Commonwealth legislation

AD/GAF-N22/61 Amdt 1 - Trim Tab Hinge

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Commonwealth

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legislative instrument

Plain English Summary

3/10 complexity

Requires inspection and, if needed, replacement of the horizontal‑stabiliser trim tab hinge on specific GAF Nomad aircraft (S/N N22S‑159 to N22S‑165) by following ASTA Nomad Alert SB ANMD‑55‑25 Parts 1 and 2. Operators must inspect within 10 hours TIS and complete any hinge replacement within 200 hours TIS after 6 June 1990 to address a reported risk of trim‑tab binding and overstress of the linkage.

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AD/GAF-N22/61 Amdt 1 - Trim Tab Hinge

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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GAF N22 and N24 Series Aeroplanes

AD/GAF-N22/61

Amdt 1

Trim Tab Hinge 6/91

Applicability: Nomad series aircraft with S/Nos N22S-159 to N22S-165 inclusive, incorporating Mod N663.

Requirement: Action in accordance with ASTA Nomad Alert SB ANMD-55-25 Parts 1 and 2.

Compliance: For Part 1. In accordance with initial issue of this Directive: Prior to exceeding 10 hours time in service after 6 June 1990.

For Part 2. In accordance with initial issue of this Directive: Prior to exceeding 200 hours time in service after 6 June 1990.

The effective date of this amendment is 13 June 1991.

Background: A condition may exist where the trim tab position of the horizontal stabilizers is incorrect, leading to a possibility of binding and overstress of the trim tab linkage with the stabilizer and trim setting at certain positions.

This Amendment is raised to introduce a Revision of the Requirement document, which issues the accomplishment instructions for Part 2; replacement of the trim tab hinge.

Source text

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

1 AD/GAF-N22/61 Amdt 1 - Trim Tab Hinge