COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Boeing 747 Series Aeroplanes
AD/B747/17
Amdt 2
Inboard Engine Strut-To-Diagonal Brace Attach Fitting
1/96
Applicability: Model 747 series aircraft as listed in Boeing Service Bulletin (SB) 747-54-2062 Rev.
7.
Requirement: Inspect the inboard strut-to-diagonal brace fittings for cracking in accordance with FAA AD 95-20-05 Amdt 39-9383.
Note: Boeing SB 747-54-2062 Rev. 7 refers.
Compliance: As specified in the Requirement Document with a revised effective date of 4 January 1996.
Background: A number of operators reported cracked fittings found in service. Amendment 1 reflected the revision status of SB 54-2062 which allowed terminating action including installation of a cover plate to seal a gap in the web. Amendment 2 is issued in response to reports of cracking and severing of the attach fittings. This amendment expands the applicability and requires an additional inspection.