Commonwealth legislation

AD/B737/13 - Horizontal Stabilizer Centre Section

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

3/10 complexity

The directive mandates inspections for cracking in the horizontal stabilizer centre‑section lugs on specified early Boeing 737s, to be done exactly as Boeing Service Bulletin 737‑55A1029 Revision 3 prescribes. It affects owners, operators and the maintenance organisations that must perform and bill for the work. It matters because fatigue cracking was found overseas and undetected cracks risk stabilizer separation; operators bear inspection, repair and downtime costs.

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AD/B737/13 - Horizontal Stabilizer Centre Section

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source Boeing 737 Series Aeroplanes

AD/B737/13 Horizontal Stabilizer Centre Section 2/88

Applicability: All model 737 aircraft, Line Numbers 1 to 316, 323 and 324. Requirement: Inspect in accordance with Boeing SB 737-55A1029 Revision 3.

Note: FAA AD 84-23-05 refers.

Compliance: As detailed in the Requirement Document.

Background: Fatigue cracking has been detected in a lug on an overseas aircraft. Failure to detect cracks in these lugs may result in the separation of the horizontal stabilizer from the aircraft. This AD has been raised because SB 737-55A1029 has been listed in Section 9.0 of the 737 Supplemental Structural Inspection Document as having flight safety implications.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.