hears about it either way, and which path you chose becomes part of the first-class mentoring conversation.

A Day in the Life

  • 0515Up. Review section's PMS due list for today. Any MRC cards due that require pre-work materials staged?
  • 0530-0630Division PT. GSE2s lead from the front — the GSE3s in your section watch your standard.
  • 0700-0730Quarters. Confirm the day's MRC card assignments for your section. Brief your GSE3 on what is due today and what is expected by end of day.
  • 0730-0900Section maintenance execution. You may be executing your own MRC card or supervising a GSE3 on his. Both are your responsibility.
  • 0900-1100Electrical plant watchstation preparation if on the next rotation, or continued maintenance and CSMP input for the monthly brief.
  • 1100-1200Review GSE3 PQS progress in your section. Walk through any pending line items before lunch.
  • 1200-1300Lunch. Underway: eat in the watchbill gap.
  • 1300-1530Section brief input preparation for the weekly engineering brief. NWAE BIB study on low-maintenance days.
  • 1530-1700End-of-day PMS log verification. Confirm all today's MRC cards are documented in the 3-M system. Flag any late cards to LPO before he asks.
  • 1800-2200In port: liberty. Underway: watch rotation, senior rated electrical watchstander for your section of the plant.

Weekly Cadence

The GSE2's week is structured by the section's PMS schedule and the monthly engineering readiness brief cycle. Monday is always a planning day — review the week's MRC cards for your section, confirm material availability, assign GSE3s to specific cards, and identify anything requiring a work authorization or CHENG deviation approval. Get those authorizations initiated Monday so they do not bottleneck Thursday. Tuesday through Thursday are execution days. Cards are worked, documented, and signed. Your job on execution days is a combination of senior watchstander and supervisor — you may be standing SSGTG or Main Switchboard watch during part of the day and supervising maintenance the rest. The GSE2 who can manage both simultaneously without either one suffering is the one who advances to GSE1. Friday is the administrative day and the brief prep day. PMS compliance numbers verified, CSMP input drafted, watchstander qual currency checked, and the NWAE study log updated for the week. The GSE2 who arrives at the Monday brief with Friday's prep already done is consistently ahead of the cycle.

Key Skills — How to Drill Each

  1. 01
    Stand the senior rated electrical watchstation during a real underway and execute EOSS emergency procedures without EOOW coaching.
    At GSE2, the emergency procedure execution is not just procedurally correct — it is efficient. The EOOW calls your name because he knows you will isolate the affected bus, report in correct format, execute the emergency steps, and prevent cascade without requiring his hand-holding through each step. Drill the casualty scenarios with your section before every underway to keep the muscle memory current, not just fresh from the last qualification board.
  2. 02
    Manage PMS compliance for your section: MRC cards, CSMP input, due-date tracking, monthly brief to CHENG.
    Build a personal tracking spreadsheet for your section's MRC cards — due date, assigned sailor, current status. Run your own spot-check weekly. When the monthly engineering brief comes around, your numbers should be already in your head before the LPO asks. The section supervisor who has to look up his own section's compliance percentages in front of the CHENG is the one the CHENG looks at when he is deciding who gets the mentoring time.
  3. 03
    Run an electrical-plant maintenance evolution as the senior GSE: tag-out package, NAVSEA tech-manual compliance, hazmat controls, restoration to EOSS-ready condition.
    The evolution starts before you pick up a tool. Work authorization, applicable NAVSEA technical manual volume pulled and bookmarked, tag-out initiated with originator accountability, authorized worker list current, hazmat requirements identified and pre-positioned. The GSE2 who treats the paperwork as a constraint is the GSE2 whose tag-out has an error at the worst possible moment. Treat the pre-work as the professional discipline it is.
  4. 04
    Mentor a GSE3 from raw PQS to first-watchstander qualification.
    The most effective mentoring at this rank is observational — give the GSE3 the opportunity to perform the evolution with you watching, ask the questions the board will ask, and sign only when you would personally bet that the GSE3 knows the system. The board that finds gaps in your GSE3's qualification reflects on your signature. Teach it right.
  5. 05
    Write the section's input to the engineering readiness brief — clean enough the CHENG presents it without rewriting.
    The engineering readiness brief input format is defined by the division officer. Learn it and own it. PMS completion percentage, open CSMP work orders with estimated completion, watchstander qual currency (who is qualified, who is working toward qual, who is overdue), NEC pipeline status — each item quantified, not described. 'Good' is not a briefable number. '94% PMS completion, 2 cards overdue with completion estimate' is.

Manuals & References — What Chapters Matter

  • NAVSEA S9AA0-AB-GOS-010 — LM2500 Technical Manuals, SSGTG electrical volumes
    At GSE2 you are teaching from these volumes, not just executing procedures from them. Know the troubleshooting flow charts for SSGTG fuel-control electrical faults and generator output anomalies well enough to walk a GSE3 through them without opening the book. The GSE2 who has to look up basic fault logic in front of the EOOW is not building the reputation the first-class package needs.
  • OPNAVINST 4790 series — 3M / Planned Maintenance System policy
    At section-supervisor level, you need to understand the 3M policy at the management tier — how CSMP work orders are initiated, what a deviation authorization requires, what the TYCOM spot-check evaluates specifically. The policy is not long; read it once, reference it when a question comes up, and know the answers before the LCPO asks.
  • OPNAVINST 3540.6 series — Engineering Certification program
    Your division's watchstander qualification currency, PMS posture, and EOSS competency feed the ship's engineering certification cycle. Understanding how CART, DEAST, and INSURV evaluations work gives you the context for why the standards you are enforcing at section-supervisor level matter at the ship level.

Standards — How to Hit Each

  • NWAE for GSE1 prep documented on LCPO's timeline; EAW clean; BIB study log defensible.
    Show the study log to the LCPO proactively — before he asks. The GSE2 who presents a structured study plan with completed sections checked off is in a materially different conversation with the LCPO than the one who says 'I've been studying.' Bring the BIB, show the annotated sections, state your milestone calendar.
  • NEC 4326 awarded or actively in pipeline.
    If NEC 4326 is not yet on record, the packet needs to be in motion. Initiate the career counselor conversation, pull the current NAVADMIN for quota, and document the timeline in writing so the LCPO can track it. The paper trail of 'I asked and here is the answer' is more valuable at the eEVAL board than 'I am planning to ask.'
  • PMS completion rates for section at or above command average every cycle.
    Track it weekly, not monthly. A PMS section that falls behind in weeks three and four of the month cannot fully recover in week five. The GSE2 who spots the deficit at week two and escalates to the LPO for additional resources is the one the CHENG hears about from the LPO; the one who discovers the deficit the day before the brief is the one the CHENG hears about from the DCA.

Technical Mistakes — Concrete Consequences

  • Letting a GSE3 sign his own MRC card without spot-checking the work.
    The INSURV inspector pulls your section's cards and asks the GSE3 who signed them to walk through the procedure — when the GSE3 cannot demonstrate knowledge of a step he signed off, the finding cites the section supervisor, not the GSE3. The CHENG's post-inspection debrief includes which section the finding came from.
  • Logging an out-of-limit electrical parameter as in-limits because 'it was on the edge.'
    The EOOW and CHENG read the engineering logs during every casualty investigation — every one. A false log entry at GSE2 is not a counseling and a warning; it is the end of the advancement conversation for the cycle it occurs in, and the mark follows the record.
  • Running an electrical maintenance evolution without completing the tag-out package.
    One re-energized bus or prematurely operated breaker during an active evolution is an injury, a JAGMAN, and a career-defining event for the senior GSE on the job — and at GSE2, the senior GSE on the job is you.

Career Decisions at This Rank

  • NEC 4326 pipeline — if not yet on record, initiate this cycle.
    The NEC 4326 is the primary differentiator at the GSE1 advancement ranking board. GSE2s who reach the GSE1 board without an NEC on record are competing with a thinner package than their peers. The C-school pipeline requires a quota, which is governed by the current NAVADMIN for source-rating availability. If the quota is not available this cycle, document the attempt and the timeline — the paper trail of having initiated the conversation is itself useful eEVAL material.
  • EOOW qualification pursuit on small combatants where the billet extends to E-5.
    On destroyers and small combatants where the EOOW billet is available to qualified E-5s, pursuing the qualification at GSE2 puts the credential on the record a full tour before the GSE1 competing for the Chief board who skipped it. The EOOW qualification is the single most career-differentiating qualification a surface GSE can hold below E-7. If your hull allows it, pursue it aggressively.
  • Shore duty or sea-duty continuation at the next duty station.
    GSE2s typically have a sea-duty rotation and shore-duty rotation in their career arc. Shore duty billets for GSEs include NAVSEA technical authority cells, training commands (instructors at SWES), TYCOM assessment teams, and recruiting duty. The operational tempo is lower, the family stability is higher, and the professional development is different. The tradeoff is a reduced watchstanding and maintenance experience accumulation rate. For GSE2s who are burning out on the operational tempo, shore duty is often the right call — but the NEC and SW device should be on the record first.

How the Seat Varies by Unit Type

  • DDG-51 — high-tempo surface combatant, primary GSE billet
    The GSE2 on a DDG is the day-to-day section leader with full watchstanding tempo, frequent deployments, and the highest density of peer GSE2s to compete against at the advancement ranking board. The experience accumulation is the highest in the surface fleet; so is the competition.
  • NAVSEA technical authority or TYCOM engineering assessment team (shore duty)
    Shore billets for GSE2s are available but competitive. A NAVSEA gas turbine technical authority billet or TYCOM engineering assessment team position provides different experience — writing technical documentation, conducting assessments, and developing system expertise at a level that ship operations do not allow. The career broadening is real, but the watchstanding currency requires deliberate maintenance during a shore tour.
  • Surface Warfare Engineering School (SWES) instructor billet
    GSE2 instructor billets at SWES are high-visibility assignments where every student GSE you train is a direct product of your professional standard. The eEVAL profile at an instructor command is different from a ship — the metrics are student pass rates and curriculum development, not PMS compliance percentages. The career broadening is valuable if the NEC and sea-duty watchstanding record is already established.

What Good Looks Like at This Rank

The good GSE2 is the petty officer the EOOW calls by name when the Main Switchboard needs someone during a casualty drill — not because everyone else is busy, but because this GSE2 is the one the EOOW trusts to execute the emergency procedure correctly the first time. His section's PMS numbers are clean at the monthly brief. Not clean because he briefed around the problems, but clean because he spotted the drift in week two and fixed it before the brief. The CHENG's question 'any issues in the GSE section?' gets 'no open issues, one card pending work authorization expected Tuesday' — a number, not reassurance. His GSE3 signed his fifth PQS item last week. The board questions that GSE3 at the qualification review come back answered correctly. When the LCPO asks who taught that watchstander, the answer is this GSE2, and the LCPO nods. The eEVAL for this GSE2 ranks him in the top third of the command's GSE2s. The LCPO has already told him what the first-class package needs to look like. The NEC 4326 is on the record. The SW device is pinned. The study log for GSE1 NWAE is annotated through Section 4.

Preview — The Next Rank

GSE1 (E-6) is the LPO. At GSE1, the engineering brief to the CHENG is yours, the Chief board packet conversation with the LCPO is present-tense, and the GSE2s and GSE3s watch how you own the electrical plant the way you used to watch your LPO. The weight of the division's PMS compliance, CSMP posture, and eEVAL cycle is yours. The gap between GSE2 and GSE1 is the gap between 'section leader accountable for a section of the electrical plant' and 'division LPO accountable for the entire electrical engineering division.' At GSE1, when a GSE2 in your division makes a PMS error, your name is in the conversation first. On small combatants where the EOOW billet extends to E-6, the GSE1 who qualifies EOOW is in a materially different position at the Chief selection board than the one who did not. That qualification is worth pursuing aggressively. If you did not get it at GSE2, get it at GSE1.
FAQ

GSE E5 — Frequently Asked Questions

Q01What does a E5 GSE (Gas Turbine Systems Technician (Electrical)) actually do?
You run a section of the electrical plant — the SSGTG division, the main switchboard section, or the propulsion control systems section on a DDG or CG.
Q02What's the most important thing to know as a E5 GSE?
GSE2 (E-5) is the first real section-leader tier.
Q03What does a typical day look like for a E5 GSE?
Time-blocked day at the E5 GSE rank tier: 0515 Up. Review section's PMS due list for today. Any MRC cards due that require pre-work materials staged?, 0530-0630 Division PT. GSE2s lead from the front — the GSE3s in your section watch your standard, 0700-0730 Quarters. Confirm the day's MRC card assignments for your section. Brief your GSE3 on what is due today and what is expected by end of day, 0730-0900 Section maintenance execution. You may be executing your own MRC card or supervising a GSE3 on his. Both are your responsibility,…
Q04What mistakes get E5 GSE soldiers fired or relieved?
Letting the section's PMS compliance drift while focused on individual watchstanding — the GSE2's job at this tier includes managing the section, not just performing excellently as an individual watchstander; Skipping the NEC 4326 pipeline window — the GSE2 who gets to GSE1 without a NEC on record has a materially weaker advancement package; DUI, NJP, or Article 15 — the eEVAL mark is permanent; the EOOW qualification conversation and the LCPO mentoring conversation both change immediately
Q05What career decisions matter most at the E5 GSE rank tier?
NEC 4326 pipeline — if not yet on record, initiate this cycle — The NEC 4326 is the primary differentiator at the GSE1 advancement ranking board. GSE2s who reach the GSE1 board without an NEC on record are competing with a thinner package than their peers. The C-school pipeline requires a quota, which is governed by the current NAVADMIN for source-rating availability. If the quota is not available this cycle, document the attempt and the timeline — the paper trail of having initiated the conversation is itself useful eEVAL material;…
Q06What's next after E5 for a GSE (Gas Turbine Systems Technician (Electrical)) in the Navy?
GSE1 (E-6) is the LPO.
Q07What manuals and regulations does a E5 GSE need to know cold?
NAVSEA S9AA0-AB-GOS-010 — LM2500 Technical Manual series for the SSGTG and gas turbine electrical packages; you teach from these volumes, not just follow them.; NSTM Chapter 300 series — Electric Plant; Chapter 320 — Switchboards; Chapter 430 — Propulsion Control Systems; own the chapters governing your assigned machinery.; EOSS, ship-specific — you teach it; the EOOW quotes the emergency procedures back at you in a casualty drill, and that is the test.

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