- Effective
- December 31, 1946
- Published
- June 17, 1950
- Issued
- December 31, 1946
- Models
- 24 C8, 24 C8A, 24 C8B, 24 C8D, 24 C8DS, 24 C8E and 26 more
- Registered aircraft
- 188 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 November 21, 2025.
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 | 47f3e986…522b19c | FAA DRS (API key needed) |
On this page
The airworthiness directive
46-40-01 FAIRCHILD: (Was Mandatory Note 4 of AD-707-2: 3 of AD-706-1: 3 of AD- 667-2; 4 of AD-600-2; 4 of AD-633-2; 4 of AD-535-2.) Applies to All Model 24 Series Aircraft.
To eliminate the possibility of engine failure due to air-lock in the fuel system, the fuel tank selector valve should be placarded immediately to specify that fuel be fed from only one tank at a time. This placard should read: "CAUTION. Operate on One Tank at a Time Only."
(Fairchild Service Bulletin No. 44-7-C dated February 10, 1944, covers this same subject.)
Affected TCDS · 13
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 188
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1933 | 3 |
|---|---|
| 1934 | 5 |
| 1935 | 8 |
| 1936 | 8 |
| 1937 | 18 |
| 1938 | 11 |
| 1939 | 14 |
| 1940 | 16 |
| 1941 | 4 |
| 1943 | 4 |
| 1944 | 1 |
| 1945 | 1 |
| 1946 | 44 |
| 1947 | 11 |
| 1950 | 1 |
| 1952 | 1 |
| 1954 | 1 |
| 1970 | 1 |
36 with no year recorded