{"id":"F2009L00082","name":"AD/B747/220 Amdt 1 - Body Station 1265 Edge Frame","slug":"ad-b747-220-amdt-1-body-station-1265-edge-frame","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76492,"registerId":"commonwealth-F2009L00082-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 747 Series Aeroplanes","sectionType":"division","heading":"Boeing 747 Series Aeroplanes","content":"### Boeing 747 Series Aeroplanes\n\n| AD/B747/220 Amdt 1 | Body Station 1265 Edge Frame | 2/2009 |\n| ------------------ | ---------------------------- | ------ |\n\n| Applicability: | Model 747 series aircraft, as listed in Boeing Alert Service Bulletin 747-53A2416, Revision 1, dated 6 May 1999 or later FAA approved revision.                                                                                                                                                                                                                                                                                                                                                                                                                                        |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2000-02-10 Amdt 39-11529.Note: Boeing Alert Service Bulletin 747-53A2416, Revision 1, dated 6 May 1999 or later FAA approved revision, refers.Corrective actions (repairs or repeat inspections) that are approved on an FAA form 8100-9 and approved by the Manager, Seattle Aircraft Certification Office or delegate as an Alternative Method of Compliance (AMOC) to the requirements of FAA AD 2000-02-10, may be carried out without the need to obtain an exclusion from CASA from this airworthiness directive. |\n| Compliance:    | As specified in the requirement document.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |\n|                | This Amendment becomes effective on 12 February 2009.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |\n| Background:    | The FAA received reports of fatigue cracks at the inner chord and web of the body station 1265 edge frame between stringers 23 and 27. Such cracking could result in rapid decompression of the aircraft.This amendment allows the use of an FAA approved Alternative Method of Compliance (AMOC) to the requirements of this AD, without the need for the operator to continually apply for an exclusion for repairs that are already approved on a form 8100-9 as an AMOC by an FAA delegate.The original issue of this AD became effective on 20 April 2000.                        |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n18 December 2008","sortOrder":0},{"sectionNumber":"AD/B747/220 Amdt 1","sectionType":"part","heading":"AD/B747/220 Amdt 1","content":"## AD/B747/220 Amdt 1","sortOrder":1},{"sectionNumber":"Body Station 1265 Edge Frame","sectionType":"part","heading":"Body Station 1265 Edge Frame","content":"## Body Station 1265 Edge Frame","sortOrder":2},{"sectionNumber":"2/2009","sectionType":"part","heading":"2/2009","content":"## 2/2009","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"This amendment expands procedural scope: it permits FAA‑approved AMOCs documented on FAA Form 8100‑9 and approved by the Manager, Seattle ACO or delegate to be used without operators seeking a CASA exclusion. The underlying inspection and repair requirements remain those of FAA AD 2000‑02‑10 and the referenced Boeing service bulletin; the change primarily alters approval and administrative processes (Requirement / Background)."},"complexity_factors":["Cross-reference to an external FAA AD (FAA AD 2000-02-10) rather than standalone technical requirements (Requirement).","Dependence on a manufacturer service bulletin (Boeing Alert SB 747-53A2416 Rev 1) for applicability and technical details (Applicability / Requirement).","Allowance of Alternative Methods of Compliance (AMOCs) requires specific FAA documentation (Form 8100-9) and FAA managerial approval (Manager, Seattle Aircraft Certification Office or delegate) — introduces inter‑jurisdictional approval pathway (Requirement / Background).","Operational compliance burden remains with operators to perform inspections/repairs per the FAA AD timetable (Compliance).","Regulatory coordination reduces CASA’s exclusion-processing workload but increases reliance on FAA delegates’ technical decisions (Background / Requirement).","Potential for variable implementation timing across operators depending on when AMOCs are approved and applied (Compliance / Background)."],"plain_english_summary":"This airworthiness directive for Boeing 747 series aircraft requires operators to follow FAA AD 2000-02-10 (and the referenced Boeing service bulletin) to inspect and repair fatigue cracking at the body station 1265 edge frame. The amendment mechanically permits use of FAA‑approved Alternative Methods of Compliance (AMOCs) recorded on FAA Form 8100‑9 and approved by the Manager, Seattle Aircraft Certification Office or delegate, without needing a separate CASA exclusion. It affects 747 operators, maintenance organisations and certifying authorities because it changes approval and administrative procedures for repairs."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: addressing fatigue cracks in a specific structural component of Boeing 747 aircraft. The amendment does not expand the scope; it merely streamlines the administrative process for alternative compliance methods. The substantive safety requirement (inspecting and repairing the edge frame) remains unchanged from the original 2000 directive."},"complexity_factors":["Short, single-purpose instrument (approximately 250 words)","Only 2 substantive operative paragraphs (Applicability and Requirement)","Heavy reliance on external documents (FAA AD 2000-02-10, Boeing Service Bulletin 747-53A2416) — the actual technical requirements are not contained in the instrument itself","Single amendment with straightforward purpose (removing need for CASA exclusions for FAA-approved AMOCs)","Minimal defined terms (only standard aviation acronyms like AMOC, CASA, FAA)","No nested exceptions or conditional logic beyond the basic applicability criteria"],"plain_english_summary":"This is an **airworthiness directive** (a mandatory safety order) for **Boeing 747 aircraft**. It requires airlines to inspect and fix a specific structural problem: **fatigue cracks** in a frame near the middle of the fuselage (called \"body station 1265\"). These cracks could cause the cabin to suddenly lose pressure.\n\n**What changed in this amendment:** Previously, if an airline wanted to use an alternative repair method already approved by American aviation authorities (FAA), they had to ask Australia's CASA for permission each time. This amendment removes that red tape — airlines can now use those FAA-approved alternative repairs immediately, without extra paperwork to CASA.\n\n**Who it affects:** Operators of Boeing 747 series aircraft covered by a specific Boeing service bulletin.\n\n**Why it matters:** It keeps passengers safe from potential rapid decompression while reducing administrative burden on airlines."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"}},"importantCases":[],"_links":{"self":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame","history":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame/history","analysis":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame/analysis","conflicts":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame/conflicts","importantCases":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame/important-cases","documents":"/api/acts/ad-b747-220-amdt-1-body-station-1265-edge-frame/documents"}}