Airworthiness Directive · The Boeing Company, Lockheed Aircraft Corporation Airplanes

AD 57-03-03

The Boeing Company, Lockheed Aircraft Corporation Airplanes

Airplane

Issued: 1957
Effective: Not stated
Maker: The Boeing Company
Supersedes: Nothing

Applies to

This AD applies to The Boeing Company, Lockheed Aircraft Corporation DC-7, DC-7B, DC-7C, 1049-54, 1049B-55 (Navy R7V-1), 1049C-55, 1049D-55, 1049E-55, 1049F-55 (USAF C-121C), 1049G-82, 1049H-82, 149-46, 1649A-98, 49-46, 649-79, 649A-79, 749-79, 749-79 (C-121A, VC-121B), 749A-79.

The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.

Official sources

The AD at the FAA · its text as the FAA keeps it
FAA Dynamic Regulatory System (DRS) · search 57-03-03 for its current status and any corrections