{"id":"F2006L00120","name":"AD/B737/12 Amdt 1 - Supplemental Structural Inspection Program","slug":"ad-b737-12-amdt-1-supplemental-structural-inspection-program","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":57993,"registerId":"commonwealth-F2006L00120-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/B737/12 Amdt 1 | Supplemental Structural Inspection Program | 2/2006 |\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 98-11-04 R1Amdt 39-10984.Note: Boeing Document No. D6-37089 Revision D, dated 1 June 1995, refers.                                                                                                                                                                                             |\n| Compliance:    | As specified in the Requirement document, with a revised effective date of16 February 2006.                                                                                                                                                                                                                                                                   |\n|                | This Amendment becomes effective on 16 February 2006.                                                                                                                                                                                                                                                                                                         |\n| Background:    | The Supplemental Structural Inspection Document has been produced to ensure the continued structural integrity of older Model 737 aircraft and, by follow-up action, maintain the continuing structural airworthiness of the whole Model 737 fleet.Amendment 1 is issued to introduce the latest FAA and Boeing documents that are related to this Directive. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n22 December 2005","sortOrder":0},{"sectionNumber":"AD/B737/12 Amdt 1","sectionType":"part","heading":"AD/B737/12 Amdt 1","content":"## AD/B737/12 Amdt 1","sortOrder":1},{"sectionNumber":"Supplemental Structural Inspection Progr","sectionType":"part","heading":"Supplemental Structural Inspection Program","content":"## Supplemental Structural Inspection Program","sortOrder":2},{"sectionNumber":"2/2006","sectionType":"part","heading":"2/2006","content":"## 2/2006","sortOrder":3}],"analysis":{"flash_summary_failed":{"failed":true,"reason":"Unauthenticated. Configure AI_GATEWAY_API_KEY or use a provider module. Learn more: https://ai-sdk.dev/unauthenticated-ai-gateway","source":"analysis-cron"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD does not broaden or narrow the set of affected aircraft: applicability remains all Model 737-100, -200 and 200C aircraft. Amendment 1 introduces updated FAA/Boeing reference documents and sets a revised effective date (see 'Applicability', 'Requirement' and 'Compliance'), so the change is to referenced material and timing rather than to scope."},"complexity_factors":["Cross-reference to external regulatory and manufacturer material (FAA AD 98-11-04 R1 / Amdt 39-10984 and Boeing D6-37089 Rev D) increases implementation complexity because the detailed inspection tasks and intervals are contained outside this instrument (Requirement).","Technical nature of structural inspection tasks (Supplemental Structural Inspection Program) requires specialised maintenance capability and judgement by operators and maintenance organisations (Background / Requirement).","Compliance timing and administrative enforcement: directive sets a revised effective date (16 February 2006) which operators must observe (Compliance).","Narrow applicability to specific older model series (737-100, -200, 200C) concentrates cost on a limited operator group, raising potential for uneven administrative burdens (Applicability).","Amendment mechanism: this instrument updates referenced documents rather than restating technical detail, so ongoing changes to FAA/Boeing documents can alter operator obligations without a full reissue of this AD (Background / Requirement)."],"plain_english_summary":"This directive requires operators of Boeing 737-100, -200 and 200C aircraft to carry out the Supplemental Structural Inspection Program set out in FAA AD 98‑11‑04 R1 (referencing Boeing D6‑37089 Rev D), with a revised effective date of 16 February 2006. The Civil Aviation Safety Authority enforces the requirement. It is intended to preserve the structural integrity of older 737s; operators pay for inspections and repairs, follow the mandated inspection schedules, and record compliance under the referenced FAA/Boeing documents."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment remains tightly focused on its original purpose: ensuring structural integrity of aging Boeing 737 aircraft through supplemental inspections. The amendment simply updates the referenced technical documents to current versions without expanding the scope beyond the original safety intent."},"complexity_factors":["Very short document (approximately 200 words)","Only 1 defined applicability criterion (specific aircraft models)","Single requirement referencing external technical documents rather than spelling out detailed procedures","No nested exceptions or conditional logic","No cross-references to other legislation beyond the cited FAA AD and Boeing document","Straightforward compliance date structure"],"plain_english_summary":"This Airworthiness Directive mandates a Supplemental Structural Inspection Program for Boeing 737-100, -200 and -200C aircraft operated in Australia, adopting FAA AD 98-11-04 and Boeing maintenance guidance (D6-37089 Rev D). It requires enhanced, periodic structural inspections for owners/operators of these older \"Classic\" 737s to detect fatigue and corrosion risks. Effective 16 February 2006."}},"importantCases":[],"_links":{"self":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program","history":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program/history","analysis":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program/analysis","conflicts":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program/conflicts","importantCases":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program/important-cases","documents":"/api/acts/ad-b737-12-amdt-1-supplemental-structural-inspection-program/documents"}}