{"id":"F2007L03965","name":"AD/GENERAL/81 Amdt 2 - Ethylene Diamine (EDA) Decontamination - Complex Aircraft - CANCELLED","slug":"ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":70666,"registerId":"commonwealth-F2007L03965-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Aircraft - General","sectionType":"division","heading":"Aircraft - General","content":"### Aircraft - General\n\n| AD/GENERAL/81 Amdt 2 | Ethylene Diamine (EDA)Decontamination - Complex Aircraft | 11/2007 |\n| -------------------- | -------------------------------------------------------- | ------- |\n\n| Requirement: | CANCELLED.                                                                                                                                                                            |\n| ------------ | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |\n|              | This AD is cancelled on 25 October 2007.                                                                                                                                              |\n| Background:  | This AD was issued in 2000 to address a safety concern as a result of contaminated fuel. The fuel contamination issue has now been addressed and the safety concern no longer exists. |\n\n![](image.001.png)\n\nCharles Lenarcic  \nDelegate of the Civil Aviation Safety Authority\n\n7 September 2007","sortOrder":0},{"sectionNumber":"AD/GENERAL/81 Amdt 2","sectionType":"part","heading":"AD/GENERAL/81 Amdt 2","content":"## AD/GENERAL/81 Amdt 2","sortOrder":1},{"sectionNumber":"Ethylene Diamine (EDA)Decontamination - ","sectionType":"part","heading":"Ethylene Diamine (EDA)Decontamination - Complex Aircraft","content":"## Ethylene Diamine (EDA)  \nDecontamination - Complex Aircraft","sortOrder":2},{"sectionNumber":"11/2007","sectionType":"part","heading":"11/2007","content":"## 11/2007","sortOrder":3}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1442},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment solely cancels the previous airworthiness directive without expanding its scope, introducing new requirements, or altering existing obligations beyond the repeal."},"complexity_factors":["Single operative provision (cancellation only)","No defined terms or interpretation section","No conditional logic or exceptions","Administrative instrument with no ongoing regulatory requirements"],"plain_english_summary":"**What this document does**\n\nThis instrument officially cancels (repeals) a previous safety rule — Airworthiness Directive No. 81 — that required aircraft operators to decontaminate fuel systems using Ethylene Diamine (EDA).\n\n**Who it affects**\n\nOperators of complex aircraft who were previously required to comply with the EDA decontamination procedures.\n\n**Why it matters**\n\nThe original directive was issued in 2000 to address safety risks from contaminated fuel. Because the fuel contamination issue has since been resolved, the decontamination requirement is no longer necessary. This cancellation removes the compliance burden for operators, effective **25 October 2007**."}},"importantCases":[],"_links":{"self":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled","history":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled/history","analysis":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled/analysis","conflicts":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled/conflicts","importantCases":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled/important-cases","documents":"/api/acts/ad-general-81-amdt-2-ethylene-diamine-eda-decontamination-complex-aircraft-cancelled/documents"}}