- Models
- 749-79, 749A-79
- Data sheet
- TCDSA-763
- Registered aircraft
- 1 matched by model
- Product
- Aircraft · Large 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 | 55fbb8b7…6458e84 | FAA DRS (API key needed) |
On this page
The airworthiness directive
49-05-01 LOCKHEED: Applies to All 749 Aircraft Equipped With Curtiss 850-4C2-0 Propeller Blades.
Compliance required by March 25, 1949.
Magnetically inspect the shank section, as far outboard as the 18-inch station, of all 850- 4C2-0 blades delivered before November 1, 1948, having less than 700 hours service and which have not been magnafluxed since delivery, using a coil not greater than 27 inches in diameter and providing at least 8,000 ampere turns, inspection of blades with lowest service time should be accomplished first wherever possible.
(Curtiss Service Bulletin No. 47 covers this same subject.)
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 1
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.