{"id":"F2006B03069","name":"AD/B747/167 Amdt 1 - Section 41 Bonded Skin Panels","slug":"ad-b747-167-amdt-1-section-41-bonded-skin-panels","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":42428,"registerId":"commonwealth-F2006B03069-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/B747/167 Amdt 1 - Section 41 Bonded Skin Panels","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBoeing 747 Series Aeroplanes\n\nAD/B747/167\n\nAmdt 1\n\n  \nSection 41 Bonded Skin Panels 3/97\n\nApplicability: Model 747 series aircraft; line numbers 1 through 200 on which the skin panel replacement specified in Boeing Service Bulletin 747-53A2321 has been accomplished; line numbers 201 through 430 that have been modified by Boeing to a Stretched Upper Deck (SUD) configuration; and line numbers 431 through 1075.\n\nRequirement: Action IAW the technical requirements of FAA AD 96-23-02 Amdt 39-9807.\n\nNote: Boeing Service Bulletins 747-53A2409, 747-53A2321, and 747-53-2272 refer.\n\nCompliance: As specified in the Requirement Document with an effective date of 27 February 1997.\n\nThis amendment becomes effective on 27 February 1997.\n\nBackground: The FAA received a report of skin cracking due to disbonding of the internal doubler of the cracked skin panels. The actions required by this Directive are intended to prevent rapid decompression of the aircraft due to disbonding and subsequent cracking of the skin panels.\n\nAmendment 1 corrects an error with the effective date of the AD. The new effective date is now 27 February 1997.\n\nThe original issue of this Airworthiness Directive was issued on 18 December 1996.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2239},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment is purely administrative, correcting only the effective date to 27 February 1997. It does not alter the substantive safety requirements, applicability criteria, or compliance actions from the original December 1996 Directive."},"complexity_factors":["Requirement is incorporated by reference to external FAA Airworthiness Directive 96-23-02 rather than stated explicitly","Applicability is conditional on specific aircraft line numbers and modification history (Stretched Upper Deck conversion)","References to three separate Boeing Service Bulletins for technical procedures","Technical aviation terminology requiring specialized knowledge (disbonding, doubler, Section 41)"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of specified Boeing 747 line numbers (including certain early builds, SUD‑modified 201–430, and 431–1075) to perform FAA‑mandated inspections and repairs to address disbonding of internal skin doublers that can lead to cracking and rapid cabin decompression. Amendment 1 corrects a paperwork error and sets the compliance effective date to 27 February 1997."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels","history":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels/history","analysis":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels/analysis","conflicts":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels/conflicts","importantCases":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels/important-cases","documents":"/api/acts/ad-b747-167-amdt-1-section-41-bonded-skin-panels/documents"}}