{"id":"F2008L04115","name":"AD/PA-25/13 - Fuel Line - Modification - CANCELLED","slug":"ad-pa-25-13-fuel-line-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":76028,"registerId":"commonwealth-F2008L04115-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-25 (Pawnee) Series Aeroplanes","sectionType":"division","heading":"Piper PA-25 (Pawnee) Series Aeroplanes","content":"### Piper PA-25 (Pawnee) Series Aeroplanes\n\n| AD/PA-25/13 | Fuel Line - Modification | 12/2008 |\n| ----------- | ------------------------ | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                           |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |\n|              | This AD is cancelled on 20 November 2008.                                                                                                                                                                                                                                            |\n| Background:  | This unique Australian AD specified replacement of the flexible fuel line between filter and carburettor with a fire-resistant coupled hose assembly. The AD was not based on a Piper service document. Compliance was required before September 1971. The AD is no longer required. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n22 September 2008","sortOrder":0},{"sectionNumber":"AD/PA-25/13","sectionType":"part","heading":"AD/PA-25/13","content":"## AD/PA-25/13","sortOrder":1},{"sectionNumber":"Fuel Line - Modification","sectionType":"part","heading":"Fuel Line - Modification","content":"## Fuel Line - Modification","sortOrder":2},{"sectionNumber":"12/2008","sectionType":"part","heading":"12/2008","content":"## 12/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2598},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the application of Airworthiness Directive AD/PA-25/13 entirely. It does not expand the scope but rather eliminates the previous fuel line modification requirement, returning affected aircraft to standard certification rules without the specific Australian-only mandate."},"complexity_factors":["Single operative provision (cancellation of previous instrument)","No defined terms or interpretation sections","No conditional logic, exceptions, or procedural steps","Historical background provided for context only"],"plain_english_summary":"This document **cancels** an old aviation safety rule (called an Airworthiness Directive) that applied to specific agricultural aircraft.\n\n**What was the old rule?**\nThe previous directive required owners of Piper PA-25 Pawnee aeroplanes to replace the flexible fuel line between the fuel filter and carburettor with a fire-resistant hose assembly. This was a unique Australian requirement (not based on the manufacturer's guidance) that had to be completed before September 1971.\n\n**What does this document do?**\nIt formally cancels that requirement effective **20 November 2008**, because the compliance deadline passed over 37 years ago and the safety rule is now obsolete.\n\n**Who is affected?**\nOwners and operators of Piper PA-25 Pawnee series aircraft. In practice, this cancellation simply removes a long-defunct requirement that everyone already complied with decades ago."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled","history":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled/history","analysis":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-25-13-fuel-line-modification-cancelled/documents"}}