AC 65-9A Airframe & Powerplant Mechanics General Hanbook, Advisory Circular No. 65-9A, Change 1, March 31, 1999
[Place of publication not identified] : [publisher not identified], [1999?]
- Shipping List #: 99-0267-P.
- Shipping List Date: 06/11/99.
- "Purpose: This change is made to accomodate the National Transportation Safety Board's (NTSB) Safety Recommendation A-96-37."
- "Principal Change: The 'spot test' procedure that distinguishes between Inconel and stainless steel is replaced with a 'electrochemical' procedure."