Apr Utilities System Specl · Converted to 3E431, effective October 31, 1993
AFMAN 36-2108 Attachment 1 maps predecessor AFSC 56631 to AFSC 3E431; the cited table is effective 31 October 1993.
Sources
- AFMAN 36-2108, Airman Classification (Attachment 1, p. 93; table effective 31 Oct 1993)