Engine Test Operator · Converted to 684, effective 1945
Predecessor title from the AR 615-26 column: Engine Test Operator. Suggested conversions/remarks: 684. The table gives no row-level effective date; effectiveTo records the June 1945 manual year.
Sources
- Manual of Military Occupational Specialties, NAVMC 1008-PD, June 1945, Appendix B (Appendix B, printed p. 243 / PDF image p. 249, SSN 520)