{"id":"F2006B07998","name":"Airworthiness Directives 2004 - Revocation and Remaking - Radio Communication and Navigation Equipment","slug":"airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115055,"registerId":"commonwealth-F2006B07998-current","compilationNumber":null,"startDate":"2026-04-03","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"Airworthiness Directives 2004 - Revocation and Remaking - Radio Communication and Navigation Equipment","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\nRadio Communication and Navigation Equipment\n\nAD Name AD Number\n\nBendix Transmitters, Type TA-2 Series - Modular Connecting Lead - AD/RAD/1\n\nBendix Transmitters, Type TA-2 Series - Sub-Panel Cover Plate - Modification AD/RAD/2\n\nCollins Transmitter, Type 18S-1, 2 and 3 - Replacement of Resistor R209 - AD/RAD/3\n\nBendix D.F. Receiver Mechanical Filter Circuit - Modification AD/RAD/4\n\nCollins Glide Slope Receivers, Flag Alarm and Deviation Circuits - Modification AD/RAD/5\n\nBendix VHF Nav. Receivers, Flag Alarm and Deviation Circuit Modification AD/RAD/6\n\nMarconi Automatic Loops - Capacitor Insulation - Modification AD/RAD/7\n\nChannel Tuning Mechanism AWA VHF Nav/Com Receiver AD704 - Modification AD/RAD/8\n\nRexair Amspeaker - Fuse Installation AD/RAD/9 Amdt 1\n\nVHF Transceiver - Modification - CANCELLED AD/RAD/10\n\nVHF Transceiver - Modification AD/RAD/11 Amdt 2\n\nHF Transceiver - Modification - CANCELLED AD/RAD/12\n\nVHF Transceiver Circuit Protection - Modification AD/RAD/13 Amdt 1\n\nHF Transceiver - Modification - CANCELLED AD/RAD/14\n\nLocaliser Flag Circuit - Modification AD/RAD/15\n\nLocaliser and Glide Slope Flag Circuit - Modification AD/RAD/16\n\nAWA VC-10 VHF Transceiver - Modification AD/RAD/17\n\nAircom VHF Transceiver - Modification - CANCELLED AD/RAD/18\n\n'Aircom' VHF Transceiver - Modification AD/RAD/19\n\nKing VHF - KTR-900 Transceiver - Modification AD/RAD/20\n\nInstrument Landing Systems (ILS) Instrumentation AD/RAD/21\n\nPress-to-Talk Assembly - Modification AD/RAD/22\n\nPantronics/Cessna HF Transceiver - Modification - CANCELLED AD/RAD/23\n\nSunair HF Transceiver Modification - CANCELLED AD/RAD/24\n\nBayside VHF Transceiver Modification or Retirement AD/RAD/25\n\nLeigh Emergency Locator Transmitter Systems - Modification AD/RAD/26 Amdt 1\n\nChromalloy Rescue Locator Beacon - Withdrawal from Service - CANCELLED AD/RAD/27\n\nGarrett Rescue 88A Crash Locator Beacon AD/RAD/28\n\nSunair HF Transceiver - Modification AD/RAD/29\n\n  \nSunair HF Transceiver - Modification AD/RAD/30\n\nSunair HF Transceiver - Modification AD/RAD/31\n\nGarrett Emergency Locator Transmitter AD/RAD/32\n\nRadio Magnetic Indicator - Modification AD/RAD/33\n\nSunair HF Transceiver - Modification AD/RAD/34\n\nEmergency Locator Transmitters and Crash Locator Beacons - Inspection - AD/RAD/35 Amdt 1\n\nCollins ADF Type ADF-650 - Operation From 27.5 Volt Supply AD/RAD/36 Amdt 1\n\nNarco VHF NAV OBS Gear Assembly - Modification AD/RAD/37\n\nCollins ATC Transponder TDR-950 - Modification AD/RAD/38\n\nLithium-Sulphur Dioxide Batteries AD/RAD/39 Amdt 1\n\nNarco ADF-141 - Modification - CANCELLED AD/RAD/40\n\nFairchild Cockpit Voice Recorder - Inspection and Modification - CANCELLED AD/RAD/41\n\nSunstrand Cockpit Voice Recorders - Modification - CANCELLED AD/RAD/42\n\nATC Transponder Systems with Active Mode C AD/RAD/43 Amdt 5\n\nCollins DME-42 Distance Measuring Equipment AD/RAD/44\n\nKing KDM 7000B Distance Measuring Equipment AD/RAD/45\n\nBendix/King VN 411B VHF Nav Receiver AD/RAD/46\n\nPeriodic Testing of ATC Transponders AD/RAD/47 Amdt 1\n\nCollins TCAS II and TCAS 94 Systems AD/RAD/48\n\nCollins TPR-720 ATC Radar Beacon System/Mode S Transponders AD/RAD/49\n\nPeriodic Maintenance of Emergency Locator Transmitters - CANCELLED AD/RAD/50 Amdt 1\n\nRockwell International/Collins Aviation Division TDR-94D Transponder AD/RAD/51\n\nRockwell International, Collins Air Transport Division DME-700 AD/RAD/52\n\nAustralian Domestic Distance Measuring Equipment AD/RAD/53\n\nTerra Transponders AD/RAD/54\n\nRockwell International, Collins Air Transport Division, TCAS II Processors AD/RAD/55\n\nHoneywell, Commercial Flight Systems Group, TCAS II Processors AD/RAD/56\n\nAlliedSignal, Air Transport Avionics TCAS II Processors AD/RAD/57\n\nAlliedSignal CAS-81 TCAS II AD/RAD/58 Amdt 1\n\nCentaurus Ground Proximity Warning System AD/RAD/59\n\nGNS-XLS/GNS-XL Warning Placard AD/RAD/60 Amdt 1\n\nGPS Installation for Non-Precision Approaches - CANCELLED AD/RAD/61\n\nKLN 89B RAIM Warning AD/RAD/62\n\nKT 76A ATC Transponder AD/RAD/63\n\nSkywatch SKY497 AD/RAD/64\n\nVN 411B VHF Navigation Receiver AD/RAD/65\n\n  \nMode S Altitude AD/RAD/66\n\nSkyforce Avionics Skymap and Tracker II Units AD/RAD/67\n\nMode C Transponder Altitude Checks AD/RAD/68 Amdt 2\n\nAlliedSignal RIA-32A ILS Receiver AD/RAD/69\n\nAerodata AeroNav II and III Display Units AD/RAD/70\n\nChelton VOR/LOC High Pass Filter Type 7-429/1 AD/RAD/71\n\nApollo SL30 VHF NAVCOM AD/RAD/72\n\nRockwell Collins CTL-92 Transponder Control Panel AD/RAD/73\n\nGarmin GNS 430 AD/RAD/74\n\nTDR-94/TDR-94D Transponders AD/RAD/75\n\nHoneywell Primus II RNZ-850 or -851 Integrated Navigation Units AD/RAD/76\n\nGoodrich Avionics Systems TAWS8000 AD/RAD/77 Amdt 1\n\nBecker AR4201 VHF Transceiver AD/RAD/78\n\nThales Avionics TA/RA VSI-TCAS Indicator AD/RAD/79 Amdt 1\n\nAT150 Transponder AD/RAD/80\n\nGarmin GTX330/330D Mode S Transponder AD/RAD/81\n\nPrevent GPS Navigation unit from Providing Erroneous Cross-Deviation AD/RAD/82\n\nHoneywell MST 67A Transponder AD/RAD/83","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":6,"scope_assessment":{"changed":false,"description":"The instrument does not change the substantive scope of the listed Airworthiness Directives; it administratively revokes and re‑issues them in the same form to create separate instruments. Any effects are administrative (filing, record‑keeping, and compliance confirmation) rather than substantive changes to obligations."},"complexity_factors":["Large schedule listing many distinct ADs (dozens), creating broad applicability across many aircraft types and equipment.","Mixed statuses within the list (amendments noted as 'Amdt', multiple items marked 'CANCELLED'), increasing interpretive and compliance tracking burdens.","Legal mechanics: concurrent revocation and re‑making under delegated power (subreg 39.001(1)) — an administrative reshuffle that preserves substance but alters instrument form.","Note that each re‑made AD is attached or referenced as a separate instrument, producing cross‑reference and filing complexity for regulators and regulated parties.","Delegated signature (CASA delegate) concentrates the administrative decision and timing in the delegate, creating a single point of administrative discretion.","Although the instrument declares the re‑made ADs are 'exactly the same form' as the latest published editions (minimising substantive change), it imposes practical compliance costs on operators to confirm and record the new instruments."],"plain_english_summary":"This instrument revokes the specific Airworthiness Directives listed in Schedule 1 and re‑issues each one as a separate, identical Airworthiness Directive under the Civil Aviation Safety Authority delegate’s power (subreg 39.001(1)). Mechanically, it moves existing obligations into freshly made instruments without changing the technical content. It affects aircraft owners, operators, maintenance organisations and manufacturers, who remain responsible for complying with the remade ADs; the CASA delegate controls the administrative re‑issuance and timing."},"kimi_summary":{"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The scope remains exactly as intended. This is purely a machinery-of-government instrument to restructure existing Airworthiness Directives from a composite format into separate instruments. The Note explicitly confirms no substantive change to the directives' content."},"complexity_factors":["Single operative provision with two straightforward actions (revoke and remake)","No defined terms section — relies entirely on external references to the Civil Aviation Safety Regulations 1998","No conditional logic or nested exceptions — just a schedule listing 83 items","Technical complexity is externalised — the actual AD content is attached but not reproduced in the legislative text","Simple tabular schedule format (AD Name / AD Number)","No cross-references within the instrument itself beyond the generic reference to subregulation 39.001(1)"],"plain_english_summary":"This instrument is an administrative update by CASA that revokes 83 older Airworthiness Directives and immediately remakes them as 83 separate, standalone legal instruments. It preserves the exact technical requirements of each AD while modernising the legal form and cleaning up the statute book.\n\nIt affects aircraft owners/operators, maintenance engineers, and avionics manufacturers by keeping existing, legally binding safety obligations unchanged but easier to track and publish."},"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"}},"importantCases":[],"_links":{"self":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment","history":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment/history","analysis":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment/analysis","conflicts":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment/conflicts","importantCases":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment/important-cases","documents":"/api/acts/airworthiness-directives-2004-revocation-and-remaking-radio-communication-and-navigation-equipment/documents"}}