Commonwealth legislation

AD/DH 82/3 - Rudder Bar Attachment Spigot - Modification

RepealedCTH

This Act has been repealed and is no longer in force. It is retained for historical reference.

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

Owners and operators of DH 82 Tiger Moth aircraft must immediately modify the front and rear rudder bars to stop locking pins from slipping or jamming and risking loss of rudder control.

Specifically: drill new No.50 holes at 90° below the old spigot holes, permanently fill the existing athwartships holes with wire rivets, and refit using AGS No.1551 Mk.3 locking pins oriented front-to-back.

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AD/DH 82/3 - Rudder Bar Attachment Spigot - Modification

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

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DH 82 (Tiger Moth) Series Aeroplanes

AD/DH 82/3 Rudder Bar Attachment Spigot - Modification NK

Applicability: All models.

Requirement: 1. Modify the front and rear rudder bars by re-locating the connecting rod locking pins so that they cannot become unclipped or jammed by fouling the control box.

2. An approved method of effecting this modification is as follows:

(a) Drill a No. 50 hole at 90o to the existing athwartships holes in the front and rear rudder bar connecting rod attachment spigots. Ensure that the new holes are located centrally below the existing holes, sufficiently clear of the rudder bar connecting rod to permit free fitment of the locking pins in a fore and aft direction.

(b) Plug the existing holes with suitable wire rivets.

(c) When installing the rudder bar connecting rod, lock up the ends on to the rudder bar spigots with AGS No. 1551 Mk. 3 locking pins.

3. ANO 105.1.14.5.5.3.

Compliance: Forthwith.

Source text

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

1 AD/DH 82/3 - Rudder Bar Attachment Spigot - Modification