Aircraft Mechanic — CH-37 · Converted to 67T20, effective 1965
The article maps 677.10 CH-37 crew chief/aircraft mechanic to 67T20 in both the opening paragraph and the Old/New table; the duplicate assertion is reconciled into this single row. Change 15 directed active-duty personnel conversion during 1–25 July 1965; effectiveTo is conservatively recorded at year precision rather than assigning one uniform individual conversion date.
Sources
- U.S. Army Aviation Digest, March 1966, vol. 12, no. 3, “New Enlisted Aviation MOS” (“New Enlisted Aviation MOS,” printed pp. 22–23; PDF pp. 24–25)