{"id":"F2009L02811","name":"AD/CESSNA 185/1 Amdt 3 - Plastic Control Wheel","slug":"ad-cessna-185-1-amdt-3-plastic-control-wheel","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80051,"registerId":"commonwealth-F2009L02811-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 185 Series Aeroplanes","sectionType":"division","heading":"Cessna 185 Series Aeroplanes","content":"### Cessna 185 Series Aeroplanes\n\n| AD/CESSNA 185/1 Amdt 3 | Plastic Control Wheel | 8/2009 |\n| ---------------------- | --------------------- | ------ |\n\n| Applicability: | All model fitted with plastic control wheels.                                                                                                                                                                                                                                                                                                                                                                                               |\n| -------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n| Requirement:   | Action in accordance with Cessna Service Letter (SL) No. 64-8.                                                                                                                                                                                                                                                                                                                                                                              |\n| Compliance:    | At intervals not exceeding 500 hours TIS following compliance with previous issue of this AD in accordance with Cessna Service Letter (SL) No. 64-8.                                                                                                                                                                                                                                                                                        |\n|                | This Amendment becomes effective on 30 July 2009.                                                                                                                                                                                                                                                                                                                                                                                           |\n| Background:    | This AD requires an inspection following reports of in service cracking and failures of plastic control wheels. The requirement documents for the inspection were Cessna Service Letter (SL) No. 62-44 and 64-8.As an inspection carried out in accordance with SL 64-8 supersedes the inspection required by SL 62-44, this amendment deletes SL 62-44. No change has been made to the compliance period for requirement document SL 64-8. |\n\n![](image.001.png)  \nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n17 June 2009","sortOrder":0},{"sectionNumber":"AD/CESSNA 185/1 Amdt 3","sectionType":"part","heading":"AD/CESSNA 185/1 Amdt 3","content":"## AD/CESSNA 185/1 Amdt 3","sortOrder":1},{"sectionNumber":"Plastic Control Wheel","sectionType":"part","heading":"Plastic Control Wheel","content":"## Plastic Control Wheel","sortOrder":2},{"sectionNumber":"8/2009","sectionType":"part","heading":"8/2009","content":"## 8/2009","sortOrder":3}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment makes a minor administrative update (removing superseded reference SL 62-44) without expanding the scope. The directive remains focused solely on inspection of plastic control wheels in Cessna 185 aircraft, exactly as originally intended."},"complexity_factors":["Very short document (approximately 200 words of substantive content)","Only 2 defined technical terms used (TIS = Time In Service, SL = Service Letter)","Single requirement with straightforward compliance interval (500 hours)","No cross-references to other legislation or regulations","No conditional logic or exceptions — applies to all affected aircraft uniformly","Simple amendment structure (removing one document reference, keeping everything else identical)"],"plain_english_summary":"This AD requires operators of Cessna 185 aeroplanes fitted with plastic control wheels to inspect those wheels for cracking or damage per Cessna Service Letter No. 64‑8 at 500 flight‑hour intervals. It responds to in‑service failures that can compromise steering and therefore safety. Amendment 3 simply replaces an older service letter reference with SL 64‑8; the inspection requirement and 500‑hour schedule remain, effective 30 July 2009."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The amendment removes the now‑superseded SL 62‑44 and confirms SL 64‑8 as the requirement document; it does not change the applicability, compliance interval (500 hours TIS), or expand/restrict the set of affected aircraft."},"complexity_factors":["References an external service document (Cessna SL No. 64‑8) for inspection procedures; the AD does not reproduce the technical steps.","Requires recurring inspections at defined intervals (every 500 hours TIS) creating an ongoing compliance obligation.","Applicability is narrow (only Cessna 185 aircraft fitted with plastic control wheels), limiting affected population but concentrating costs on those operators.","Amendment deletes a superseded service letter (SL 62‑44), an administrative change that requires checking historical compliance records.","Technical inspection and any replacements likely require maintenance personnel and parts, imposing practical operational and cost burdens on owners/operators.","Enforcement and legal effect rest with CASA (delegate executed), so compliance is mandatory rather than advisory."],"plain_english_summary":"This airworthiness directive requires owners/operators of Cessna 185 aeroplanes fitted with plastic control wheels to inspect them per Cessna Service Letter No. 64‑8 and to re‑inspect at intervals not exceeding 500 hours time‑in‑service after initial compliance (Requirement; Compliance). It responds to reported in‑service cracking and failures; owners pay inspection and repair costs and must remove defective wheels from service under CASA's instruction (Applicability; Background)."},"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-cessna-185-1-amdt-3-plastic-control-wheel","history":"/api/acts/ad-cessna-185-1-amdt-3-plastic-control-wheel/history","analysis":"/api/acts/ad-cessna-185-1-amdt-3-plastic-control-wheel/analysis","conflicts":"/api/acts/ad-cessna-185-1-amdt-3-plastic-control-wheel/conflicts","importantCases":"/api/acts/ad-cessna-185-1-amdt-3-plastic-control-wheel/important-cases","documents":"/api/acts/ad-cessna-185-1-amdt-3-plastic-control-wheel/documents"}}