Commonwealth legislation

AD/B767/11 - Main Landing Gear Drag Brace Upper Spindle

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This Act has been repealed and is no longer in force. It is retained for historical reference.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

2/10 complexity

A safety order requires operators of certain Boeing 767s with affected drag-brace upper spindles to inspect or replace that part per Boeing Service Bulletin 767-32-0044 before the aircraft reaches 9,000 landings. The spindles have a manufacturing defect that can cause fatigue cracking and a possible landing-gear collapse, creating a serious crash risk for affected aircraft.

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AD/B767/11 - Main Landing Gear Drag Brace Upper Spindle

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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 Boeing 767 Series Aeroplanes

AD/B767/11 Main Landing Gear Drag Brace Upper Spindle 6/86

Applicability: All models with line positions 2 to 34, 36 to 62, and 64. Requirement: Action in accordance with Boeing SB No. 767-32-0044. Compliance: Before exceeding 9,000 landings.

Background: After a fracture occurred on the fatigue test, it was discovered that the root radius on the spindle threads was undersize. The manufacturer suspects that this problem may occur on all spindles with S/Nos. from HM0001 to HM0133. This AD has been raised because SB 767-32-0044 has been identified by the 767 Maintenance Planning Document as having flight safety implications.

Source text

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