AD/B747/50 - Inboard Pylon Upper Link

Administered by Department of Infrastructure, Transport, Regional Development, Communications, Sport and the Arts

Legislation au F2006B03231 In force Legislative Instrument

Legislation content

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Boeing 747 Series Aeroplanes

 

AD/B747/50  Inboard Pylon Upper Link 6/86 Applicability:              All models, line No’s 1 to 616, with JT9D-3 or -7, or CF6-45 or -50 engine struts. Requirement:               Inspect in accordance with:

  1. FAA AD 86-07-06 (Sections A and C) or,

 

2.    Boeing Service Bulletin 747-54-2111, Revision 1.

 

Compliance: As detailed in Requirement Document No. 1. until modified in accordance with Requirement Document No.2.

 

Background: Cracks have occurred in the forward lug of the inboard pylon upper link. If not corrected, this could result in separation of an engine from an aircraft.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.