{"id":"F2009L00954","name":"AD/PA-42/8 - Engine Inlet Fuel Filter - Modification - CANCELLED","slug":"ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":78461,"registerId":"commonwealth-F2009L00954-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-42 (Cheyenne III) Series Aeropl","sectionType":"division","heading":"Piper PA-42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-42/8 | Engine Inlet Fuel Filter - Modification | 4/2009 |\n| ---------- | --------------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                   |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 9 April 2009.                                                                                                                                                                        |\n| Background:  | This unique Australian AD specified modification of engine inlet fuel filter assemblies in accordance with Piper SB No. 785 within 25 hours time in service after August 1984. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n19 February 2009","sortOrder":0},{"sectionNumber":"AD/PA-42/8","sectionType":"part","heading":"AD/PA-42/8","content":"## AD/PA-42/8","sortOrder":1},{"sectionNumber":"Engine Inlet Fuel Filter - Modification","sectionType":"part","heading":"Engine Inlet Fuel Filter - Modification","content":"## Engine Inlet Fuel Filter - Modification","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":1458},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument explicitly cancels the previous Airworthiness Directive AD/PA-42/8. The scope remains precisely limited to the Piper PA-42 aircraft series and specifically terminates the fuel filter modification requirement without expanding into new regulatory areas."},"complexity_factors":["Single operative provision (cancellation of previous directive)","No defined terms or interpretation section","No conditional logic, exceptions, or procedural steps","Cross-reference only to the superseded directive itself","Extremely brief (under 100 words of substantive text)"],"plain_english_summary":"This directive **cancels a previous safety requirement** for specific aircraft.\n\n**What it does:**\n- Removes a mandatory modification requirement for Piper PA-42 (Cheyenne III) aeroplanes\n- The old rule required owners to modify engine inlet fuel filters within 25 hours of flying time after August 1984\n- As of 9 April 2009, this modification is no longer legally required\n\n**Who it affects:**\n- Owners and operators of Piper PA-42 Cheyenne III aircraft\n- Maintenance organisations servicing these planes\n\n**Why it matters:**\n- Saves aircraft owners from having to perform a specific fuel filter modification that is now deemed unnecessary\n- Reduces compliance costs and maintenance burdens while maintaining safety standards"}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled","history":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled/history","analysis":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-42-8-engine-inlet-fuel-filter-modification-cancelled/documents"}}