Commonwealth legislation

AD/DHC-6/63 - Gust Lock Assembly

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The Civil Aviation Safety Authority requires certain DHC‑6 (Twin Otter) aeroplanes (serials 1–690, 692, 693, 695, 696) to be inspected and modified per Boeing Canada Service Bulletin 6/508 before 31 July 1990 to prevent takeoff with a gust lock engaged. It affects owners/operators and maintenance organisations, who must schedule, pay for and carry out the mandated work to meet the safety deadline and avoid regulatory non‑compliance.

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AD/DHC-6/63 - Gust Lock Assembly

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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 DHC-6 (Twin Otter) Series Aeroplanes

AD/DHC-6/63 Gust Lock Assembly 3/90 DM

Applicability: S/Nos 1 to 690, 692, 693, 695 and 696. Requirement: Action in accordance with Boeing Canada SB 6/508.

Note: Canadian AD CF-90-01 refers.

Compliance: Prior to 31 July 1990.

Background: Three instances have been reported where aircraft took off with pre-mod 6/1676 gust locks still engaged.

Source text

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