{"id":"F2008L01465","name":"AD/PA-11/4 - Wing Fuel Tank Cap - Modification - CANCELLED","slug":"ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":119779,"registerId":"commonwealth-F2008L01465-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Piper PA-11 (Cub) & J3 Series Aeroplanes","sectionType":"division","heading":"Piper PA-11 (Cub) & J3 Series Aeroplanes","content":"### Piper PA-11 (Cub) & J3 Series Aeroplanes\n\n| AD/PA-11/4 | Wing Fuel Tank Cap - Modification | 6/2008 |\n| ---------- | --------------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                         |\n| ------------ | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 5 June 2008.                                                                                                                                                                                                               |\n| Background:  | This Directive specified once-only modification of the wing fuel tank cap in accordance with Piper SB No. 351. This Directive was based on USA Directive78-10-03. These documents were published in 1978 so the unsafe condition no longer exists. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n23 April 2008","sortOrder":0},{"sectionNumber":"AD/PA-11/4","sectionType":"part","heading":"AD/PA-11/4","content":"## AD/PA-11/4","sortOrder":1},{"sectionNumber":"Wing Fuel Tank Cap - Modification","sectionType":"part","heading":"Wing Fuel Tank Cap - Modification","content":"## Wing Fuel Tank Cap - Modification","sortOrder":2},{"sectionNumber":"6/2008","sectionType":"part","heading":"6/2008","content":"## 6/2008","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1605},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the legislation entirely rather than expanding it. The original directive mandated a specific airworthiness modification; this cancellation simply removes that mandate because the underlying safety risk has dissipated over the 30-year period since the original issue."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretations section","No cross-references to other legislation","No conditional logic, exceptions, or procedural steps","Extremely brief - essentially one sentence of legal effect"],"plain_english_summary":"**What this does:** This document officially cancels a previous safety rule (Airworthiness Directive) that required owners of certain Piper aircraft to modify their wing fuel tank caps.\n\n**Who it affects:** Owners and operators of **Piper PA-11 (Cub) and J3 series aeroplanes**.\n\n**Why it matters:** The original rule from 1978 required a one-time modification to fix a safety issue with fuel tank caps. Because those aircraft are now decades old, the unsafe condition no longer exists in the fleet. The Civil Aviation Safety Authority has cancelled the requirement, so owners no longer need to perform this modification or worry about complying with the old rule."}},"importantCases":[],"_links":{"self":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled","history":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled/history","analysis":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled/analysis","conflicts":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled/conflicts","importantCases":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled/important-cases","documents":"/api/acts/ad-pa-11-4-wing-fuel-tank-cap-modification-cancelled/documents"}}