- 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 | 19 KB | 974cc1d5…6fb298b | FAA DRS (API key needed) |
On this page
The airworthiness directive
47-10-13 LOCKHEED: (Was Mandatory Note 15 AD-763-3.) Applies to All Model 49 Serials Up to and Including 2075.
Compliance required prior to July 1, 1947.
(a) On all firewalls, replace aluminum alloy bulkhead fittings for fuel, oil, and hydraulic lines with nickel steel fittings or others of equivalent fire resistance.
(LAC Service Bulletin 49/SB-108 covers this same subject.)
(b) In nacelle zones 1 and 2 replace all buting having cut-length hose connections with flexible coupled hose assemblies.
(LAC Service Bulletin 49/SB-103 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.