Document ID: chunk:federal_register_of_legislation:F2006B03218:body:0
Version: federal_register_of_legislation:F2006B03218
Segment Type: other
Provision Reference: 
Character Range: 0–1342

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

 Boeing 747 Series Aeroplanes

 AD/B747/38
 Amdt 4

 Body Station 1241 Bulkhead Splice 6/95

            Applicability: Boeing B747 aircraft Serial Number 1-675, 677- 678, 680-684, 686-689 in 18 groups as listed in Boeing Service Bulletin (SB) 747-53-2283, Revision 4.

            Requirement: Inspect, visually, by eddy current and ultrasonically, the body station (BS) 1241 splice strap and forging in accordance with Boeing SB 747-53-2283, Revision 4.

            Note: FAA AD 92-08-02 refers.

            Compliance: Inspect at the thresholds & intervals specified in Boeing SB 747-53-2283, Rev 4. The effective date of changes introduced by this Amendment is 25 May 1995.

            Background: Cracks have been found in the BS 1241 splice strap and forging, even on aircraft which have been modified to SB 747-53-2219 or the production equivalent.
            Undetected cracking could lead to loss of cabin pressure and structural failure.

            This Amendment references the latest FAA AD and Revision 4 of the actioning document, SB 747-53-2283, which requires additional inspections in response to the recommendations of the Ageing Fleet B747 Structures Working Group.