←Back to 7011 Expeditionary Airfield Systems Technician — overview, pay, training, civilian translation, reviews
7011E1-E3
Expeditionary Airfield Systems Technician
E-1 to E-3 (Junior Enlisted) · Marines
HEADS UP
You will spend more time covered in JP-8 and elbow-deep in hose assemblies than you ever will near an actual aircraft. That is the job. If you expected to work on jets, you enlisted as the wrong MOS — you are the one who makes the runway safe for jets to land on. The distinction matters because the work is unglamorous, physically brutal, and absolutely critical. A Marine who half-asses an arresting gear rigging is not someone who cut a corner on paperwork; they are someone who could put an aircraft and pilot in a ditch.
The Honest MOS Read
MOS 7011 is one of the least-discussed, most physically demanding technical jobs in Marine aviation. You are assigned to a Marine Wing Support Squadron — not a flight line, not an air wing headquarters, but the unit that deploys to dig airfields out of bare dirt and make them functional. At E1-E3, your world is FARE fuel systems, SALS-J lighting, and BAK-series arresting gear. You learn by doing, which means you will make mistakes under the watchful eye of a Corporal who has already made the same ones. The systems themselves are not conceptually complex, but the consequences of getting them wrong are severe enough that precision becomes habit or you get removed from the section. The FARE system exists to move aviation fuel from a tanker or bladder farm to aircraft without contaminating it. That sounds simple until you realize that FSII contamination or water ingestion in JP-8 can flame out an engine, and the technician who ran a passing check on a contaminated sample owns that outcome. BAK-12 and BAK-14 arresting gear have engagement geometry requirements tied to specific aircraft types and gross weights — rigging a purchase tape at the wrong tension for the wrong aircraft type is not an administrative error, it is a potential mishap. You will be on your feet for 12-hour shifts in heat, mud, and darkness during field exercises, moving equipment by hand because vehicles can't get to where the airfield is going. You will be voluntold for working parties that have nothing to do with your MOS. You will pull security in addition to your technical duties. The Marines who thrive here are the ones who get genuinely curious about why the systems work the way they do — they read the NAVAIR publications voluntarily, they ask their NCOs technical questions, and they treat fuel contamination checks as a personal standard rather than a checkbox. The Marines who wash out of the MOS or get recycled into general support billets are the ones who treat precision as optional when the pressure is on.
Career Arc
E1-E3 lifecycle: MOS school at MCAS Cherry Point or formal fleet training pipeline, then assignment to an MWSS (Cherry Point, Miramar, Kaneohe Bay, Iwakuni). First 12-18 months is supervised execution — you touch nothing solo until an NCO signs off. First field exercise or deployment workup is where theory meets reality. By LCpl you should be independently running FARE contamination checks and SALS-J setups under observation. Promotion to Cpl is the inflection point — start building the NCO fundamentals now by being the Marine your Corporal trusts to work unsupervised.
Common Screwups
Failing a fuel contamination check verbally rather than in writing, then passing the system operational because the paperwork felt like overkill. Getting complacent on purchase tape wear indicators after a dozen clean inspections. Assuming SALS-J phasing is correct because the last setup was correct. Signing a hand receipt for equipment you haven't physically touched and inventoried. Rushing the bleed procedure on FARE hose assemblies under time pressure and introducing air into the flow.
A Day in the Life
0500: Reveille, physical training in boots and utes or unit PT depending on the training schedule. 0630: Morning hygiene, chow, section formation. 0730: Work call — tool check, equipment accountability, pre-op checks begin on assigned systems. 0900: FARE system setup or SALS-J installation under NCO supervision — physical work moving fuel bladders, hose assemblies, and lighting equipment to position. 1100: Contamination testing — run FSII and specific gravity checks, document results, report to Corporal. 1200: Chow. 1300: Arresting gear rigging detail or continuation of morning system setup depending on exercise timeline. 1500: PMCS on completed systems — walk the installed equipment, inspect connections, verify documentation is current. 1700: Section debrief with Corporal, identify any open discrepancies, submit deadline reports if applicable. 1800: Chow, personal time. 2000: Equipment security check, lights out if not on watch rotation.
Weekly Cadence
Training weeks: Monday unit PT and admin, Tuesday through Thursday field work or range training depending on the exercise cycle, Friday maintenance and inspection day. During field exercises or deployment workups the concept of a weekly cadence disappears — you work the mission, not the calendar. Expect 12-hour operational rotations, 6-hour rest cycles, and the workweek to be whatever the MWSS commanding officer says it is until the exercise ends. MCI courses, MOS task completion, and individual training records are your personal responsibility to track; nobody chases you on them until promotion time.
Key Skills — How to Drill Each
FARE system assembly: know every coupling, valve, and pump in the kit. Blind assembly in darkness is the standard, not the exception — field conditions do not provide lighting on demand. FSII and specific gravity testing: understand what you are measuring, not just how to read the tester. A failed FSII check means contaminated fuel suppression is below specification; know what causes contamination and what the downstream risk is. BAK-12/BAK-14 rigging: purchase tape installation, tensioning to published tolerances, and energy absorber connection. The geometry of hook engagement is not intuitive — study how aircraft hook path angle interacts with cable height and stanchion spacing. SALS-J setup: light sequencer configuration, approach path alignment, and phasing verification. One sequencer out of phase means an aircraft on approach sees a misleading visual glide path. Portable runway marking: panel placement for threshold, overrun, and displaced threshold markings. Know what each marking communicates to a pilot and place it accordingly.
Manuals & References — What Chapters Matter
TM 11275A-OI/2 is the SALS-J operator's manual — read the phasing verification section until you can recite it. NAVAIR 51-40ADB-2 and NAVAIR 51-40ADC-2 cover BAK-12 and BAK-14 respectively; the tension tables by aircraft type are the critical pages. NAVAIR 00-80T-109 governs aviation fuel contamination checks and the specific gravity/FSII test procedures — this is the authority document if a Corporal and a pilot disagree about a fuel test result. MCWP 3-21.1 describes how MWSS fits into the Marine aviation combat element — understanding the whole picture makes your piece of it more meaningful. ATP-56 is the NATO arresting gear compatibility standard — relevant during combined exercises when allied aircraft are using your strip.
Standards — How to Hit Each
No aircraft fueled from a FARE system that has not passed both FSII and specific gravity checks, documented with time, date, and tester's name. Arresting gear purchase tape tensions verified within published tolerance range for the aircraft type before the strip opens — not estimated, measured. SALS-J phasing verified operationally before the first aircraft movement, not assumed correct from the previous setup. Every piece of equipment on the hand receipt physically counted and inspected before signing, after signing, and at end of every field op.
Technical Mistakes — Concrete Consequences
Running only the FSII check and skipping specific gravity because FSII passed — both checks are required and test for different contamination vectors. Reinstalling a purchase tape without measuring remaining wear indicator length and comparing to the replacement threshold in the NAVAIR pub. Trusting a fuel test result from a Marine you haven't personally observed performing the test at least twice correctly. Bleeding a FARE hose assembly partially and assuming close enough removes the air pocket — partial bleeds leave enough entrained air to cause flow interruption at the worst moment. Not cross-referencing arresting gear tension settings against the actual aircraft type list for the exercise — the default setting is not universal.
Career Decisions at This Rank
The core decision at this tier is whether to approach 7011 as a technical profession or a job to survive. Marines who treat it as a profession — reading the manuals voluntarily, asking hard technical questions, keeping their training current without prompting — tend to promote faster, get better school assignments, and leave the Marine Corps with skills that translate to civilian aviation ground support and fuel system work. Marines who treat it as a job to get through tend to plateau at LCpl and leave without the technical depth that makes the MOS valuable. School selection matters: Corporal's Course eligibility depends on a clean record, and every meritorious school opportunity you decline early is harder to recover later. Start CLEP and Tuition Assistance paperwork in your first year.
How the Seat Varies by Unit Type
Active component MWSS at Cherry Point, Miramar, and Kaneohe Bay have regular exercise cycles and better access to equipment. Iwakuni-based Marines operate in a forward-deployed context with different operational tempo and more combined exercise exposure with allied forces, including ATP-56 compatibility work with Japanese and other allied aircraft. Reserve component MWSS units exist but 7011 is primarily active-duty due to deployment frequency. The difference in day-to-day intensity between a pre-deployment workup period and a garrison period at the same unit is significant — expect the tempo to be completely different depending on where your MWSS sits in the deployment cycle.
What Good Looks Like at This Rank
A 7011 LCpl who is good at their job walks into a pre-op check with their NAVAIR pub, a calibrated test kit, and a clean documentation sheet without being told to bring them. They run the FSII and specific gravity checks in the correct sequence, record the results accurately whether the sample passes or fails, and escalate a marginal result to their Corporal without waiting to be asked. They know the purchase tape wear indicators by sight, not just by the manual description. When they rig arresting gear, they verify the tension with a gauge and document it — the verbal 'looks good' does not exist in their workflow. At the end of a field exercise, their gear is cleaned, inventoried, and staged for recovery before anyone asks them about it. That standard, performed consistently without supervision, is what makes an NCO promote someone ahead of the peer group.
Preview — The Next Rank
At Corporal, you become accountable for the Marines working next to you and for the quality of their documentation and execution. The technical skills you build now become the foundation for teaching — you cannot explain the why behind arresting gear geometry to a junior Marine if you only learned the steps yourself. Start thinking like a team leader now: if your Corporal disappeared tonight, could you run the morning pre-op correctly and document it accurately? If the answer is not clearly yes, fill that gap before the promotion board makes it your official problem.
FAQ
7011 E1-E3 — Frequently Asked Questions
Q01What does a E1-E3 7011 (Expeditionary Airfield Systems Technician) actually do?
Set up and strike SALS-J approach lighting sequences and portable taxiway/runway edge lighting under NCO supervision.
Q02What's the most important thing to know as a E1-E3 7011?
You will spend more time covered in JP-8 and elbow-deep in hose assemblies than you ever will near an actual aircraft.
Q03What mistakes get E1-E3 7011 soldiers fired or relieved?
Failing a fuel contamination check verbally rather than in writing, then passing the system operational because the paperwork felt like overkill. Getting complacent on purchase tape wear indicators after a dozen clean inspections. Assuming SALS-J phasing is correct because the last setup was correct. Signing a hand receipt for equipment you haven't physically touched and inventoried. Rushing the bleed procedure on FARE hose assemblies under time pressure and introducing air into the flow
Q04What's next after E1-E3 for a 7011 (Expeditionary Airfield Systems Technician) in the Marines?
At Corporal, you become accountable for the Marines working next to you and for the quality of their documentation and execution.
Q05What manuals and regulations does a E1-E3 7011 need to know cold?
TM 11275A-OI/2 (SALS-J), NAVAIR 51-40ADB-2 (BAK-12), NAVAIR 51-40ADC-2 (BAK-14), MCWP 3-21.1 (MWSS operations)
This playbook has no tips yet. Be the first to share what you know.
Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards