AD/B747/62 Amdt 2 - Flap Carriage Spindles and Aft Link Assembly
1AD/B747/62 Amdt 2 - Flap Carriage Spindles and Aft Link Assembly
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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
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Boeing 747 Series Aeroplanes
AD/B747/62
Amdt 2
Flap Carriage Spindles and Aft Link Assembly 11/90
DM
Applicability: All models except 747 SP.
Requirement: Action in accordance with FAA AD 90-17-19 Amdt 39-6705 Paragraphs A and B. Compliance: In accordance with the Requirement Document.
Background: In an overseas incident, undetected stress corrosion caused failure of two spindles on one flap which resulted in severe handling difficulties. Fractured flap carriage aft links have also been detected overseas. Amendment 1 to this Directive references Revision 2 of the Requirement document which requires inspection and overhaul of aft link assemblies, additional inspections, revised compliance intervals and requirement to overhaul or replace spindles.
Amendment 2 requires additional work, i.e. internal inspection of the spindles. It also references the superseding FAA AD as the Requirement document due to the requirements and compliance diverging from the parent Boeing 747 SB-27-2280 Revision 3.