# AD 69-19-04: Glider Trim

- Type: Airworthiness directive
- Status: Current
- Products: Slingsby Type T.53.B.
- Effective: September 15, 1969
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Glider
- Amendment: 39-841
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/00D6D09489952E4786256A560052FB7D.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/69-19-04

## The airworthiness directive

69-19-04 SLINGSBY: Amdt. 39-841. Applies to Model T.53B Gliders.

To ensure that the glider can be trimmed when being aero-towed, within the next 10 hours' time in service after the effective date of this AD, unless already accomplished, check to determine that the tailplane incidence is 1 degree 50' + 20'. If it is incorrect change the incidence of the tailplane to 1 degree 50' + 20' measured from the aircraft datum in accordance with Slingsby Aircraft Company Ltd., Technical Instruction No. 40, dated July 1969 or later ARB issue or an FAA approved equivalent.

This amendment becomes effective September 15, 1969.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS G17EU](https://openairdocs.org/tcds/G17EU): Slingsby Aircraft Co Ltd.; names 1 of 1 models: Type T.53.B.

## 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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