{"id":"F2008L01939","name":"AD/FU24/66 - Aileron Control Cables","slug":"ad-fu24-66-aileron-control-cables","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74173,"registerId":"commonwealth-F2008L01939-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Airparts (NZ) Ltd. FU 24 Series Aeroplan","sectionType":"division","heading":"Airparts (NZ) Ltd. FU 24 Series Aeroplanes","content":"### Airparts (NZ) Ltd. FU 24 Series Aeroplanes\n\n| AD/FU24/66 | Aileron Control Cables | 7/2008 |\n| ---------- | ---------------------- | ------ |\n\n| Applicability: | All Model FU24 aircraft.                                                                                                                                                                                                                                                                                                                                       |\n| -------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | 1. Remove aileron balance cables P/N 242671, 242672 and both LH and RH aileron cables P/Ns 242597, in accordance with Maintenance Manual Chapter 27Section 2, vii.2. Inspect cables using the acceptance criteria of FAA AC 43-13-lB Chapter 7 Section 8.3. Replace unserviceable cables.Note: New Zealand CAA AD DCA/FU24/174 dated 30 September 2004 refers. |\n| Compliance:    | For Requirements 1 and 2 - Within 150 flight hours after the effective date of this AD unless previously accomplished.For Requirement 3 - Before further flight after the effective date of this AD.                                                                                                                                                           |\n|                | This Airworthiness Directive becomes effective on 3 July 2008.                                                                                                                                                                                                                                                                                                 |\n| Background:    | The intent of this AD is to detect fraying of the aileron control cable where it passes through the wing rib fairleads.                                                                                                                                                                                                                                        |\n\n![](image.001.png)  \nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n22 May 2008","sortOrder":0},{"sectionNumber":"AD/FU24/66","sectionType":"part","heading":"AD/FU24/66","content":"## AD/FU24/66","sortOrder":1},{"sectionNumber":"Aileron Control Cables","sectionType":"part","heading":"Aileron Control Cables","content":"## Aileron Control Cables","sortOrder":2},{"sectionNumber":"7/2008","sectionType":"part","heading":"7/2008","content":"## 7/2008","sortOrder":3}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD states its intent is to detect fraying where aileron cables pass through wing rib fairleads (Background) and the actions required—remove specified cables, inspect to FAA AC acceptance criteria, and replace unserviceable cables—directly implement that intent (Requirement). There is no expansion beyond that stated safety purpose in the text."},"complexity_factors":["Narrow applicability but precise part-numbered work for specific components (Applicability; Requirement).","Requires removal, inspection using an external standard, and replacement if unserviceable — technical maintenance procedures referenced (Maintenance Manual Chapter 27 Section 2; FAA AC 43-13-1B Chapter 7 Section 8.3) (Requirement).","Multiple distinct compliance deadlines (150 flight hours for some items; before further flight for others) creating operational scheduling effects (Compliance).","Cross-reference to earlier New Zealand CAA AD for context and traceability (Requirement note).","Low regulatory discretion: prescriptive tasks and timeframes reduce administrative ambiguity (Requirement; Compliance)."],"plain_english_summary":"This Airworthiness Directive applies to all Model FU24 aircraft and requires removal, inspection and replacement of specified aileron balance and aileron control cables to detect fraying where they pass through wing rib fairleads (Requirement; Background). Owners and operators must complete the mandated inspections and any replacements within the AD’s time limits (usually within 150 flight hours or before further flight for some items) and will pay for the maintenance; CASA issued the directive."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of ensuring aileron cable integrity."},"complexity_factors":["Very short document (under 300 words)","Only 4 specific part numbers referenced (242671, 242672, 242597)","Single, straightforward maintenance procedure with clear timeframes","No defined terms section or interpretation provisions","No cross-references to other legislation (only references maintenance manual and FAA guidance document)","Simple conditional structure: inspect by X hours, replace if unserviceable"],"plain_english_summary":"This AD requires owners/operators of Airparts (NZ) FU-24 aircraft to inspect and, if necessary, replace aileron control cables because they can fray where they pass through wing guides and may fail, risking loss of roll control. Inspections and removals must be completed within 150 flight hours, with failed cables replaced before further flight. The directive took effect 3 July 2008."},"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-fu24-66-aileron-control-cables","history":"/api/acts/ad-fu24-66-aileron-control-cables/history","analysis":"/api/acts/ad-fu24-66-aileron-control-cables/analysis","conflicts":"/api/acts/ad-fu24-66-aileron-control-cables/conflicts","importantCases":"/api/acts/ad-fu24-66-aileron-control-cables/important-cases","documents":"/api/acts/ad-fu24-66-aileron-control-cables/documents"}}