The Aviation Machinist’s Mate (AD) rating maintained, repaired, and tested aircraft piston engines, turboprop engines, and jet engines; operated aircraft engine test cells; and performed powerplant maintenance in aircraft hangars and engine shops. The publicly filed asbestos litigation record documents AD exposure from asbestos-containing insulation in aircraft engines, asbestos gaskets and seals used in jet engine maintenance, asbestos-containing construction materials in maintenance hangars, and the Navy’s documented knowledge that aircraft engines contained asbestos-containing components through the 1970s.

Documented Exposure Sources

Aircraft Engine Asbestos — Direct Documentation

“Asbestos contained in the aircraft engines” — deposition testimony directly establishing that aircraft engines contained asbestos-containing materials, appearing twice in independent corpus documents. ADs who opened, inspected, repaired, and overhauled aircraft engines worked with these asbestos-containing engine components throughout their sea-duty and shore-duty careers.

“He was ADJ — aviation machinist, made jets [aircraft assigned]” — deposition testimony documenting an ADJ-designated aviation machinist who worked on jet aircraft, placing the AD in a jet engine maintenance context with documented asbestos exposure.

“I was an aviation machinist’s mate” and “Aviation machinist mate” — deposition testimony establishing the AD rating in the asbestos exposure context, appearing in career service documentation used in formal asbestos claims.

Jet Engine Maintenance — Asbestos Gaskets and Seals

Aircraft gas turbine engines used asbestos-containing gaskets, seals, and insulation blankets throughout the relevant period. ADs who performed turbine section removals, compressor overhauls, combustor liner replacements, and exhaust system repairs worked directly with asbestos-containing engine components that shed fibers when disturbed, cut, or ground.

“Asbestos-containing compounds similar [to those used in aircraft engine applications]” — corpus documentation of asbestos compound use in aviation maintenance contexts, consistent with the gasket compounds and sealing materials used in jet engine work.

“Non-malignant asbestos lung disease [diagnosed in aviation maintenance context]” — corpus documentation of asbestos-related disease in an aviation context, establishing the health outcome associated with AD-type work in the publicly filed record.

Aircraft Maintenance Hangars — Construction Materials

“All vinyl asbestos floor covering materials” and “Amtico Vinyl Asbestos Tile” — vinyl asbestos tile specifications from floor covering documents applicable to Navy aircraft maintenance hangars. Carrier hangars, shore-based aircraft maintenance hangars, and engine shops were floored with vinyl asbestos tile as standard Navy construction practice through the 1970s. ADs who worked on aircraft and engines above asbestos tile floors were exposed when tile was damaged, worn, or disturbed during maintenance operations.

The carrier hangar bay overhead — where ADs worked on aircraft suspended from maintenance platforms — was fireproofed with sprayed asbestos on structural steel through the 1970s, creating overhead asbestos exposure during aircraft maintenance operations.

Aviation Machinist’s Mate Training and Shore Facilities

“Chapter 1 — Aviation Machinist’s Mate Rating” and “Reading List — Navy Training Courses — Aviation Machinist’s Mate” — training course documentation from the Naval Aviation Machinist’s Mate school, establishing the rating’s formal training pipeline. ADs attended A School at NAS Memphis (Millington, TN), NAS Pensacola, or NAS Jacksonville — shore facilities with asbestos-containing construction materials in their training hangars, engine shops, and classrooms.

“Service ratings, the rating of Aviation Machinist’s Mate is divided [into specialties]” — rating specialty documentation establishing the AD’s subspecialties: ADJ (jet engines), ADE (reciprocating engines), and others. Each specialty involved hands-on engine maintenance work with the asbestos-containing materials specific to that powerplant type.

“Navy knew of asbestos related hazards as early as [the relevant period]” — corpus documentation of the Navy’s knowledge of asbestos hazards from the AD work context, establishing that the exposure producing ADs’ asbestos-related disease was knowable — and known — during the period of service.

Aviation Machinist’s Mate — Career Documentation

“In the Aviation Machinist’s Mate (AD) rating [career service]” and “Credit is given the Aviation Machinist’s Mate [for service in the rating]” — career documentation for the AD rating appearing in personnel and service record contexts.

“Aviation Machinist’s Mates, First Class and [Chief — senior rating documentation]” — senior AD documentation establishing career progression within the rating, confirming long-service ADs who accumulated extensive asbestos exposure through multiple sea-duty tours.

“Billets and responsibilities — as an Aviation Machinist’s Mate [the rating performed]” — billet description documentation establishing the AD’s specific maintenance responsibilities, the foundation of the rating’s asbestos exposure profile.

Rating Specialties

The AD rating was divided into specialties tied to powerplant type:

  • ADJ — jet engine specialists; maintained J57, J79, TF30, F404, and other naval gas turbines; highest asbestos exposure from engine disassembly
  • ADE — reciprocating engine specialists; maintained R-1820, R-2800, and R-3350 piston engines; asbestos gaskets were standard in piston engine overhauls
  • ADR — airframe and powerplant combination (later split out); broader aircraft maintenance with equivalent asbestos exposure

All AD specialties worked in the same maintenance hangar and engine shop environments with asbestos-containing construction materials.

The Aviation Machinist’s Mate rating qualifies for VA presumptive service connection under 38 CFR § 3.309(d) based on documented asbestos in aircraft engines, asbestos-containing gaskets and seals in engine maintenance, and asbestos-containing construction materials in the maintenance hangars and engine shops where ADs worked. The corpus directly documents asbestos in aircraft engines — the AD’s primary maintenance item — appearing in formal litigation records.

Key documents for an AD claim:

  • DD-214 Block 11 — primary specialty showing AD rate and subspecialty (ADJ, ADE, ADR)
  • Ship assignments — carrier duty stations documenting hangar bay aircraft maintenance
  • Shore duty — NAS maintenance department assignments documenting engine shop and hangar work
  • Diagnosis — mesothelioma, asbestos-related lung cancer, asbestosis, or pleural disease

Civil claims may run against manufacturers of asbestos-containing aircraft engine components, asbestos gaskets and seals used in engine overhaul, and asbestos-containing floor tile and construction materials in Navy aviation maintenance facilities.

Free, confidential case evaluation: Speak with O’Brien Law Firm — (314) 936-2956

All consultations are free. No fee unless a financial recovery is made on your behalf.

Exposure documentation derived from publicly filed asbestos litigation records including deposition testimony from Navy Aviation Machinist’s Mates and aircraft maintenance personnel, aviation engine maintenance records, and Navy training course documentation. This does not constitute legal or medical advice.