{"id":"F2006B01848","name":"AD/A320/1 - Artus Transformer Rectifiers","slug":"ad-a320-1-artus-transformer-rectifiers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41044,"registerId":"commonwealth-F2006B01848-current","compilationNumber":null,"startDate":"2026-04-01","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/A320/1 - Artus Transformer Rectifiers","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nAirbus Industrie A319, A320 and A321 Series Aeroplanes\n\nAD/A320/1 Artus Transformer Rectifiers 6/89 DM\n\nApplicability: All A320-111 and A320-211 aircraft.\n\nRequirement: 1. Install in positions 1 and 2, transformer rectifier units Artus P/N TRO3B4200 Amendment J.\n\n    2. Replace the transformer rectifier units Artus P/N TRO3B4200 amendment J installed in positions 1 and 2, with transformer rectifier units Artus P/N Y005-2 in accordance with Airbus Industries SB A320-24-1024.\n\n    3. Replace the transformer rectifier unit in the essential position which may have been used before in positions 1 or 2 with transformer rectifier Artus P/N TRO3B4200 amendment J equipped with new diode bridges.\n\n    4. Replace the transformer rectifier unit in the essential position with transformer rectifier unit Artus P/N Y005-2 in accordance with Airbus Industries SB A320-24- 1028.\n\nNote: French AD 89-023-001 (B) R1 refers.\n\nCompliance: Requirement 1. Prior to 1 May 1989.\n\n    2. Prior to 600 hours total TIS or 31 July 1989.\n\n    3. Prior to 1 June 1989.\n\n    4. Prior to 31 December 1989.\n\nBackground: Failure of the transformer rectifier units may lead to the loss of several flight control computers essential for flight safety.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1314},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This airworthiness directive maintains its original narrow technical scope regarding the replacement of Artus transformer rectifier units in specific Airbus A320 variants. It has not expanded beyond its initial safety purpose."},"complexity_factors":["Multiple specific manufacturer part numbers requiring precise identification (Artus P/N TRO3B4200 Amendment J vs Y005-2)","Mixed compliance triggers combining calendar dates and operational metrics ('600 hours total TIS' - Time In Service)","Cross-references to external technical documents (Airbus Service Bulletins A320-24-1024 and A320-24-1028, and French AD 89-023-001)","Technical aviation terminology ('transformer rectifiers', 'essential position', 'diode bridges') requiring specialized knowledge"],"plain_english_summary":"The Civil Aviation Safety Authority issued a mandatory Airworthiness Directive forcing operators of Airbus A320-111 and A320-211 aircraft to replace specific transformer rectifier units with updated models. The change addresses a failure mode that could lead to loss of multiple flight control computers, so operators had to comply under strict 1989 deadlines to restore and maintain airworthiness."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a320-1-artus-transformer-rectifiers","history":"/api/acts/ad-a320-1-artus-transformer-rectifiers/history","analysis":"/api/acts/ad-a320-1-artus-transformer-rectifiers/analysis","conflicts":"/api/acts/ad-a320-1-artus-transformer-rectifiers/conflicts","importantCases":"/api/acts/ad-a320-1-artus-transformer-rectifiers/important-cases","documents":"/api/acts/ad-a320-1-artus-transformer-rectifiers/documents"}}