{"id":"F2008L03360","name":"AD/PA-32/18 - Fuel Selector Valve - Modification - CANCELLED","slug":"ad-pa-32-18-fuel-selector-valve-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":120273,"registerId":"commonwealth-F2008L03360-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-32 (Cherokee Six) Series Aeropl","sectionType":"division","heading":"Piper PA-32 (Cherokee Six) Series Aeroplanes","content":"### Piper PA-32 (Cherokee Six) Series Aeroplanes\n\n| AD/PA-32/18 | Fuel Selector Valve - Modification | 10/2008 |\n| ----------- | ---------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                           |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 25 September 2008.                                                                                                                                                                                           |\n| Background:  | This unique Australian AD specified once-only modification of the fuel selector valve in accordance with Piper SB No. 311. Compliance was required within 100 hours time in service after August 1970. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n7 August 2008","sortOrder":0},{"sectionNumber":"AD/PA-32/18","sectionType":"part","heading":"AD/PA-32/18","content":"## AD/PA-32/18","sortOrder":1},{"sectionNumber":"Fuel Selector Valve - Modification","sectionType":"part","heading":"Fuel Selector Valve - Modification","content":"## Fuel Selector Valve - Modification","sortOrder":2},{"sectionNumber":"10/2008","sectionType":"part","heading":"10/2008","content":"## 10/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2227},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the legal effect of the original Airworthiness Directive rather than expanding its scope. The legislation has not grown beyond its original purpose; instead, it has been completely cancelled because the safety requirement is no longer necessary."},"complexity_factors":["Single operative provision (cancellation of previous requirement)","No defined terms or interpretation sections","No conditional logic or exceptions","Only historical reference to a technical standard (Piper SB No. 311), not cross-references to other legislation"],"plain_english_summary":"**What this is:** A formal cancellation of an old aircraft safety rule for specific Piper Cherokee Six planes.\n\n**Who it affects:** Owners and operators of **Piper PA-32 (Cherokee Six) series aeroplanes**.\n\n**What it used to require:** Back in 1970, the original rule (AD/PA-32/18) forced owners to modify the fuel selector valve according to the manufacturer's instructions (Piper Service Bulletin No. 311). This had to be done within 100 flight hours after August 1970.\n\n**What changed:** As of **25 September 2008**, this rule is officially dead. The Civil Aviation Safety Authority (CASA) has cancelled it because the modification is no longer considered necessary for safety.\n\n**Why it matters:** If you own one of these aircraft, you no longer need to worry about complying with this specific fuel valve modification requirement. Any obligations under this directive ended in 2008."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled","history":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled/history","analysis":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-32-18-fuel-selector-valve-modification-cancelled/documents"}}