01 / Occupational profile
Your 15S occupational profile
Turbine engine and rotor noise
Common occupational factor
Engine ground runs for diagnosis and maintenance, plus close-in flight-line and field-site work, exposed repairers to sustained high-intensity noise.
Fuel, hydraulic fluid, and solvent contact
Common occupational factor
Routine servicing and troubleshooting involve repeated skin and inhalation contact with jet fuel, hydraulic fluid, and cleaning solvents, often in field conditions with fewer controls than a fixed hangar.
Field-site lifting and awkward-posture work
Common occupational factor
Forward-area maintenance with limited lift equipment often means more manual handling of components and tools than garrison hangar work.
Outdoor and deployed field conditions
Common occupational factor
Forward observation-helicopter detachments operated outdoors in all weather, including extended desert deployments.
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.
Soldiers in this field removed and installed aircraft subsystem assemblies — engines, rotors, gearboxes, transmissions, and mechanical flight controls — serviced and lubricated aircraft systems, and performed scheduled and special inspections. Because scout-helicopter troops frequently operated from small forward sites rather than large aviation task forces, maintenance often happened in the field: on unimproved landing zones, under camouflage netting, or at forward arming and refueling points, with less equipment and shelter than a garrison hangar provides. Many soldiers in this MOS also performed air-crewmember duties. Diagnostic and troubleshooting work used special tools and test equipment, and fault documentation followed each mission.
67V was the designator for scout-helicopter maintenance on the earlier OH-58A/C Kiowa before Army aviation maintenance was reorganized into the current CMF 15 aircraft-specific codes as 15S, which also covered OH-58A/C in Active Component units alongside the OH-58D Kiowa Warrior. The Army divested the OH-58D fleet in 2017 and 15S is no longer awarded; soldiers who held either designator can use this guide for the scout/observation-helicopter maintenance duties they performed.
Duties that may vary by assignment
- Removing, installing, and servicing engines, rotors, gearboxes, and flight controls
- Scheduled and special inspections of OH-58 aircraft and subsystems
- Field-site and forward-area maintenance, often with limited shelter or equipment
- Troubleshooting and diagnosing subsystem malfunctions
- Air-crewmember duties on some assignments
- Fuel and hydraulic fluid handling during servicing
- Working near running engines and rotor systems on active flight lines
Related historical codes: Legacy 67V Observation/Scout Helicopter Repairer (pre-CMF 15 designator, OH-58A/C); 67T designator where locally used for early OH-58D transition units
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Military Occupational Evidence Builder
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Military service
Army · 15S OH-58D Helicopter Repairer
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
Already have a VA decision?
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.
Turbine engine and rotor noise
Records that may corroborate it
- · Hearing-conservation audiograms (DD 2215/2216) and DOEHRS-HC records
- · Assignment records placing you in a cavalry or aviation maintenance unit
- · Evaluations describing flight-line or field maintenance duties
Limit: Documented noise supports the in-service event only. A current hearing disability under 38 CFR § 3.385 or a tinnitus complaint, and a medical link, are still required.
Fuel, hydraulic fluid, and solvent contact
Records that may corroborate it
- · Occupational health or hazmat-program records, if enrolled
- · Evaluations describing maintenance duties
- · Deployment orders and unit location records for forward sites
Limit: The MOS does not establish contact with any specific product or exposure level. Era, location, tasks, a current diagnosis, and a medical opinion all still matter.
Field-site lifting and awkward-posture work
Records that may corroborate it
- · Sick call and physical therapy entries during the assignment
- · Line-of-duty or incident reports for a documented injury
- · Evaluations describing field maintenance duties
Limit: Typical field-maintenance demands do not by themselves establish that a specific joint was injured in service; a current diagnosis and medical opinion are required.
Outdoor and deployed field conditions
Records that may corroborate it
- · Deployment orders and unit location records
- · Sick call entries for heat or cold injury
- · Evaluations describing field or deployed operations
Limit: Outdoor work alone does not establish a specific heat, cold, or skin-injury diagnosis; clinical findings and a medical link are 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.
Hearing +
Tinnitus and hearing loss
Why the occupation may matter: Turbine engine testing and close-in flight-line work are sustained noise sources in OH-58 maintenance.
Records and clinical evidence: Audiometry meeting 38 CFR § 3.385, service audiograms, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Skin +
Skin conditions from fuel and fluid contact
Why the occupation may matter: Field servicing involves repeated skin contact with fuel and hydraulic fluid, often with fewer protective controls than garrison facilities.
Records and clinical evidence: Current dermatology diagnosis, duty records, and a medical opinion.
Occupational history alone does not establish this diagnosis or its medical relationship to service.
Spine / joints +
Back and shoulder conditions
Why the occupation may matter: Manual handling of aircraft components in forward field conditions is a recognized physical demand.
Records and clinical evidence: Current diagnosis, in-service treatment or duty records, and a medical opinion.
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 15S 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.
Field conditions not documented
Forward observation-helicopter maintenance often left fewer written records than garrison hangar work; unit orders and buddy statements may help establish the setting.
Noise accepted, hearing link rejected
A normal separation audiogram alone does not decide a hearing claim, but examiners often rely on it without addressing the full in-service noise history.
67V/15S aircraft era unclear
Personnel records sometimes list only the MOS code without the aircraft variant; training records and unit history may clarify whether duties involved the OH-58A/C or OH-58D.
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).
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15S questions
Is 67V the same job as 15S?
They cover the same occupational lineage — observation and scout-helicopter maintenance — though the aircraft variant differed by era: OH-58A/C under 67V, and OH-58A/C or OH-58D under 15S. Note both codes when compiling your records.
Is 15S still an active MOS?
No. The Army divested the OH-58D Kiowa Warrior fleet starting in 2017 and 15S is no longer awarded. Soldiers who held it can still document the duties they performed during their era of service.
What records show whether I worked in the field or in a garrison hangar?
Unit assignment orders, deployment records, and evaluations describing your duties are the usual starting points.
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.