{"id":"F2009L00877","name":"AD/PA-42/10 - Stall/Flow Strip - CANCELLED","slug":"ad-pa-42-10-stall-flow-strip-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78148,"registerId":"commonwealth-F2009L00877-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-42 (Cheyenne III) Series Aeropl","sectionType":"division","heading":"Piper PA-42 (Cheyenne III) Series Aeroplanes","content":"### Piper PA-42 (Cheyenne III) Series Aeroplanes\n\n| AD/PA-42/10 | Stall/Flow Strip | 4/2009 |\n| ----------- | ---------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 9 April 2009.                                                                                                                                                                     |\n| Background:  | This unique Australian AD specified inspection of the position of stall/flow strips in accordance with Piper SB No. 807 within 100 hours time in service after August 1985. The AD is no longer required. |\n\n![](image.001.png)\n\nDavid Villiers  \nDelegate of the Civil Aviation Safety Authority\n\n25 February 2009","sortOrder":0},{"sectionNumber":"AD/PA-42/10","sectionType":"part","heading":"AD/PA-42/10","content":"## AD/PA-42/10","sortOrder":1},{"sectionNumber":"Stall/Flow Strip","sectionType":"part","heading":"Stall/Flow Strip","content":"## Stall/Flow Strip","sortOrder":2},{"sectionNumber":"4/2009","sectionType":"part","heading":"4/2009","content":"## 4/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1188},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The instrument performs exactly its stated purpose of cancelling Airworthiness Directive AD/PA-42/10. There is no expansion beyond the original intent or addition of new requirements."},"complexity_factors":["Single operative provision (cancellation of one previous directive)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislation","Extremely short - essentially one sentence of legal effect"],"plain_english_summary":"**What this does:** This document officially cancels a previous aviation safety rule (called an Airworthiness Directive or AD) that applied to Piper PA-42 Cheyenne III aircraft.\n\n**Who it affects:** Owners and operators of Piper PA-42 (Cheyenne III) series aeroplanes.\n\n**What changed:** The previous rule required these aircraft to have their **stall/flow strips** (small aerodynamic devices on the wings that help prevent dangerous stalls) inspected to ensure they were positioned correctly. This had to be done within 100 hours of flying time after August 1985.\n\n**Why it matters:** As of **9 April 2009**, this inspection is no longer legally required. The safety issue has been resolved or is no longer considered a risk, so aircraft owners can stop performing this specific check."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled","history":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled/history","analysis":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled/analysis","conflicts":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled/conflicts","importantCases":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled/important-cases","documents":"/api/acts/ad-pa-42-10-stall-flow-strip-cancelled/documents"}}