- Models
- C-46A, C-46D, C-46F, C-46R, C-46E, C-46A and 9 more
- Registered aircraft
- 7 matched by model
- Product
- Aircraft · Large airplane
Unofficial copy of the text in the FAA’s Dynamic Regulatory System. The FAA’s own copy is the authoritative one. DRS record last changed May 30, 2024.
Copies of the files this page was built from, with their SHA-256. Retrieved October 18, 2026.
| File | Size | SHA-256 | Original |
|---|---|---|---|
| FAA DRS HTML | 20 KB | fc6fe985…3fbd138 | FAA DRS (API key needed) |
On this page
The airworthiness directive
51-29-02 CURTISS-WRIGHT: Applies to all Model C-46 Series aircraft.
Compliance required by February 1, 1952, and each 500 hours thereafter.
Inspect the main landing gear side brace attachment fittings, P/N 20-310-1033 L and R, for cracks particularly from the edge of the forging to the lower inboard attaching bolt hole. If defects are found, the parts should be replaced by undamaged parts.
In view of unavailability of parts and controlled inspection procedures under which satisfactory operation has existed, it will be considered satisfactory to operate the aircraft with a cracked fitting under the following procedure until further notice. Inspect at periodic intervals not to exceed 150 hours with approximately an 8-power magnifying glass or dye penetrant or any equivalent method. If cracks extend beyond bolt hole, either through or around the hole, the fitting must be replaced.
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 7
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1942 | 1 |
|---|---|
| 1944 | 4 |
| 1945 | 1 |
| 1959 | 1 |