COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY SCHEDULE OF AIRWORTHINESS DIRECTIVES Boeing 747 Series Aeroplanes AD/B747/120 Amdt 1 Lower Lobe Cargo Doors and Main Deck Side Cargo Door 8/93 DM Applicability: Model 747 series; as listed in Boeing SB 747-52-2186, Revision 4, and Boeing ASB 747-52A2233. Requirement: Action in accordance with the technical requirements of FAA AD 93-10-01 Amendment 39-8580. Compliance: As specified in the requirement document. The compliance of the initial issue of this Directive remains unchanged. This Amendment is effective from 10 June 1993. Background: The FAA has received numerous reports of corroded or cracked fittings, cam latch bellcranks, and cam latches. Amendment 1 is issued in response to a final rule correction of FAA AD 93-06-03 which clarifies the compliance time for accomplishing optional repetitive inspections of the cam latches.