{"id":"F2006B02005","name":"AD/A330/28 - Flight Control Primary Computer","slug":"ad-a330-28-flight-control-primary-computer","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":41227,"registerId":"commonwealth-F2006B02005-current","compilationNumber":null,"startDate":"2026-04-01","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# AIRWORTHINESS DIRECTIVE\n\n![](image.001.png)  \n\nFor the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CASR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.\n\n![](image.001.png)  \n\nAirbus Industrie A330 Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/A330/28 Flight Control Primary Comput","sectionType":"part","heading":"AD/A330/28 Flight Control Primary Computer 3/2004","content":"# AD/A330/28 Flight Control Primary Computer 3/2004\n\nDM\n\nApplicability: All A330 series aeroplanes, all serial numbers, except for aeroplanes which have been modified as follows:\n\nAirbus modification 49965 during production or Airbus Industrie Service Bulletin (SB) A330-27-3098 whilst in service (installation of flight control primary computer (FCPC) software standard P6&M14 2K1), or\n\nAirbus modification 50058 during production or SB A330-27-3097 whilst in service (installation of FCPC software standard M14 2K0), or\n\nAirbus modification 51341 during production or SB A330-27-3111 whilst in service (installation of FCPC software standard P6A&M14A 2K1).\n\nRequirement: If not previously accomplished, amend the aircraft minimum equipment list (MEL) in accordance with the following DGAC approved temporary revisions related to the manufacturer MMEL:\n\nSECTION 01: TR No. 01-27/03Z issue 2, and SECTION 02: TR No. 02-27/01Z issue 2.\n\nNote 1: The Requirement 1 amendment may be removed from the MEL when new FCPC software standards, as specified in the Applicability Statement, are installed.\n\nNote 2: DGAC AD F-2001-154 R2 refers.\n\nCompliance: Within seven days after the effective date of this Directive.\n\nThis Airworthiness Directive becomes effective on 11 February 2004.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The Directive preserves a targeted, temporary scope: it obliges operators of non‑modified A330s to amend their MELs until specified FCPC software standards are installed. It does not expand obligations beyond MEL amendment and the short compliance timeframe. Evidence: Applicability lists excluded modified aeroplanes; Requirement prescribes MEL amendment; Note 1 allows removal when the stated software is installed; Compliance sets the seven‑day deadline."},"complexity_factors":["Narrow technical scope but requires precise tracking of FCPC software standards and specific SBs/modifications to determine applicability (Applicability).","Requirement is procedural — amend MEL to adopt DGAC temporary MMEL revisions — creating administrative and operational work for operators rather than immediate hardware change (Requirement).","Very short compliance deadline: amendment within seven days imposes a tight implementation window for airlines and maintenance organisations (Compliance).","Exceptions for aeroplanes already modified demand verification of modification/SB status and maintenance records (Applicability).","Dependence on external documents and authorities (DGAC MMEL revisions; DGAC AD F-2001-154 R2) creates cross-reference and interpretive burden for operators and regulators (Requirement; Note 2).","Regulatory enforcement rests with the CASA delegate under CASR 1998 subregulation 39.1(1), introducing delegated administrative discretion in issuing the AD (background)."],"plain_english_summary":"This Airworthiness Directive requires A330 operators to amend their aircraft Minimum Equipment List (MEL) to include DGAC‑approved temporary MMEL revisions that restrict dispatch related to the Flight Control Primary Computer until certain FCPC software standards are installed. It applies to all A330s except those already modified to the listed FCPC software standards (Applicability; Requirement). Operators must make the MEL change within seven days, creating a short-term administrative and operational obligation while software upgrades are fitted (Compliance; Note 1)."},"flash_summary_failed":{"failed":true,"reason":"A positive credit balance is required for all requests, including BYOK, so fallback providers remain available. Add credits at https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Fmodal%3Dtop-up to continue.","source":"analysis-cron"},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"This is a standard, narrow aviation safety directive focused on a specific technical issue with A330 flight control computers. It maintains its original scope of addressing a defined unsafe condition through MEL amendments."},"complexity_factors":["Multiple nested exceptions in the Applicability section (three alternative modification paths, each with 'during production' or 'in service' variants)","Cross-reference to French aviation authority (DGAC) documentation (AD F-2001-154 R2)","Technical aviation terminology requiring specialized knowledge (MEL, MMEL, FCPC, SB, TR)","Conditional logic: requirement applies only 'if not previously accomplished'","Self-referential removal mechanism in Note 1 (MEL amendment can be removed when certain conditions met)"],"plain_english_summary":"This is a safety order (called an Airworthiness Directive or AD) issued by Australia's aviation safety regulator (CASA) for Airbus A330 aircraft. It requires airlines to update their Minimum Equipment Lists (MELs) — documents that specify what equipment can be broken while still allowing a plane to fly safely — within 7 days. The update adds temporary restrictions on the Flight Control Primary Computer (the main computer that manages the aircraft's flight controls). This action is needed because of a safety issue with certain software versions in that computer. Airlines can remove this restriction once they install updated software versions specified in the directive. The directive applies to all A330s unless they've already received specific software upgrades."}},"importantCases":[],"_links":{"self":"/api/acts/ad-a330-28-flight-control-primary-computer","history":"/api/acts/ad-a330-28-flight-control-primary-computer/history","analysis":"/api/acts/ad-a330-28-flight-control-primary-computer/analysis","conflicts":"/api/acts/ad-a330-28-flight-control-primary-computer/conflicts","importantCases":"/api/acts/ad-a330-28-flight-control-primary-computer/important-cases","documents":"/api/acts/ad-a330-28-flight-control-primary-computer/documents"}}