- Models
- BT-13, BT-13A (Army SNV-1), BT-13B (Navy SNV-2)
- Data sheet
- TCDSA-2-571
- Registered aircraft
- 98 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 | 3b85c23b…08a079b | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-25-10 CONVAIR: (Was Service Note 4 of AD-2-571-2.) Applies to All BT-13 Series Airplanes Equipped With Wood Elevator Tabs.
Compliance required not later than September 1, 1947, and each 20 hours of operation thereafter.
The elevator tabs should be closely inspected to determine if any sign of glue failure, dry rot, or cracking of plywood exists adjacent to glue joints. Attachment of aluminum alloy extension to tab may have weakened the trailing edges of wood tabs or weathering of wood may have caused deterioration. If any failure or deterioration is found, the tab should be immediately replaced or repaired in an adequate manner.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 98
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1941 | 23 |
|---|---|
| 1942 | 23 |
| 1943 | 9 |
| 1944 | 4 |
| 1945 | 3 |
| 1946 | 5 |
| 1947 | 1 |
| 1953 | 1 |
| 1980 | 1 |
28 with no year recorded