{"id":"F2006B06573","name":"AD/REC/2 - Fairchild Cockpit Voice Recorder - Inspection and Modification","slug":"ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":48348,"registerId":"commonwealth-F2006B06573-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/REC/2 - Fairchild Cockpit Voice Recorder - Inspection and Modification","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 107 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nCockpit Voice and Flight Data Recording Systems\n\nAD/REC/2 Fairchild Cockpit Voice Recorder \\- Inspection and Modification\n\n  \n2/93\n\nApplicability: Fairchild Industrial Products Cockpit Voice Recorder Model A100 Series, having Serial Numbers 4733 to 5260 inclusive.\n\nRequirement: Action in accordance with the technical requirements of Fairchild Industrial Products Alert Service Bulletin No CVR A140.\n\nNote: FAA Airworthiness Directive 81-04-06 Amendment 39-4039 refers.\n\nCompliance: This Directive becomes effective on 4 February 1993.\n\nNote: This Directive was previously issued as CAO 107 AD/RAD/41 with an effective date of 30 November 1981, prior compliance with that Directive is considered compliance with this Directive.\n\nBackground: Thermal insulation assembly PN 9300-A18 was omitted inadvertently from recorders within the serial number range quoted. This insulation must be installed to prevent the possibility of destruction of the recording tape in an aircraft accident involving fire.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1749},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This directive is a reissue of a previous airworthiness directive (CAO 107 AD/RAD/41, effective 30 November 1981) under the current AD numbering system. The scope remains identical, addressing the same specific safety defect regarding omitted thermal insulation in the identified recorder models."},"complexity_factors":["Narrow applicability restricted to specific serial number range (4733-5260)","Single technical requirement referencing external service bulletin (Fairchild Alert Service Bulletin No CVR A140)","No conditional logic, exceptions, or alternative compliance methods","Brief directive with minimal cross-references"],"plain_english_summary":"**What this requires**\n\nThis directive orders aircraft operators to inspect and modify specific Fairchild cockpit voice recorders (CVRs) — the \"black box\" devices that record pilot conversations and cockpit sounds. If you operate an aircraft with a Fairchild Model A100 Series CVR with serial numbers between 4733 and 5260, you must follow the manufacturer's service bulletin to install a missing thermal insulation part.\n\n**Who is affected**\n\nAircraft operators with Fairchild Model A100 Series cockpit voice recorders bearing serial numbers 4733 through 5260 inclusive.\n\n**Why this matters**\n\nThese recorders were accidentally built without a specific thermal insulation assembly (part number 9300-A18). Without this insulation, the recording tape could be destroyed by fire during an aircraft accident. Preserving these recordings is essential for accident investigators to determine what went wrong and prevent future crashes. This fix ensures the device can survive a fire, protecting critical evidence."}},"importantCases":[],"_links":{"self":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification","history":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification/history","analysis":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification/analysis","conflicts":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification/conflicts","importantCases":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification/important-cases","documents":"/api/acts/ad-rec-2-fairchild-cockpit-voice-recorder-inspection-and-modification/documents"}}