{"id":"F2008L03739","name":"AD/CESSNA 207/11 - Rudder Trim Chain - CANCELLED","slug":"ad-cessna-207-11-rudder-trim-chain-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":75485,"registerId":"commonwealth-F2008L03739-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Cessna 207 Series Aeroplanes","sectionType":"division","heading":"Cessna 207 Series Aeroplanes","content":"### Cessna 207 Series Aeroplanes\n\n| AD/CESSNA 207/11 | Rudder Trim Chain | 11/2008 |\n| ---------------- | ----------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                                            |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 23 October 2008.                                                                                                                                                                                                                                                                                              |\n| Background:  | This unique Australian AD, issued in 1976, required a one off inspection of the rudder trim chain in accordance with Cessna SL SE76-3 to ensure security of the master link. The AD compliance was within 100 hours time in service after31 May 1976. As all aircraft would have been inspected by now, the AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n25 August 2008","sortOrder":0},{"sectionNumber":"AD/CESSNA 207/11","sectionType":"part","heading":"AD/CESSNA 207/11","content":"## AD/CESSNA 207/11","sortOrder":1},{"sectionNumber":"Rudder Trim Chain","sectionType":"part","heading":"Rudder Trim Chain","content":"## Rudder Trim Chain","sortOrder":2},{"sectionNumber":"11/2008","sectionType":"part","heading":"11/2008","content":"## 11/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2172},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument reduces regulatory scope by entirely cancelling the previous airworthiness directive. It removes a maintenance inspection requirement rather than expanding coverage or creating new obligations."},"complexity_factors":["Single operative provision (cancellation of previous instrument)","No defined terms or interpretation section","No cross-references to other legislation beyond citation of the cancelled AD","No conditional logic, exceptions, or procedural steps","Very short length (approximately 100 words of substantive content)"],"plain_english_summary":"This instrument **cancels an outdated aircraft safety rule** that applied to Cessna 207 aeroplanes.\n\n**What the old rule required:**\nThe original directive (from 1976) mandated a one-time inspection of the **rudder trim chain** — the mechanism that helps keep the plane flying straight — specifically to check that a \"master link\" connector was secure and wouldn't fail during flight.\n\n**Why it is being cancelled:**\nBecause this was a single inspection with a compliance deadline based on flight hours accumulated shortly after 1976, every affected aircraft completed it decades ago. The rule is now obsolete, so the Civil Aviation Safety Authority is formally removing it from the regulations. This relieves aircraft operators of any lingering paperwork obligation for this specific check."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled","history":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled/history","analysis":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled/analysis","conflicts":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled/conflicts","importantCases":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled/important-cases","documents":"/api/acts/ad-cessna-207-11-rudder-trim-chain-cancelled/documents"}}