{"id":"F2008L01516","name":"AD/B737/325 - Supplemental Structural Inspection Program - 2","slug":"ad-b737-325-supplemental-structural-inspection-program-2","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":119912,"registerId":"commonwealth-F2008L01516-current","compilationNumber":null,"startDate":"2026-04-03","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/B737/325 | Supplemental Structural Inspection Program - 2 | 6/2008 |\n| ----------- | ---------------------------------------------- | ------ |\n\n| Applicability: | All Model 737-200C series aircraft.                                                                                                                                                                                                                                                                                                                                                                                                                                                                |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with the technical requirements of FAA AD 2008-08-23 Amdt 39-15477.Accomplishing the actions required by paragraph (g) of FAA AD 2008-08-23 and the initial inspections required by paragraph (h), ends the requirements of AD 98-11-04 R1 (AD/B737/12 Amdt 1), for Model 737-200C aircraft only.                                                                                                                                                                             |\n| Compliance:    | As specified in the Requirement document.                                                                                                                                                                                                                                                                                                                                                                                                                                                          |\n|                | This Airworthiness Directive becomes effective on 5 June 2008.                                                                                                                                                                                                                                                                                                                                                                                                                                     |\n| Background:    | This Directive requires revising the FAA-approved maintenance inspection program to include inspections that will give no less than the required damage tolerance rating for each structural significant item (SSI), doing repetitive inspections to detect cracks of all SSIs, and repairing cracked structure. This Directive results from a report of incidents involving fatigue cracking in transport category aircraft that are approaching or have exceeded their design service objective. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n23 April 2008","sortOrder":0},{"sectionNumber":"AD/B737/325","sectionType":"part","heading":"AD/B737/325","content":"## AD/B737/325","sortOrder":1},{"sectionNumber":"Supplemental Structural Inspection Progr","sectionType":"part","heading":"Supplemental Structural Inspection Program - 2","content":"## Supplemental Structural Inspection Program - 2","sortOrder":2},{"sectionNumber":"6/2008","sectionType":"part","heading":"6/2008","content":"## 6/2008","sortOrder":3}],"analysis":{"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"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This instrument maintains its original narrow scope. It applies only to the specific Boeing 737-200C variant and addresses a discrete safety issue (structural fatigue inspection). The reference to superseding an earlier AD for the same aircraft type represents normal regulatory evolution rather than scope creep."},"complexity_factors":["Short, single-purpose instrument (approximately 250 words)","Only 1 defined applicability criterion (Model 737-200C series)","Heavy reliance on external document (FAA AD 2008-08-23) — actual technical requirements not reproduced in the instrument itself","Simple conditional logic: compliance with paragraph (g) and initial inspections under paragraph (h) triggers termination of earlier AD/B737/12","No nested exceptions or elaborate compliance calculations","Standardised CASA AD format with predictable structure"],"plain_english_summary":"This AD requires operators and maintenance organisations of Boeing 737-200C aircraft to update maintenance programs to include damage‑tolerance structural inspections, recurring checks of critical components, and mandatory repairs of any cracks found. It targets aging, cargo‑convertible 737‑200Cs that may have exceeded original design life and aims to prevent fatigue‑related failures. The directive adopts FAA AD 2008‑08‑23 and makes those inspection requirements legally binding in Australia."},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":true,"description":"The Directive replaces the previous AD compliance pathway for Model 737-200C aircraft by requiring action in accordance with FAA AD 2008-08-23; accomplishing the FAA AD paragraphs specified (g) and (h) terminates the prior AD 98-11-04 R1 obligations for those aircraft (Requirement). This shifts compliance from the earlier Australian AD framework to the FAA-prescribed inspection regime while keeping applicability limited to 737-200C (Applicability / Requirement)."},"complexity_factors":["Cross-reference to an external instrument (FAA AD 2008-08-23) for technical requirements and procedures (Requirement).","Terminates prior Australian AD (AD 98-11-04 R1 / AD/B737/12 Amdt 1) for Model 737-200C upon completion of specified actions, creating a conditional change in compliance obligations (Requirement).","Requires revision of the FAA-approved maintenance inspection program to meet damage-tolerance ratings for each structural significant item (SSI), a technical standard that may require engineering judgement and documentation (Background).","Mandates repetitive inspections and repairs of cracked structure, which impose recurring operational and maintenance costs and scheduling impacts on operators (Background).","Compliance timing and the detailed inspection/repair methods are contained in the referenced FAA AD and the Requirement document rather than fully spelled out here, increasing dependency on the external text (Compliance / Requirement).","Applicability is narrowly focused (all Model 737-200C series aircraft), reducing scope breadth but concentrating burden on that operator cohort (Applicability).","Effective date and administrative delegation are specified (effective 5 June 2008; signature by Delegate), giving a firm compliance start and limited administrative discretion (Compliance / signature line)."],"plain_english_summary":"This Directive requires operators of all Boeing 737-200C aircraft to revise their FAA-approved maintenance inspection programs to include the inspections specified in FAA AD 2008-08-23, carry out repetitive inspections of structural significant items (SSIs), and repair any cracks found. Compliance follows the FAA AD's technical requirements; completing the specified initial inspections also ends the older AD 98-11-04 R1 for 737-200C aircraft. Operators bear the inspection and repair costs and must update maintenance programs by 5 June 2008."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2","history":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2/history","analysis":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2/analysis","conflicts":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2/conflicts","importantCases":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2/important-cases","documents":"/api/acts/ad-b737-325-supplemental-structural-inspection-program-2/documents"}}