- Model
- 49-46
- 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 | 18 KB | 389ff0c9…345552b | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-10-25 LOCKHEED: (Was Mandatory Note 28 of AD-763-3.) Applies to All Model 49 Serials Incorporating Eclipse Type 1193, Model 1, Style A Generators on Which the Serial Numbers Are Not Followed by the Letter "M".
Compliance required prior to March 1, 1947.
Replace the 12 mounting head-to-yoke bolts in each generator with new 1/4-inch bolts (P/N 63937 referred to in Eclipse-Pioneer Bulletin No. 70).
(LAC Service Bulletin 49/SB-64 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.