{"id":"F2007L01567","name":"AD/750XL/13 - Aileron Inboard Hinge Attachment","slug":"ad-750xl-13-aileron-inboard-hinge-attachment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":66078,"registerId":"commonwealth-F2007L01567-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Pacific Aerospace 750XL Series Aeroplane","sectionType":"division","heading":"Pacific Aerospace 750XL Series Aeroplanes","content":"### Pacific Aerospace 750XL Series Aeroplanes\n\n| AD/750XL/13 | Aileron Inboard Hinge Attachment | 7/2007 |\n| ----------- | -------------------------------- | ------ |\n\n| Applicability: | Model 750XL aircraft, serial numbers 101, 102, 104 through 120, and 122 through 129; except aircraft with modification PAC/XL/0285 incorporated.                                                                                                                                                                                              |\n| -------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Remove both ailerons, then inspect and modify the aileron spar at the inboard hinge attachment point in accordance with Pacific Aerospace Ltd Service Bulletin PACSB/XL/027.Note 1: Aileron removal, installation and rigging procedures are detailed in PAC 750XL Maintenance Manual Chapter 27-10-00.Note 2: NZ CAA AD DCA/750XL/13 refers. |\n| Compliance:    | Within 150 hours time in service or 6 months after 5 July 2007, whichever occurs first.                                                                                                                                                                                                                                                       |\n|                | This Airworthiness Directive becomes effective on 5 July 2007.                                                                                                                                                                                                                                                                                |\n| Background:    | The NZ CAA requires certain actions to prevent cracks developing in the aileron spar adjacent to the inboard hinge attachment.                                                                                                                                                                                                                |\n\n![](image.001.png)  \nDavid Punshon  \nDelegate of the Civil Aviation Safety Authority\n\n16 May 2007","sortOrder":0},{"sectionNumber":"AD/750XL/13","sectionType":"part","heading":"AD/750XL/13","content":"## AD/750XL/13","sortOrder":1},{"sectionNumber":"Aileron Inboard Hinge Attachment","sectionType":"part","heading":"Aileron Inboard Hinge Attachment","content":"## Aileron Inboard Hinge Attachment","sortOrder":2},{"sectionNumber":"7/2007","sectionType":"part","heading":"7/2007","content":"## 7/2007","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard, targeted Airworthiness Directive addressing a specific structural safety issue on a specific aircraft type. The scope remains precisely limited to the aileron spar inspection/modification requirement as originally intended. No scope creep is evident."},"complexity_factors":["Very short document (approximately 200 words)","Only 3 defined elements: specific aircraft model, serial number ranges, and one exempting modification number","Single, straightforward compliance requirement with clear mechanical instructions","Simple temporal compliance condition (hours OR date, whichever first)","No cross-references to other legislation or complex conditional logic","Background explanation is minimal but sufficient","Note references are to technical manuals (maintenance manual, service bulletin) rather than legislative instruments"],"plain_english_summary":"This CASA Airworthiness Directive requires owners/operators of specified Pacific Aerospace 750XL aircraft (S/N 101, 102, 104–120, 122–129) to remove both ailerons and inspect/modify the aileron spar at the inner hinge attachment to prevent cracking. Compliance is mandatory within 150 flight hours or six months after 5 July 2007; aircraft with PAC/XL/0285 installed are exempt. The action addresses a known risk to roll control and structural integrity."},"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"},"flash_summary":{"complexity_score":4,"scope_assessment":{"changed":false,"description":"The AD's scope aligns with its stated safety objective to prevent cracks adjacent to the inboard hinge. It targets specified serial numbers, excludes aircraft with modification PAC/XL/0285, and prescribes inspection/modification per Pacific Aerospace Service Bulletin PACSB/XL/027; there is no textual indication the scope departs from that original corrective intent."},"complexity_factors":["Narrow, serial-numbered applicability with an explicit exclusion for modification PAC/XL/0285 (Applicability) — increases need for fleet-level tracking.","Prescriptive mandatory work: removal of both ailerons and inspection/modification of the aileron spar at the inboard hinge (Requirement) — requires certified maintenance actions and technical skills.","Fixed compliance window: 150 hours time in service or six months after 5 July 2007 (Compliance) — creates scheduling and operational constraints for operators.","Dependence on external technical materials: Pacific Aerospace Service Bulletin PACSB/XL/027 and Maintenance Manual Chapter 27-10-00 are required for the detailed procedure (Requirement/Notes) — access to and adherence to those documents is necessary.","Cross-reference to overseas regulator action (NZ CAA AD DCA/750XL/13) (Note 2/Background) — introduces alignment with foreign-directed corrective action.","Low regulatory flexibility: specific remedial steps and deadlines leave little room for alternative compliance paths.","Implied costs and downtime for owners/operators due to part removal, inspection, modification, labour and possible parts replacement (Requirement)."],"plain_english_summary":"Requires owners/operators of specified Pacific Aerospace 750XL aircraft (particular serial numbers, excluding those with modification PAC/XL/0285) to remove both ailerons and inspect and modify the aileron spar at the inboard hinge in accordance with Pacific Aerospace Service Bulletin PACSB/XL/027. Compliance is required within 150 flight hours or six months after 5 July 2007. The directive follows the New Zealand CAA's recommendation to prevent cracks developing adjacent to the inboard hinge."}},"importantCases":[],"_links":{"self":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment","history":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment/history","analysis":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment/analysis","conflicts":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment/conflicts","importantCases":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment/important-cases","documents":"/api/acts/ad-750xl-13-aileron-inboard-hinge-attachment/documents"}}