# AD 76-02-05: Engine Mounting Frame

- Type: Airworthiness directive
- Status: Current
- Products: de Havilland Aircraft Co., Ltd., The D.H. 104 Dove Series 1A, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5A, D.H. 104 Dove Series 5BA, D.H. 104 Dove Series 6A, D.H. 104 Dove Series 6BA, D.H. 104 Dove Series 7A, D.H. 104 Dove Series 7AXC, D.H. 104 Dove Series 8A and D.H. 104 Dove Series 8AXC
- Effective: January 30, 1976
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-2497
- Registered aircraft: 3 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/93861664E6AB722286256A38004985D1.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/76-02-05

## The airworthiness directive

76-02-05 HAWKER SIDDELEY AVIATION LIMITED: Amendment 39-2497. Applies to DH-104 "Dove" airplanes, certificated in all categories.

Compliance is required as indicated.

To prevent possible failure of the lefthand engine mounting frame top tube, and consequent tearing away of the engine, accomplish the following:

  (a) Within the next 25 hours' time in service after the effective date of this AD, unless already accomplished within the last 50 hours' time in service, inspect the top tube of the lefthand engine mounting frame, P/N 4EM.201A, for cracks in accordance with paragraph No. 3 of Hawker Siddeley Technical News Sheet (T.N.S.) No. 228, Issue 1, dated April 17, 1972, or an FAA-approved equivalent.

  (b) If any cracks are found as a result of an inspection required by this AD, replace the engine mounting frame with a new frame of the same part number or with a serviceable used frame of the same part number which has been inspected in accordance with paragraph (a) ofthis AD, and continue to inspect the replacement frame for cracks at intervals not to exceed 75 hours' time in service since the last inspection.

  (c) If no cracks are found as a result of an inspection required by this AD, continue to inspect the engine mounting frame top tube at intervals not to exceed 75 hours' time in service from the last inspection in accordance with paragraph 3 of Hawker Siddeley Technical News Sheet (T.N.S.) No. 228, Issue 1, dated April 17, 1972, or an FAA-approved equivalent.

This amendment becomes effective January 30, 1976.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A-807](https://openairdocs.org/tcds/A-807): Acro Aeronautical Services Ltd; names 10 of 10 models: D.H. 104 Dove Series 8A, D.H. 104 Dove Series 7A, D.H. 104 Dove Series 1A, D.H. 104 Dove Series 5A, D.H. 104 Dove Series 7AXC, D.H. 104 Dove Series 8AXC, D.H. 104 Dove Series 2A, D.H. 104 Dove Series 5BA…

## 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: 3 (3 by airframe model, 0 by engine model)
- Makers: Dehavilland 3

Models with the most aircraft:

- [Dehavilland DH104 DOVE 6A](https://openairdocs.org/model/dehavilland-dh104-dove-6a): 3 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/76-02-05/models.md
Every aircraft: https://openairdocs.org/ad/76-02-05/aircraft.md

Its text cites no advisory circulars or STCs.

---
OpenAirDocs.org is an independent research project of [Contrail Labs](https://contraillabs.com/). It is not affiliated with the FAA or the NTSB. Source documents are U.S. government works in the public domain.