Commonwealth legislation

AD/VAT/33 - Control Column Bearing Spigot Bolt - Inspection

In ForceCTH

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Commonwealth

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legislative instrument

Plain English Summary

2/10 complexity

This directive requires owners/operators of Victa/A.E.S.L. Airtourer 100 and 115 aeroplanes to inspect the control‑column torque‑tube thread at P/N 31724/1 to verify it meets specified minimum thread dimensions, within 100 flight hours from 6 Oct 1968 or before installing the part thereafter. It is a narrowly targeted, one‑off maintenance mandate that shifts inspection cost, scheduling and any subsequent repair/replacement decisions to operators, with measurement method left to the inspector.

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AD/VAT/33 - Control Column Bearing Spigot Bolt - Inspection

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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 Victa and A.E.S.L. Airtourer Series Aeroplanes

AD/VAT/33 Control Column Bearing Spigot Bolt - Inspection 10/68

Applicability: Airtourer 100 and 115.

Requirement: Inspect the control column torque tube near bearing spigot bolt P/N 31724/1 for conformity with 6/15-24 WNF-2A threadform.

Note: The outside diameter of this thread should be 0.3042 inches minimum and the root diameter should be 0.2536 inches minimum.

Compliance: Within 100 hours time in service after 6 October 1968 or before installation after 6 October 1968 whichever occurs first.

Source text

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