# AD 76-09-11: Crank Arm or Servo Valve Assembly

- Type: Airworthiness directive
- Status: Current
- Products: Lockheed Martin 382, 382B, 382E, 382F and 382G
- Effective: May 14, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Large airplane
- Amendment: 39-2615
- Registered aircraft: 6 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/1010DD90F3B127AE86256E0C006FA127.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-09-11

## The airworthiness directive

76-09-11 LOCKHEED: Amendment 39-2601 as amended by Amendment 39-2615. Applies to all Model 382 series airplanes below serial number 4673. Before further flight, unless already accomplished, perform the crank arm inspection for rudder, aileron and elevator in accordance with Lockheed Alert Service Bulletin A 382-27-17. If the crank arms do not pass the inspection requirements, replace the crank arm or servo valve assembly prior to further flight.

The Lockheed Alert Service Bulletin stated that acceptable replacement cranks were identified with a "V" index mark. However, some of the replacement cranks are being made from a different material than those identified with a "V" index mark. These new cranks are identified with a straight line index mark and either of the cranks identified with a "V" or a straight line index mark are acceptable.

Amendment 39-2601 was effective May 14, 1976 and was effective on receipt for all recipients of the telegram dated April 23, 1976, whichcontained this amendment.

This Amendment 39-2615 becomes effective immediately.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A1SO](https://openairdocs.org/tcds/A1SO): Lockheed Martin Corporation; names 5 of 6 models: 382F, 382, 382E, 382B, 382G

## 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: 6 (6 by airframe model, 0 by engine model)
- Makers: Lockheed 6

Models with the most aircraft:

- [Lockheed 382G](https://openairdocs.org/model/lockheed-382g): 5 aircraft (airframe model)
- [Lockheed 382 44C (C130K)](https://openairdocs.org/model/lockheed-382-44c-c130k): 1 aircraft (airframe model)

All 2 models: https://openairdocs.org/ad/76-09-11/models.md
Every aircraft: https://openairdocs.org/ad/76-09-11/aircraft.md

Its text cites no advisory circulars or STCs.

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