Commonwealth legislation

AD/DHC-8/53 - Roll Disconnect System

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Commonwealth

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legislative instrument

Plain English Summary

2/10 complexity

The Civil Aviation Safety Authority mandates installation of Modification 8/2376 to the roll disconnect system on specified Bombardier (de Havilland DHC‑8) aeroplanes (serials 3–433). Operators/owners must pay for and complete the modification per de Havilland Service Bulletin 8‑27‑79, Revision A by the directive’s compliance date.

The action responds to reported uncommanded roll disconnects during landing and aligns with a related Transport Canada AD.

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AD/DHC-8/53 - Roll Disconnect System

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes

AD/DHC-8/53 Roll Disconnect System 6/98

Applicability: DHC-8 aircraft, Models 102, 103, 106, 201, 202, 301, 311, 314, and 315, with serial

numbers 3 through 433.

Requirement: Install Modification 8/2376 in accordance with de Havilland Service Bulletin 8-27- 79, Revision A.

Note: Transport Canada AD CF-98-04 refers.

Compliance: Before 21 November 1998.

This airworthiness directive becomes effective on 21 May 1998.

Background: Several incidents have been reported of uncommanded roll system disconnects during landing.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.