# AD 70-12-10: Elevator Trim Tab System

- Type: Airworthiness directive
- Status: Current
- Products: Dornier Luftfahrt Do 28 D-1
- Effective: June 11, 1970
- Superseded by: Nothing supersedes this AD
- Product type: Aircraft, Small/large airplane
- Amendment: 39-1005
- Registered aircraft: 1 may be affected, by airframe or engine model (OpenAirDocs)
- FAA DRS: https://drs.faa.gov/browse/excelExternalWindow/40631359CF8BD8D286256A38004C6C28.0001
- DRS record last changed: May 30, 2024
- Page: https://openairdocs.org/ad/70-12-10

## The airworthiness directive

70-12-10 DORNIER, AG: Amdt. 39-1005. Applies to Model DO-28D-1 airplanes with Serial Numbers 0401, and 4002 through 4039.

To prevent disconnection of the right hand elevator trim tab system, within the next 50 hours' time in service after the effective date of this AD, unless already accomplished, replace washer P/N MS20002-C5 on the right hand elevator trim tab actuator bellcrank with a larger washer P/N 28.01.303 -111.43 in accordance with Dornier Alert Service Bulletin A024-1303, dated 23 February 1970, or later ARB-approved issue or an FAA-approved equivalent.

This amendment becomes effective June 11, 1970.

## Affected data sheets (1) (OpenAirDocs)

The type certificate data sheets whose models the AD names.

- [TCDS A16EU](https://openairdocs.org/tcds/A16EU): General Atomics AeroTec Systems GmbH; names 1 of 8 models: Do 28 D-1

## 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: 1 (1 by airframe model, 0 by engine model)
- Makers: Dornier 1

Models with the most aircraft:

- [Dornier DO 28 D-1](https://openairdocs.org/model/dornier-do-28-d-1): 1 aircraft (airframe model)

All 1 models: https://openairdocs.org/ad/70-12-10/models.md
Every aircraft: https://openairdocs.org/ad/70-12-10/aircraft.md

Its text cites no advisory circulars or STCs.

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