# AD 77-11-03: BEECH Model 278 Propellers

- Type: Airworthiness directive
- Status: Current
- Products: Textron 278
- Effective: July 16, 1977
- Superseded by: Nothing supersedes this AD
- Product type: Propeller
- Amendment: 39-2913
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/CA70B692DDD77EFC86256A4F0046011A.0001
- DRS record last changed: January 21, 2026
- Page: https://openairdocs.org/ad/77-11-03

## The airworthiness directive

77-11-03 BEECH: Amendment 39-2913. Applies to Model 278 propellers installed on Models H35, J35, K35, M35, N35, P35, A45 (T34A), B45 and D45 (T34B) airplanes. Compliance: Required as indicated, unless previously accomplished. To prevent loss of propeller control, accomplish the following: A) Within 100 hours' time in service after the last inspection accomplished per AD 69-26-04, using dye penetrant procedures, inspect Beech P/N 278-336 pitch control bolts for evidence of cracks in the exposed thread runout area between the hex flats and the aft pitch setting nut. If a crack is detected, install Beech Kit No. 278- 0002S incorporating Beech P/N 278-368-1 or -3 pitch control bolts and steel pitch control yoke, in accordance with Beechcraft Service Instructions 0302-248, or later approved revisions. B) Within 100 hours' time in service after the effective date of this AD, install Beech Kit No. 278- 0002S incorporating P/N 278-368-1 or -3 pitch control bolts and steel pitchcontrol yoke, in accordance with Beechcraft Service Instructions 0302-248, or later approved revisions. C) Any equivalent method of compliance with this AD must be approved by the Chief, Engineering and Manufacturing Branch, FAA, Central Region. This AD supersedes AD 69-26-04 (Amendments 39-897 and 39-967). This amendment becomes effective July 16, 1977.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS P-882](https://openairdocs.org/tcds/P-882): Textron Aviation Inc.; names 1 of 1 models: 278

## Registered aircraft it may apply to (OpenAirDocs)

No registered aircraft matched the models it names.

Its text cites no advisory circulars or STCs.

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