{"id":"F2006B07819","name":"Airworthiness Directives 2004 - Revocation and Remaking - Cockpit Voice and Flight Data Recording Systems","slug":"airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":50705,"registerId":"commonwealth-F2006B07819-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Cockpit Voice and Flight Data Recording Systems","content":"Airworthiness Directives 2004\n\nI, DAVID ALAN VILLIERS, delegate of the Civil Aviation Safety\n\nAuthority, acting under subregulation 39.001 (1) of the Civil\n\nAviation Safety Regulations 1998:\n\n(a) revoke the Airworthiness Directives mentioned in\n\nSchedule 1; and\n\n(b) make, as separate instruments, each Airworthiness\n\nDirective mentioned in Schedule 1 and attached.\n\n![](image.001.png)\n\nDavid Villiers\n\nDelegate of the Civil Aviation Safety Authority\n\n20 December 2004\n\nNote: Each attached Airworthiness Directive is being re-made in exactly the\n\nsame form as appears in the latest published edition of the Directive.\n\n  \nSchedule 1 Revocation and Remaking of\n\nAirworthiness Directives\n\nCockpit Voice and Flight Data Recording Systems\n\nAD Name AD Number\n\nMaintenance of Cockpit Voice Recording Systems AD/REC/1\n\nFairchild Cockpit Voice Recorder - Inspection and Modification AD/REC/2\n\nSundstrand Cockpit Voice Recorders - Modification AD/REC/3\n\nFairchild Model F800 Digital Flight Data Recorders Central Processor Unit AD/REC/4","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The legislation maintains its original narrow scope. It is purely administrative — revoking and remaking four specific Airworthiness Directives without expanding their substantive content. The note explicitly states each directive is being re-made 'in exactly the same form' as previously published."},"complexity_factors":["Very short document (approximately 200 words)","Only 4 defined items in Schedule 1 (the four Airworthiness Directives)","Simple binary structure: revocation (a) and remaking (b)","No nested exceptions or conditional logic","No cross-references to other legislation beyond the enabling regulation (subregulation 39.001(1))","Straightforward administrative action with no substantive changes to the technical content"],"plain_english_summary":"This document is an official order from the Civil Aviation Safety Authority (CASA) that **revokes and reissues four specific safety rules** about cockpit voice recorders and flight data recorders in aircraft.\n\n**What it does:**\n- **Revokes** (cancels) four existing Airworthiness Directives — these are mandatory safety instructions that aircraft owners and operators must follow\n- **Re-makes** those same four directives as new, separate legal instruments\n\n**The four directives cover:**\n- **AD/REC/1**: Maintenance requirements for cockpit voice recording systems\n- **AD/REC/2**: Inspection and modification requirements for Fairchild brand cockpit voice recorders\n- **AD/REC/3**: Modification requirements for Sundstrand brand cockpit voice recorders  \n- **AD/REC/4**: Requirements for the central processor unit in Fairchild Model F800 digital flight data recorders\n\n**Who it affects:**\n- Aircraft operators and owners who use these specific recording systems\n- Maintenance engineers and organisations servicing these systems\n- Manufacturers of the affected equipment (Fairchild and Sundstrand)\n\n**Why it matters:**\nCockpit voice recorders and flight data recorders are the \"black boxes\" that record what happens during flights. They're crucial for investigating accidents and improving aviation safety. These directives ensure this equipment is properly maintained and modified when needed. The re-making process is a routine administrative action to keep these safety rules current and legally valid under the Civil Aviation Safety Regulations 1998."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope of the listed Airworthiness Directives. It expressly revokes those ADs and re-makes them “in exactly the same form as appears in the latest published edition of the Directive” (see paras (a)–(b) and Note), so the legal obligations set out in the AD texts remain unchanged by this instrument."},"complexity_factors":["Purely administrative action (revocation and re-issue) with no change to substantive AD text (see Note).","Relies on a specific delegated power: subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 (see opening lines).","Multiple separate ADs are involved (four listed in Schedule 1), requiring stakeholders to locate each re-made instrument (see Schedule 1).","Legal effect depends on the full text of the attached/re-made ADs (not reproduced here), so practical obligations require consulting those instruments (see Note).","No transitional or implementation details included, which creates a small administrative coordination requirement for affected parties (no such provisions in the instrument)."],"plain_english_summary":"What this instrument does, mechanically\n\n- This instrument revokes a set of existing Airworthiness Directives (ADs) listed in Schedule 1 and re-makes each of those ADs as a separate, standalone instrument (see main text, paras (a) and (b) and Schedule 1).\n- The delegate of the Civil Aviation Safety Authority (CASA), David Alan Villiers, signs the instrument under the power in subregulation 39.001(1) of the Civil Aviation Safety Regulations 1998 (see opening lines).\n- A note in the instrument states that each re-made AD is issued in exactly the same form as the latest published edition of that Directive (see Note).\n\nWho is directly involved or named\n\n- The decision is taken by a CASA delegate: David Alan Villiers acting under subregulation 39.001(1) (see opening lines).\n- The ADs listed in Schedule 1 identify the subject matters: cockpit voice recorders and a model of digital flight data recorder (see Schedule 1 entries: AD/REC/1 to AD/REC/4).\n\nWhat this practically means (behavioural and compliance consequences)\n\n- The instrument is an administrative action that replaces the listed ADs with separately issued instruments that match the currently published AD texts (see paras (a), (b) and Note). The substantive content of those ADs is not changed by this instrument because the note says they are re-made “in exactly the same form” as the latest published editions (see Note).\n- Because the text of the ADs is unchanged by this instrument, any obligations, technical requirements, inspection or modification directions, and the costs of complying with those ADs remain as they were in the existing published ADs; this instrument does not itself state who bears those costs or the monetary impact (see Note and Schedule 1).\n\nOfficial purpose-claim and an analytical check\n\n- The instrument’s explicit purpose is administrative: to revoke the listed ADs and re-issue them as separate instruments in the same form as the latest published editions (see paras (a), (b) and Note).\n- Testing that claim against practical consequences: because the re-made ADs are identical in text to the published versions, the instrument does not alter substantive legal duties or create new technical requirements in itself (see Note). Any change in compliance burden would therefore come only from the content of the re-made ADs (which are stated to be identical) or from separate administrative effects (for example, different instrument identifiers or filing locations), none of which are described in this instrument (see Schedule 1 and Note).\n\nCosts, incentives, discretion and implementation risk (what the instrument shows and what it does not)\n\n- Who pays: the instrument does not specify who pays for compliance. Given the instrument does not change AD wording, any costs remain those established by the ADs themselves, not by this revocation/remaking action (see Note).\n- Who decides: the action is exercised by a CASA delegate under an express regulatory power (subregulation 39.001(1)) and is recorded as done by that named delegate (see opening lines).\n- Bureaucratic discretion: this instrument uses an existing delegated power to reorganise the ADs; it does not on its face create new discretionary powers or alter the substantive obligations imposed by the ADs (see opening lines and Note).\n- Compliance burden and implementation risk: because the instrument reissues ADs in the same form, the likely risk is administrative (for example, stakeholders needing to reference the newly issued standalone instruments). The instrument does not set out transitional arrangements, notification procedures, or changes to enforcement practices (no such provisions appear in the text), so affected parties must rely on locating the re-made instruments (see paras (a), (b) and Schedule 1).\n\nBottom line\n\n- This is an administrative revocation-and-recreation exercise: the listed Airworthiness Directives concerning cockpit voice and flight data recording systems are revoked and re-made as separate instruments in the same textual form as the latest published editions. The delegate of CASA exercises the power under subregulation 39.001(1) to do so (see opening lines, paras (a)–(b), Schedule 1 and Note). The instrument does not itself change substantive obligations, specify costs, or add new regulatory powers."}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-cockpit-voice-and-flight-data-recording-system/documents"}}