{"id":"F2006B03651","name":"AD/BEECH 1900/33 - Cockpit Voice Recorder Audio Amplifier","slug":"ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43241,"registerId":"commonwealth-F2006B03651-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.002.png)\n\n![](image.002.png)  \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 CAR 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.","sortOrder":0},{"sectionNumber":"AD/BEECH 1900/33 Cockpit Voice Recorder ","sectionType":"part","heading":"AD/BEECH 1900/33 Cockpit Voice Recorder Audio Amplifier 12/2000","content":"# AD/BEECH 1900/33 Cockpit Voice Recorder Audio Amplifier 12/2000\n\nApplicability: 1. Model 1900 and 1900C series aeroplanes as follows:\n\n    all serial number aeroplanes with Raytheon Aircraft Company (RAC) Kit No 114-3020 variation (-1, -3, -7, or -9) incorporated,\n\n    b. all serial number aeroplanes with RAC Kit No 114-3032-1 incorporated,\n\n    c. all serial number aeroplanes with RAC Kit No 114-3008-1 incorporated, and\n\n    d. all serial number aeroplanes where RAC installed the CVR.\n\n2. Model 1900D series aeroplanes serial numbers UE-1 through UE-376. Requirement: Modify the Cockpit Voice Recorder (CVR) system in accordance with the\n\nAccomplishment Instructions Section of Raytheon Service Bulletin SB 23-3094\n\nissued November 1999.\n\nNote: FAA AD 2000-20-07 Amdt 39-11918 refers.\n\nCompliance: Before 30 November 2001.\n\nThis Airworthiness Directive becomes effective on 30 November 2000.\n\nBackground: The United States Federal Aviation Administration has received reports of six instances where the recording quality of the CVR system in Raytheon Beech Models 1900, 1900C, and 1900D aeroplanes was so poor that the information was practically unrecoverable.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD confines itself to aircraft with the listed Raytheon kit numbers or within the specified 1900D serial range and mandates modification per Raytheon SB 23-3094 to correct poor CVR recording quality. It does not broaden applicability beyond those installations or add additional types of equipment or aircraft; the measure is aligned with the stated safety problem (Applicability; Requirement; Background)."},"complexity_factors":["Applicability lists multiple kit numbers and variations (-1, -3, -7, -9) and a confined serial-number range (1900D UE-1 to UE-376), requiring operators to check records (Applicability).","Mandatory technical work must be done in accordance with a manufacturer service bulletin (Raytheon SB 23-3094), creating reliance on the SB's instructions for compliance (Requirement).","A fixed compliance deadline (Before 30 November 2001) creates timing pressure for affected operators and maintenance organisations (Compliance).","Background cites six reports of practically unrecoverable CVR recordings, which narrows the AD to a specific failure mode but requires verification that the aircraft have the listed installations (Background).","Cross-reference to FAA AD 2000-20-07 introduces bilateral/regulatory alignment considerations for operators working across jurisdictions (Note).","Implementation cost and labour are borne by operators/owners because the AD requires modification on affected aircraft (Requirement; Compliance)."],"plain_english_summary":"This Airworthiness Directive orders operators of Beech 1900/1900C aeroplanes fitted with specific Raytheon kit numbers (114-3020 variations, 114-3032-1, 114-3008-1) or where Raytheon installed the CVR, and Model 1900D serials UE-1 to UE-376, to modify the cockpit voice recorder audio amplifier following Raytheon Service Bulletin SB 23-3094. Compliance is required by 30 November 2001. The regulator cites six incidents of unrecoverable CVR audio as the safety driver. (Applicability; Requirement; Compliance; Background.)"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This Airworthiness Directive maintains its original narrow scope. It addresses a specific unsafe condition (poor CVR recording quality) in specific aircraft models through a specific technical fix. There is no evidence of scope creep or expansion beyond the original safety purpose."},"complexity_factors":["Single, specific technical requirement (install modification per service bulletin)","Limited applicability section with clearly enumerated aircraft models and serial numbers","No nested exceptions or conditional logic","Only 4 defined applicability categories","Straightforward compliance deadline with no phased implementation","Short document (approximately 250 words)","Single cross-reference to FAA AD 2000-20-07 (informational only)"],"plain_english_summary":"CASA requires owners/operators of certain Beechcraft 1900, 1900C and 1900D (including affected serials and aircraft with particular Raytheon mod kits) to install a hardware modification to the Cockpit Voice Recorder per Raytheon Service Bulletin SB 23-3094, completed by 30 November 2001.\n\nThe order follows six US incidents of unreadable CVR audio that hindered investigations; the modification preserves recoverable cockpit audio crucial for accident analysis and safety."},"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/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier","history":"/api/acts/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier/history","analysis":"/api/acts/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier/analysis","conflicts":"/api/acts/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier/conflicts","importantCases":"/api/acts/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier/important-cases","documents":"/api/acts/ad-beech-1900-33-cockpit-voice-recorder-audio-amplifier/documents"}}