{"id":"F2008L02567","name":"AD/B737/333 - Supplemental Structural Inspection","slug":"ad-b737-333-supplemental-structural-inspection","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74572,"registerId":"commonwealth-F2008L02567-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Boeing 737 Series Aeroplanes","sectionType":"division","heading":"Boeing 737 Series Aeroplanes","content":"### Boeing 737 Series Aeroplanes\n\n| AD/B737/333 | Supplemental Structural Inspection | 8/2008 |\n| ----------- | ---------------------------------- | ------ |\n\n| Applicability: | All Model 737-100, -200, and -200C series aircraft.                                                                                                                                                                                                                                                                                              |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2008-11-03 Amdt 39-15525.                                                                                                                                                                                                                                                         |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of31 July 2008.                                                                                                                                                                                                                                                          |\n|                | This Airworthiness Directive becomes effective on 31 July 2008.                                                                                                                                                                                                                                                                                  |\n| Background:    | The FAA received a report of incidents involving fatigue cracking in transport category aircraft that are approaching or have exceeded their design service objective. The actions required by this Directive are intended to maintain the continued structural integrity of the entire fleet of Model 737-100, -200, and -200C series aircraft. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n19 June 2008","sortOrder":0},{"sectionNumber":"AD/B737/333","sectionType":"part","heading":"AD/B737/333","content":"## AD/B737/333","sortOrder":1},{"sectionNumber":"Supplemental Structural Inspection","sectionType":"part","heading":"Supplemental Structural Inspection","content":"## Supplemental Structural Inspection","sortOrder":2},{"sectionNumber":"8/2008","sectionType":"part","heading":"8/2008","content":"## 8/2008","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard airworthiness directive adopting an FAA safety order. It has not expanded beyond its original purpose of ensuring structural integrity of aging aircraft."},"complexity_factors":["Very short document (under 300 words)","Only 1 substantive requirement: comply with an external FAA directive","No defined terms section — relies entirely on the referenced FAA document","No conditional logic or exceptions within the text itself","Single compliance date with no alternative pathways"],"plain_english_summary":"This Airworthiness Directive mandates extra structural inspections on older Boeing 737-100, -200 and -200C airframes to detect fatigue cracking discovered in long‑flown, pressurised aircraft. It adopts the inspection procedures of FAA AD 2008‑11‑03 and requires completion by 31 July 2008.\n\nIt affects Australian operators, owners and maintenance engineers of these vintage 737s — intended to catch cracks early and prevent possible structural failure."},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive does not indicate a change of scope from its stated purpose. It continues to apply to all Model 737-100, -200 and -200C aircraft and mandates action in accordance with FAA AD 2008-11-03 to address fatigue cracking and maintain structural integrity (Applicability; Requirement; Background)."},"complexity_factors":["Cross-reference to an external FAA AD (FAA AD 2008-11-03) rather than containing full technical content here — requires users to consult another document for details (Requirement).","Broad, fleet‑level applicability covering all Model 737-100, -200 and -200C aircraft — increases operational reach though not legal nuance (Applicability).","Compliance timing and an explicit revised effective date impose scheduling constraints on operators (Compliance).","Technical and specialist nature of inspections and repairs requires qualified maintenance resources and potential downtime, creating logistical complexity (Requirement; Background).","Limited text here leaves implementation detail and judgment to operators and maintainers following FAA procedures, which can create coordination and interpretation needs (Requirement)."],"plain_english_summary":"This Airworthiness Directive requires operators of Boeing 737-100, -200 and -200C aircraft to carry out supplemental structural inspections in accordance with FAA AD 2008-11-03. It becomes effective 31 July 2008. (Requirement; Applicability; Compliance)\n\nIt affects aircraft operators and maintenance providers, who must plan, perform and pay for inspections and any necessary repairs to address fatigue cracking reported in ageing aircraft. (Background; Requirement)"},"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-b737-333-supplemental-structural-inspection","history":"/api/acts/ad-b737-333-supplemental-structural-inspection/history","analysis":"/api/acts/ad-b737-333-supplemental-structural-inspection/analysis","conflicts":"/api/acts/ad-b737-333-supplemental-structural-inspection/conflicts","importantCases":"/api/acts/ad-b737-333-supplemental-structural-inspection/important-cases","documents":"/api/acts/ad-b737-333-supplemental-structural-inspection/documents"}}