{"id":"F2009L03092","name":"AD/L.40/5 - Fuel System - Modification - CANCELLED","slug":"ad-l-40-5-fuel-system-modification-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":80759,"registerId":"commonwealth-F2009L03092-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Meta Sokol L.40 Series Aeroplanes","sectionType":"division","heading":"Meta Sokol L.40 Series Aeroplanes","content":"### Meta Sokol L.40 Series Aeroplanes\n\n| AD/L.40/5 | Fuel System - Modification | 9/2009 |\n| --------- | -------------------------- | ------ |\n\n| Requirement: | CANCELLED.                                                                                                                                                                                                                                                                                                                         |\n| ------------ | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 27 August 2009.                                                                                                                                                                                                                                                                                            |\n| Background:  | This unique Australian AD applied to L.40 aircraft with wing-tip auxiliary fuel tanks. The AD specified modification of the main tank vent system to ensure interconnection of air spaces. Compliance was required before September 1971. The AD was not based on a manufacturer’s service document. The AD is no longer required. |\n\n![](image.001.png)\n\nJames Coyne  \nDelegate of the Civil Aviation Safety Authority\n\n30 June 2009","sortOrder":0},{"sectionNumber":"AD/L.40/5","sectionType":"part","heading":"AD/L.40/5","content":"## AD/L.40/5","sortOrder":1},{"sectionNumber":"Fuel System - Modification","sectionType":"part","heading":"Fuel System - Modification","content":"## Fuel System - Modification","sortOrder":2},{"sectionNumber":"9/2009","sectionType":"part","heading":"9/2009","content":"## 9/2009","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2268},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This instrument terminates the previous Airworthiness Directive entirely rather than expanding its original scope regarding Meta Sokol L.40 fuel system modifications."},"complexity_factors":["Single operative provision (cancellation)","No conditional, transitional, or exception provisions","No defined terms or interpretative section","Minimal cross-referencing (only refers to the specific AD being cancelled)"],"plain_english_summary":"This document cancels a previous aviation safety rule for **Meta Sokol L.40 aircraft** (a type of Czech-made plane) that were fitted with extra fuel tanks on their wingtips.\n\n**What it used to require:**\nOwners had to modify the main fuel tank venting system to ensure air spaces between tanks were interconnected. This work originally had to be completed by September 1971.\n\n**What it does now:**\nIt formally cancels that modification requirement. Aircraft owners and operators **no longer need to comply** with this specific fuel system change, as the safety authority has determined the rule is no longer necessary."}},"importantCases":[],"_links":{"self":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled","history":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled/history","analysis":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled/analysis","conflicts":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled/conflicts","importantCases":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled/important-cases","documents":"/api/acts/ad-l-40-5-fuel-system-modification-cancelled/documents"}}