01 / Occupational profile
Your 6531 occupational profile
Heavy ordnance loading
Common occupational factor
Loading bombs, rockets, missiles, and ammunition involves lifting and maneuvering heavy loads using weapons-support equipment, often in awkward positions under the aircraft.
Flight-line engine and rotor noise
Common occupational factor
Arming/de-arming and loading operations happen on the flight line near running or recently operated aircraft engines.
Proximity to munitions and explosive-safety hazards
Assignment-dependent
Routine handling, fusing, and loading of live and inert ordnance is part of the job, governed by explosive-handler safety requirements.
02 / Your service
What did you actually do?
Your MOS is the starting point. Your actual assignment, era, equipment, location, and duties determine which parts of the occupational history are relevant. Use the Evidence Builder below to select your actual duties and see records that may corroborate them.
6531s inspect ammunition, test aircraft armament systems, perform preventive maintenance and repairs, and load and fuse ordnance onto fixed-wing and rotary/tiltrotor aircraft, then arm or de-arm the aircraft before and after flight. Duties include removing, servicing, installing, and loading aircraft guns, conducting functional tests of racks, launchers, adapters, and armament circuits, configuring aircraft for different ordnance loads, and applying bore-sight procedures. The work is done on the flight line around running aircraft and jet/rotor noise, involves lifting and maneuvering heavy ordnance and weapons-support equipment, and requires close adherence to explosive-safety procedures given routine contact with live and inert munitions.
Duties that may vary by assignment
- Inspecting, fusing, and loading aviation ordnance (bombs, rockets, missiles, guns)
- Arming and de-arming aircraft before and after flight
- Removing, servicing, and installing aircraft guns
- Functional testing of racks, launchers, adapters, and armament electrical circuits
- Configuring/reconfiguring aircraft for different ordnance loads
- Operating and maintaining armament weapons support equipment
- Working on the flight line around running aircraft engines and rotors
Private, on this page only
Military Occupational Evidence Builder
Based on what you actually did in the military, what records might document it? Select only what applied to you. No name, file number, contact details, free text, or upload. Nothing is saved or sent.
Military service
Marine Corps · 6531 Aircraft Ordnance Technician
For another specialty, open its guide from the MOS library. A job code alone does not establish individual duties or exposure.
Era(s) of service
Deployments
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Your Evidence Builder identifies records that may document your service history. If VA has already decided your claim, the next question is different: what did VA accept, what did VA reject, and why?
Request a free decision review03 / Corroboration
Building your occupational history
Records matter because they can connect a job title to an individual's actual work and circumstances.
Heavy ordnance loading
Records that may corroborate it
- · Sick call and physical therapy entries during the assignment
- · Line-of-duty or incident reports for a documented injury
- · Squadron ordnance division assignment records
Limit: Typical loading demands do not by themselves establish that a specific joint injury occurred in service.
Flight-line engine and rotor noise
Records that may corroborate it
- · Hearing-conservation audiograms (DD 2215/2216) and DOEHRS-HC records
- · Evaluations describing flight-line arming/de-arming duties
Limit: Flight-line assignment does not by itself establish a current hearing-loss or tinnitus diagnosis; audiometric evidence and a medical opinion are still required.
Proximity to munitions and explosive-safety hazards
Records that may corroborate it
- · Explosive-handler qualification and certification records
- · Mishap, incident, or safety investigation reports, if any occurred
- · Unit ordnance division assignment records
Limit: Routine ordnance handling does not by itself establish a specific blast-related injury; an in-service event and a current diagnosis are still required.
04 / Evidence standard
What your MOS can — and cannot — establish
May help document
Work performed, circumstances of service, consistency of an alleged exposure, and the nature or duration of duties where supported by individual records.
Does not automatically establish
A diagnosis, medical causation, severity, percentage, presumption, or entitlement to service connection.
05 / Medical evidence
Conditions that may be relevant to the occupational history
This is not a list of conditions to claim. A veteran's actual diagnosis and individual service record determine relevance; occupational evidence is not medical causation.
Musculoskeletal +
Back and shoulder conditions from ordnance loading
Why the occupation may matter: Loading heavy bombs, rockets, and missiles is a routine, physically demanding part of the job.
Records and clinical evidence: Sick call or physical therapy entries from the relevant period, imaging, and a current orthopedic diagnosis.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Auditory +
Hearing loss and tinnitus
Why the occupation may matter: Arming and de-arming duties routinely take place near running aircraft engines on the flight line.
Records and clinical evidence: Audiometric records showing a threshold shift, a current diagnosis, and evidence tying the exposure to your specific squadron assignment.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
06 / Exposure record
ILER and toxic exposure
For applicable exposure-related claims, VA may review the Individual Longitudinal Exposure Record (ILER) and a toxic exposure risk activity (TERA) memorandum along with deployment and occupational records. An ILER entry does not automatically establish exposure or service connection.
07 / After a decision
Why a 6531 claim may still be denied
An exposure finding is not the same as a grant. These are examples from the researched guide, not predictions about a particular case.
VA may accept
A duty or event consistent with the service record
But may deny
A diagnosis, medical relationship, or rating element
Record to examine
Decision findings, service and private treatment records, examination rationale, and medical opinions.
Flight-line arming duty not distinguished from shop/magazine work
A denial may understate flight-line noise or lifting demands if records only describe general ordnance-section duties without flight-line specifics.
No documented event for a specific joint or hearing claim
Without sick call entries or incident reports from the relevant period, it can be harder to tie a current condition to a specific loading or arming incident.
Oakridge Claims / Appeals Focused
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The important question is what VA accepted, what it rejected, and why. A decision review considers the decision, examinations, and the complete record — including private and VA records that may need development. Oakridge is appeals-focused — core work is post-decision, but initial and new claims are accepted on a case-by-case basis (no fee for pre-decision work).
Fees for eligible post-decision representation are governed by a written agreement. See fee details. No outcome is guaranteed.
6531 questions
Does the 6531 MOS by itself establish a nexus for a back or hearing condition?
No. The occupation describes typical duties and demands; a current diagnosis and a medical opinion connecting it to service are still required.
What records help show the physical demands of ordnance loading specifically?
Squadron ordnance division assignment records, explosive-handler certifications, and sick call entries from the relevant period can help corroborate the specific tasks you performed.
Sources and legal references
General education only; not legal or medical advice. Oakridge Claims is a private business, not affiliated with or endorsed by VA. Nothing here establishes a representative-client relationship or guarantees a result. Free accredited VSO help is available.