Marine Corps · Legacy SSN

558 Airplane Instrument Shop Chief

Converted to 686, effective 1945.

Documented history

Airplane Instrument Shop Chief · Converted to 686, effective 1945

Predecessor title from the AR 615-26 column: Airplane Instrument Shop Chief. Suggested conversions/remarks: 686. The table gives no row-level effective date; effectiveTo records the June 1945 manual year.

Sources

Sourced from official classification manuals and messages. Spot an error? Let us know.