# AD 71-19-06: Escape Hatch Lock Check

- 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: September 21, 1971
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1294
- Registered aircraft: 3 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/41F083FD14D094FE86256A34006EFC83.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/71-19-06

## The airworthiness directive

71-19-06 HAWKER SIDDELEY: Amdt. 39-1294. Applies to Model DH-104 "Dove" airplanes.

Compliance is required as indicated.

To ensure that the emergency escape hatches (P/N's 4FS.835A/I and 4FS.835A/2) can be opened from outside the airplane accomplish the following:

  (a) Before further flight check the operation of each escape hatch lock mechanism by turning the external handle with the internal handle in the stowed position. The check required by this paragraph may be performed by the pilot.

  (b) If an escape hatch lock mechanism is found to be inoperable during the check required by paragraph (a), before further flight, except that the airplane may be flown in accordance with FAR 21.197 to a base where the repairs can be performed, secure the inoperable lock mechanism to the escape hatch in accordance with Hawker Siddeley Technical News sheet Series: CT(104) No. 222, Issue 1, dated March 15, 1971, or an FAA approved equivalent.

  (c) Within the next 100 hourstime in service after the effective date of this AD, unless already accomplished, secure the lock mechanism to each escape hatch in accordance with Hawker Siddeley Aviation, Ltd., Technical News Sheet Series: CT(104) No. 222, Issue 1, dated March 15, 1971, or an FAA-approved equivalent.

This amendment becomes effective September 21, 1971.

## 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/71-19-06/models.md
Every aircraft: https://openairdocs.org/ad/71-19-06/aircraft.md

Its text cites no advisory circulars or STCs.

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