Marines MOS 6173

Helicopter Crew Chief

Marines 6173 (Helicopter Crew Chief) typically involves aviation mission support and aircraft-related duties.

Common Exposures

🔊 Noise
Flight line noise from jet engines and aircraft
🧪 Chemicals
Aviation fuels, solvents, hydraulic fluids, lubricants
💪 Physical Strain
Lifting heavy components, working in confined aircraft spaces

Likely Service-Connected Conditions

Diagnostic Code Condition Likelihood Reasoning
5237 Lumbosacral or cervical strain High Physical job demands commonly contribute to chronic back strain
6260 Tinnitus, recurrent High Constant flight line noise exposure
5242 Degenerative arthritis, degenerative disc disease other than intervertebral disc syndrome (also, see either DC 5003 or 5010) Medium Repetitive heavy lifting
6847 Sleep Apnea Syndromes Medium Shift work and irregular schedules
9434 Major depressive disorder Medium High-stress environment

☢️ PACT Act & Toxic Exposure

Select the era that best matches when you served to see how this job’s toxic exposures changed over time.

PACT Act guide Use exposure finder
Vietnam Era 📅 1962-1975
Agent Orange / Herbicides
PACT Act
Potential contact with herbicide contamination on aircraft, equipment, or C-123-related operations.
Extreme Noise
High-decibel jet, rotor, and flight deck noise exposure.
Hydraulic Fluid
Maintenance work around hydraulic systems, leaks, and soaked components.
JP-4 Fuel
Heavy JP-4 fuel vapor and skin-contact exposure common to Vietnam-era aviation operations.
Jet Fuel
Routine exposure to jet fuel, fuel vapors, and exhaust on the flight line.
Solvents
Degreasers, cleaners, and maintenance solvents used on airframes and components.
Cold War Era 📅 1945-1991
Extreme Noise
High-decibel jet, rotor, and flight deck noise exposure.
Hydraulic Fluid
Maintenance work around hydraulic systems, leaks, and soaked components.
Jet Fuel
Routine exposure to jet fuel, fuel vapors, and exhaust on the flight line.
Solvents
Degreasers, cleaners, and maintenance solvents used on airframes and components.
Gulf War Era 📅 1990-2001
Depleted Uranium
PACT Act
Potential depleted uranium dust contamination on returned aircraft and components.
Oil Well Fire Smoke
PACT Act
Flight line operations in smoke-laden air near burning oil fields.
Extreme Noise
High-decibel jet, rotor, and flight deck noise exposure.
Hydraulic Fluid
Maintenance work around hydraulic systems, leaks, and soaked components.
Jet Fuel
Routine exposure to jet fuel, fuel vapors, and exhaust on the flight line.
Solvents
Degreasers, cleaners, and maintenance solvents used on airframes and components.
Post-9/11 Era 📅 2001-present
Burn Pits
PACT Act
Flight line proximity to burn pit smoke and persistent airborne hazards at deployed bases.
PFAS Exposure
PACT Act
Exposure to AFFF/PFAS firefighting foam during aircraft rescue and hangar response environments.
Sand / Dust Particulates
PACT Act
Fine sand and dust ingestion into engines and maintenance workspaces.
Extreme Noise
High-decibel jet, rotor, and flight deck noise exposure.
Hydraulic Fluid
Maintenance work around hydraulic systems, leaks, and soaked components.
Jet Fuel
Routine exposure to jet fuel, fuel vapors, and exhaust on the flight line.
Solvents
Degreasers, cleaners, and maintenance solvents used on airframes and components.