# AD 79-09-04: Engine Starter Relay Failures

- Type: Airworthiness directive
- Status: Current
- Products: Textron 76
- Effective: May 7, 1979
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-3455
- Registered aircraft: 151 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/525837FE55785CE186256A080072F920.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/79-09-04

## The airworthiness directive

79-09-04 BEECH: Amendment 39-3455. Applies to Model 76 (Serial Numbers ME-1 through ME-182) airplanes.

COMPLIANCE: Required as indicated unless previously accomplished.

To preclude undetected failures of the engine starter relay and probable loss of electrical power, within the next 25 hours time-in-service after the effective date of this AD, accomplish the following:

A) Insert into the Pilot's Operating Handbook and FAA Approved Airplane Flight Manual, P/N 105-590000-5 (which was supplied with the airplane as required equipment) revision P/N 105-590000-5A1 dated March 1979, a copy of which is enclosed herewith and operate the airplane in accordance with these revised instructions.

B) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region.

Beechcraft Service Instructions Number 1050 covers the subject matter of this AD.

The Interim Addendums previously supplied by Beechcraft Executive Airplane Safety Communique 76-49 do not meet the requirements of this AD.

This Amendment becomes effective May 7, 1979.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A29CE](https://openairdocs.org/tcds/A29CE): Textron Aviation Inc.; names 1 of 1 models: 76

## 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: 151 (151 by airframe model, 0 by engine model)
- Makers: Beech 151

Models with the most aircraft:

- [Beech 76](https://openairdocs.org/model/beech-76): 151 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/79-09-04/models.md
Every aircraft: https://openairdocs.org/ad/79-09-04/aircraft.md

Its text cites no advisory circulars or STCs.

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