AD/B747/50 - Inboard Pylon Upper Link
1AD/B747/50 - Inboard Pylon Upper Link
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Image unavailable in extracted text 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:
- 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.