- Model
- 18
- Data sheet
- TCDSA-723
- Registered aircraft
- 2 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 | d32a747e…3314ce3 | FAA DRS (API key needed) |
On this page
The airworthiness directive
46-13-02 LOCKHEED: (Was Mandatory Note 18 of AD-723-2). Applies Only to Model 18 Airplanes Used in Scheduled Air Carrier Operation.
Compliance required not later than April 30, 1946.
In order to comply with CAR Special Regulation 333, the present fuel system plumbing equipment shall be replaced with a dual fuel system in accordance with Lockheed Service Bulletin No. 18/SB-113, dated August 17, 1945, or any other dual fuel system approved by the Administrator.
Affected TCDS · 1
The type certificate data sheets for the models this AD names, matched by model and maker.
Registered aircraft · 2
Registered aircraft whose airframe or engine model this AD names. Matched by model only, so check each against the AD’s applicability.