# AD 72-12-03: Failure of Air Bottles

- 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: November 13, 1972
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small airplane
- Amendment: 39-1555
- Registered aircraft: 3 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/A93E1A6333E90DF286256E0D00503E28.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/72-12-03

## The airworthiness directive

72-12-03 HAWKER SIDDELEY AVIATION, LTD.: Amdt. 39-1457 as amended by Amendment 39-1542 is further amended by Amendment 39-1555. Applies to Hawker Siddeley de Havilland Model DH-104 "Dove" airplanes.

Compliance is required on or before February 1, 1973.

To prevent possible failure of the air bottles, P/N B.2994, used in the two main air reservoir assemblies, P/N C.51450, of the pneumatic system, replace the main air reservoir assemblies, P/N C.51450, located in the fuselage nose with serviceable assemblies, P/N SAS.388- 002, or SAS.388-003, containing air bottles P/N BAT.205-001.

(Hawker Siddeley Technical News Sheet, Series: CT(104) No. 223, Issues 1 and 2 dated June 21, 1971, and September 28, 1971, respectively, cover this same subject.)

Amendment 39-1457 became effective July 3, 1972.

Amendment 39-1542 was effective upon publication in the Federal Register as to all persons except those persons to whom it was made immediately effective by telegram datedAugust 31, 1972, which contained this amendment.

This Amendment 39-1555 becomes effective November 13, 1972.

## 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/72-12-03/models.md
Every aircraft: https://openairdocs.org/ad/72-12-03/aircraft.md

Its text cites no advisory circulars or STCs.

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