# AD 53-13-01: Oil Transfer Mechanism

- Type: Airworthiness directive
- Status: Current
- Products: Rolls-Royce Gipsy Queen 70-4, Gipsy Queen 70 MK2 and Gipsy Queen 70 MK3
- Superseded by: Nothing supersedes this AD
- Product type: Engine
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/ADF668D351E454928625682C00594843.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/53-13-01

## The airworthiness directive

53-13-01 De HAVILLAND GYPSY QUEEN: Applies to All Model 70-4 Engines and to Those 70, 70-2, and 70-3 Engines Incorporating Modification G.1493. Compliance required not later than September 1, 1953. In order to prevent the loss of propeller control because of failure of the oil transfer mechanism, Modification G.1920, as described in de Havilland Engine Service Modification News Sheet GQ. 70 dated May 8, 1953, must be accomplished. Should Modification G.1728 not be incorporated, it is strongly recommended that it be embodied concurrently with Modification G.1920. The FAA concurs in this mandatory action. (de Havilland Modification News Sheet GQ. 70 dated May 8, 1953, available from de Havilland Aircraft Co., representative at Linden Airport, Linden, N.J., covers the same subject and describes method of repair.)

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS E-310](https://openairdocs.org/tcds/E-310): Rolls-Royce Limited; names 3 of 3 models: Gipsy Queen 70 MK3, Gipsy Queen 70 MK2, Gipsy Queen 70-4

## 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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