- Models
- 149-46, 49-46, 649-79, 749-79
- Data sheet
- TCDSA-763
- 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 | 19 KB | d0cf9ee4…7420105 | FAA DRS (API key needed) |
On this page
The airworthiness directive
48-19-02 LOCKHEED: Applies to Models 49-46, 149-46, 649-79 and 749-79 Aircraft.
Compliance required at next No. 1 inspection, and thereafter at periods not to exceed 550 hours of operation.
Inspect the two fittings, P/N 256019, "Lever-Cockpit Torque Tube", in the elevator control system for the presence of cracks or other signs of failure at the rivet attachment points, particularly at the base of the arm. Remove and replace any defective parts. The periodic inspection may be discontinued if the two levers are replaced with new parts, LAC No. 302349, or are reinforced with additional fittings, LAC No. 302337, or their equivalents.
(LAC Service Bulletin 49/SB-456 covers the lever substitution or reinforcement.)
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.
| 1946 | 1 |
|---|---|
| 1949 | 1 |