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Instrument
Instrument identification
COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
DHA-3 (Drover) Series Aeroplanes
AD/DHA-3/28 Centre Section Main Spar Upper Boom
Attach Fitting - Inspection
3/74
Applicability
Applicability
All models.
Requirement
Requirement
Visually inspect the visible spaces of the centre section main spar upper boom LH and RH wing attach fitting for cracks, particularly for those which may originate at the bushing holes of the front and rear lugs.
Compliance
Compliance
Before 1 May 1974, and thereafter at intervals not exceeding 1 year.