{"id":"F2008L02629","name":"AD/PA-31/112 - Crossover Fuel Line - CANCELLED","slug":"ad-pa-31-112-crossover-fuel-line-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":74657,"registerId":"commonwealth-F2008L02629-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-31 Series Aeroplanes","sectionType":"division","heading":"Piper PA-31 Series Aeroplanes","content":"### Piper PA-31 Series Aeroplanes\n\n| AD/PA-31/112 | Crossover Fuel Line | 8/2008 |\n| ------------ | ------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                              |\n| ------------ | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 31 July 2008.                                                                                                                                                                                                   |\n| Background:  | This unique Australian AD required once-only inspection of the crossover fuel line in accordance with Piper SB No. 825. The AD required modification within 25 hours TIS after May 1986. All affected aircraft have now been inspected. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n13 June 2008","sortOrder":0},{"sectionNumber":"AD/PA-31/112","sectionType":"part","heading":"AD/PA-31/112","content":"## AD/PA-31/112","sortOrder":1},{"sectionNumber":"Crossover Fuel Line","sectionType":"part","heading":"Crossover Fuel Line","content":"## Crossover Fuel Line","sortOrder":2},{"sectionNumber":"8/2008","sectionType":"part","heading":"8/2008","content":"## 8/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2068},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument serves its specific intended purpose of formally terminating the earlier Airworthiness Directive. The scope is appropriately limited to cancelling the inspection requirement for Piper PA-31 aircraft now that the safety objective has been achieved fleet-wide."},"complexity_factors":["Single operative provision (cancellation)","No defined terms or interpretation section","No legislative cross-references","No conditional logic or exceptions"],"plain_english_summary":"**What this document does:** This officially cancels a previous aviation safety rule (Airworthiness Directive AD/PA-31/112) that required owners of Piper PA-31 aircraft to inspect and modify a specific fuel pipe.\n\n**Background:** The original rule required a one-time inspection of the \"crossover fuel line\" (a fuel pipe connecting different parts of the aircraft) according to manufacturer guidelines (Piper Service Bulletin 825), followed by a mandatory modification within 25 hours of flight time after May 1986.\n\n**Why it matters:** Because all affected aircraft have now been inspected and modified, the safety requirement is no longer necessary. This cancellation removes the compliance obligation for aircraft operators, taking effect on 31 July 2008."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled","history":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled/history","analysis":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled/analysis","conflicts":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled/conflicts","importantCases":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled/important-cases","documents":"/api/acts/ad-pa-31-112-crossover-fuel-line-cancelled/documents"}}