- Models
- AT-6 (SNJ-2), AT-6A (SNJ-3), AT-6B, AT-6C (SNJ-4), BC-1A
- Data sheet
- TCDSA-2-575
- Registered aircraft
- 107 matched by model
- Product
- Aircraft · Small 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 | 19 KB | aeca9bd6…bf29363 | FAA DRS (API key needed) |
On this page
The airworthiness directive
46-17-01 NORTH AMERICAN: (Was Mandatory Note 5 of AD-2-575-3.) Applies to Army BC-1A, AT-6, -6A, -6B, -6C; Navy SNJ-2, -3, -4 Aircraft.
To be accomplished prior to original certification or at first periodic inspection thereafter.
Inspect the universal joint pins in the flap control push-pull tubes, P/N 19-152642, connecting the outer and inner flap for broken pins. Replace all broken pins with new pins and install a close fitting rubber hose over each universal joint to hold in place any pins which may break in the future.
(North American Service Bulletin dated March 6, 1947, covers this subject also.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 107
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1938 | 1 |
|---|---|
| 1940 | 2 |
| 1941 | 11 |
| 1942 | 15 |
| 1943 | 15 |
| 1944 | 5 |
| 1945 | 2 |
| 1946 | 1 |
| 1956 | 5 |
| 1957 | 3 |
| 1958 | 3 |
| 1960 | 1 |
| 1961 | 2 |
| 1975 | 1 |
40 with no year recorded