{"id":"F2017L00395","name":"AD/IAI-W/15 Amdt 1 - Structural Inspection Program","slug":"ad-iai-w-15-amdt-1-structural-inspection-program","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":96119,"registerId":"commonwealth-F2017L00395-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Israel Aircraft Industries 1123 and 1124","sectionType":"part","heading":"Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes","content":"# Israel Aircraft Industries 1123 and 1124 (Westwind) Series Aeroplanes\n\n| AD/IAI-W/15 Amdt 1 | Structural Inspection Program | 8/2017 |\n| ------------------ | ----------------------------- | ------ |\n\n| Applicability: | All models of Israel Aircraft Industries 1123 and 1124 Series Aeroplanes.                                                                                                                                                                                                                                                                                                                                                                                                                                               |\n| -------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Incorporate the Inspection Requirements of Israel Aircraft Industries (IAI) Structural Inspection Program, as in force from time to time, into section 5 of the aircraft’s maintenance manual.2. Comply with the instructions in the Structural Inspection Document.Note 1: Israeli CAA Airworthiness Directive AD No. 91-01 dated 11 March 1991 refers (the AD).Note 2: A reference in this AD to a document being in force from time to time, is a reference only to the latest / current version of the document. |\n| Compliance:    | 1. From the effective date of this AD.2. As detailed in the Structural Inspection Document.                                                                                                                                                                                                                                                                                                                                                                                                                             |\n|                | This AD commences on 14 April 2017.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |\n| Background:    | IAI, the aircraft manufacturer, has developed a Structural Inspection Program for the Westwind aircraft to detect cracks which may develop in various locations of the structure. Undetected cracks may lead to loss of pressure or loss of integrity of the structure.Amendment 1 is issued to require inspection in accordance with the latest version of the IAI Structural Inspection Program.                                                                                                                      |\n\n![](image.001.jpeg)\n\nPieter van Dijk  \nDelegate of the Civil Aviation Safety Authority\n\n6 April 2017","sortOrder":0},{"sectionNumber":"AD/IAI-W/15 Amdt 1","sectionType":"part","heading":"AD/IAI-W/15 Amdt 1","content":"## AD/IAI-W/15 Amdt 1","sortOrder":1},{"sectionNumber":"Structural Inspection Program","sectionType":"part","heading":"Structural Inspection Program","content":"## Structural Inspection Program","sortOrder":2},{"sectionNumber":"8/2017","sectionType":"part","heading":"8/2017","content":"## 8/2017","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"Amendment 1 requires compliance with the latest IAI Structural Inspection Program but does not expand applicability beyond all 1123/1124 models listed in the original AD. The change updates the versioning mechanism (operators must adopt future revisions) rather than altering which aircraft are covered (Background; Requirement Note 2; Applicability)."},"complexity_factors":["Applicability to all IAI 1123 and 1124 models creates a fleet‑wide compliance obligation (Applicability).","Requirement to incorporate an external document into the maintenance manual and to ‘comply with the instructions’ imposes operational and record‑keeping work for operators and maintenance organisations (Requirement 1–2).","Reference to the IAI Structural Inspection Program ‘as in force from time to time’ creates an ongoing obligation to track and adopt future revisions (Requirement Note 2).","Compliance is effective immediately from the AD’s commencement date, producing short lead time for implementation (Compliance; AD commencement 14 April 2017).","The Structural Inspection Document contains the substantive inspection detail, so legal compliance depends on that external technical document rather than the AD text (Requirement 2; Structural Inspection Document).","Enforcement and formal issuance by the CASA delegate signal regulatory oversight and potential inspection/enforcement activity (signature/issuance)."],"plain_english_summary":"This airworthiness directive requires owners/operators of Israel Aircraft Industries 1123 and 1124 (Westwind) aeroplanes to add the IAI Structural Inspection Program to their maintenance manual and to carry out its inspection instructions. IAI supplies the program (the AD binds the latest version), so operators pay to update manuals and perform inspections while CASA enforces compliance from 14 April 2017."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This AD maintains its original narrow scope: mandating structural inspections for Westwind aircraft. Amendment 1 simply updates the mechanism to ensure operators use the latest manufacturer guidance rather than a static version. The scope has not expanded beyond aircraft safety maintenance."},"complexity_factors":["Short, single-purpose instrument (approximately 300 words)","Only 2 substantive requirements with clear compliance dates","Minimal defined terms (only standard aviation terminology like 'AD' and 'IAI')","Simple cross-reference to external manufacturer document (Structural Inspection Program) rather than complex legislative cross-referencing","No nested exceptions or conditional logic — requirements apply uniformly to all applicable aircraft","Straightforward 'as in force from time to time' incorporation mechanism avoids version-locking complexity"],"plain_english_summary":"This CASA Airworthiness Directive requires operators of Israel Aircraft Industries Westwind 1123/1124 aircraft to add and comply with IAI’s structural inspection program in their maintenance manuals, and to always use the program “as in force from time to time” (i.e., the latest version). It targets Australian operators to detect structural cracks that could cause loss of cabin pressure or structural failure, ensuring ageing aircraft remain safe."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program","history":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program/history","analysis":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program/analysis","conflicts":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program/conflicts","importantCases":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program/important-cases","documents":"/api/acts/ad-iai-w-15-amdt-1-structural-inspection-program/documents"}}