Document ID: chunk:federal_register_of_legislation:F2006B02675:body:0
Version: federal_register_of_legislation:F2006B02675
Segment Type: other
Provision Reference: 
Character Range: 0–1076

COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
 SCHEDULE OF AIRWORTHINESS DIRECTIVES

 Boeing 727 Series Aeroplanes

AD/B727/153 Main Landing Gear Manual Extension Gearbox 6/98

 Applicability: All Model 727 series aircraft.

            Requirement: Inspect in accordance with the technical requirements of FAA AD 98-04-29 Amdt 39- 10341.

            Note: Boeing Service Bulletin 727-32-279 refers.

            Compliance: Before 21 November 1998 for the initial inspection and thereafter in accordance with FAA AD 98-04-29 Amdt 39-10341.

            This airworthiness directive becomes effective on 21 May 1998.

            Background: The FAA received a report indicating that a manual gearbox assembly which contained an incorrect housing, was installed on a Model 727 series aircraft. Incorrect housings are manufactured from 7079-T6 aluminium and may fail as a result of stress corrosion cracking, and ultimately result in an inability to lock the main landing gear in a down position during landing.