- Models
- 24R40 (Army UC-86), 24R40S, 24R46, 24R46A (Army UC-61K), 24R46S, 24R9 (Army UC-61C) and 11 more
- Registered aircraft
- 174 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 | 0f90f8fa…94cfbe2 | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-50-09 FAIRCHILD: Applies to 24R and 24W Series Aircraft.
Inspection required each 100 hours of operation.
Inspect the landing gear fittings near the lower longeron attachment and also the fuselage fittings for cracks. Cracks in the strut not exceeding 1/8 inch in length may be repaired by electric arc welding. Cracks in excess of 1/8 inch in length should be stop drilled and oxyacetylene welded, and the landing gear strut should be re-heat-treated to 180,000 pounds per square inch.
(Fairchild Service Bulletin No. 41-8 dated June 23, 1941, covers this subject.)
Affected TCDS · 2
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 174
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1939 | 13 |
|---|---|
| 1940 | 16 |
| 1941 | 4 |
| 1943 | 4 |
| 1944 | 1 |
| 1945 | 1 |
| 1946 | 81 |
| 1947 | 15 |
| 1950 | 1 |
| 1952 | 1 |
| 1970 | 1 |
36 with no year recorded