{"id":"F2007L03967","name":"AD/GENERAL/79 Amdt 1 - Testing for Ethylene Diamine (EDA) Contamination of Fuel Tanks - CANCELLED","slug":"ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":70671,"registerId":"commonwealth-F2007L03967-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Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"Aircraft - General","sectionType":"division","heading":"Aircraft - General","content":"###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/79 Amdt 1 | Testing for Ethylene Diamine (EDA) Contamination of Fuel Tanks | 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 unsafe condition 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/79 Amdt 1","sectionType":"part","heading":"AD/GENERAL/79 Amdt 1","content":"## AD/GENERAL/79 Amdt 1","sortOrder":1},{"sectionNumber":"Testing for Ethylene Diamine (EDA) Conta","sectionType":"part","heading":"Testing for Ethylene Diamine (EDA) Contamination of Fuel Tanks","content":"## Testing for Ethylene Diamine (EDA) Contamination of Fuel Tanks","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":1945},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This amendment serves only to cancel the original 2000 Airworthiness Directive. It does not expand the regulatory scope beyond its original purpose; rather, it terminates the requirement entirely because the underlying safety issue (fuel contamination) has been resolved."},"complexity_factors":["Single operative provision (cancellation of previous directive)","No defined terms or interpretation section","No conditional logic, exceptions, or cross-references to other legislative provisions","Approximately 30 words of substantive legal effect","Straightforward effective date with no transitional arrangements"],"plain_english_summary":"**What this document does**\n\nThis officially cancels a previous aircraft safety rule (Airworthiness Directive 79) that required testing of fuel tanks for a chemical called **Ethylene Diamine (EDA)**.\n\n**Who it affects**\n\nAircraft owners, operators, and maintenance organisations who were previously required to conduct EDA contamination testing.\n\n**Why it matters**\n\nThe original rule was introduced in 2000 after contaminated fuel created safety risks. By October 2007, authorities confirmed the contamination issue was resolved and the unsafe condition no longer existed. This cancellation removes the mandatory testing requirement, saving operators compliance costs while maintaining safety standards."}},"importantCases":[],"_links":{"self":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled","history":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled/history","analysis":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled/analysis","conflicts":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled/conflicts","importantCases":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled/important-cases","documents":"/api/acts/ad-general-79-amdt-1-testing-for-ethylene-diamine-eda-contamination-of-fuel-tanks-cancelled/documents"}}