- Model
- Navion (Army L-17A)
- Data sheet
- TCDSA-782
- Registered aircraft
- 373 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 | 18 KB | 69a25372…4140bec | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-31-02 NAVION: (Was Mandatory Note 11 of AD-782-3.) Applies to Serial Numbers NAV-4-2 Through NAV-4-850.
To be accomplished not later than November 1, 1947.
Remove carburetor vapor return line hose P/N 75696 and install fire-resistant hose P/N 76701. This change is necessary to prevent premature failure of the vapor return line in the event of an engine compartment fire.
(NAA Field Service Bulletin No. 23 dated April 11, 1947, covers this rework.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 373
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.
| 1946 | 78 |
|---|---|
| 1947 | 98 |
| 1948 | 88 |
| 1949 | 23 |
| 1950 | 2 |
| 1951 | 1 |
| 1956 | 1 |
| 1958 | 1 |
| 1959 | 1 |
80 with no year recorded