Aircraft Environmental Systems · Merged into 452X5, 454X5, 454X6, effective 1989
Merged with 423X0 in the 1989 Rivet Workforce restructuring into the electrical and environmental ladders that were consolidated as 452X5 in April 1993, then converted to 2A6X6 on 31 October 1993. Confidence: high for lineage; year precision for the merger date.
Sources
- Occupational Survey Report: Aircraft Electrical and Environmental Systems, AFSCs 452X5, 454X5, and 454X6 (AFPT 90-452-885) (Preface and Introduction: Rivet Workforce restructuring of AFSC 423X0 and 423X1; 1989 merger into three career ladders)