# AD 48-19-02: Elevator Lever

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed 149-46, 49-46, 649-79 and 749-79
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Registered aircraft: 2 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/BF6F2BC6CBCD3D178625696D0071A4B2.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/48-19-02

## 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 data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-763](https://openairdocs.org/tcds/A-763): Lockheed Martin Aeronautics Company; names 4 of 6 models: 149-46, 649-79, 749-79, 49-46

## Registered aircraft it may apply to (OpenAirDocs)

Matched by airframe and engine model; the AD's applicability may narrow it by serial number, part number or equipment.

- Aircraft: 2 (2 by airframe model, 0 by engine model)
- Makers: Lockheed 2

Models with the most aircraft:

- [Lockheed 49-46](https://openairdocs.org/model/lockheed-49-46): 1 aircraft (airframe model)
- [Lockheed 749-79](https://openairdocs.org/model/lockheed-749-79): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/48-19-02/models.md
Every aircraft: https://openairdocs.org/ad/48-19-02/aircraft.md

Its text cites no advisory circulars or STCs.

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