{"id":"F2006B03720","name":"AD/BEECH 200/68 - KA-33 Cooling Blower","slug":"ad-beech-200-68-ka-33-cooling-blower","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43310,"registerId":"commonwealth-F2006B03720-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"AIRWORTHINESS DIRECTIVE","sectionType":"part","heading":"AIRWORTHINESS DIRECTIVE","content":"# ![](image.001.png)  \nAIRWORTHINESS DIRECTIVE\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 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.\n\n![](image.001.png)\n\nBeechcraft 200 (Super King Air) Series Aeroplanes","sortOrder":0},{"sectionNumber":"AD/BEECH 200/68 KA-33 Cooling Blower 8/2","sectionType":"part","heading":"AD/BEECH 200/68 KA-33 Cooling Blower 8/2001","content":"# AD/BEECH 200/68 KA-33 Cooling Blower 8/2001\n\nApplicability: Beech Model B200, serial numbers BB-1314, BB-1449 through BB-1692 inclusive, equipped with Collins EFIS-84 System.\n\nRequirement: 1. Install an in-line fuse holder, part number (P/N) HHJ-A, and install a one ampere slow-blow fuse, P/N MDL1, in the fuse holder, in accordance with either Raytheon Mandatory Service Bulletin SB 34-3269, issued January 2000 or Revision 1, revised October 2000.\n\n2. Remove the fuse P/N GMW-1 from the Avionics Junction Box and install a new fuse P/N GMW-3, in accordance with either SB 34-3269 or SB 34-3269 Revision 1.\n\nNote: FAA AD 2001-11-03 Amdt 39-12244 refers.\n\nCompliance: For Requirement 1 - Within the next 600 hours time-in-service after the effective date of this Directive or the next six calendar months after the effective date of this Directive, whichever occurs first.\n\nFor Requirement 2 - Within the next 600 hours time-in-service after the effective date of this Directive or the next six calendar months after the effective date of this Directive, whichever occurs first.\n\nThis Airworthiness Directive becomes effective on 9 August 2001.\n\nBackground: The United States Federal Aviation Administration has received several reports of blower motors failing, seizing, smoking, and producing a burning odour that enters the cabin and passenger compartment. These events are the result of the blower motor having circuit protection of more than one ampere. This level of circuit protection does not prevent the blower motor from smoking and creating a burning odour should it fail or seize.","sortOrder":1}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The Directive is narrowly targeted to the specified B200 serial numbers fitted with Collins EFIS-84 and mandates two corrective hardware actions per the Raytheon Service Bulletin. There is no textual indication the AD expands or repurposes its original corrective scope beyond remedying the reported blower motor unsafe condition."},"complexity_factors":["Narrow applicability: limited to Beech Model B200 serial numbers BB-1314 and BB-1449 through BB-1692 equipped with Collins EFIS-84","Small number of corrective actions: two discrete hardware changes (install inline fuse holder + replace fuse)","Specific part numbers required (P/N HHJ-A, MDL1, GMW-3) increasing procurement precision","Mandatory compliance with Raytheon Service Bulletin SB 34-3269 or Revision 1 (dependency on manufacturer documentation)","Short, fixed compliance window (600 flight hours or six calendar months) affecting maintenance scheduling","Safety-critical electrical work that may require certified maintenance personnel and work order records","Cross-reference to FAA AD 2001-11-03 adds an external regulatory linkage for validation/traceability"],"plain_english_summary":"This Directive requires specific electrical changes on certain Beechcraft B200 (Super King Air) aeroplanes fitted with the Collins EFIS‑84: install an in‑line fuse holder with a 1 amp slow‑blow fuse and replace an Avionics Junction Box fuse with a specified part, following Raytheon Service Bulletin SB 34‑3269. It applies to listed serial numbers and must be done within 600 flight hours or six months to prevent blower motor failures that can smoke or emit a burning odour into the cabin."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a standard single-issue Airworthiness Directive addressing a specific unsafe condition in a defined aircraft population. The scope remains tightly focused on the cooling blower circuit modification as originally intended."},"complexity_factors":["Very short document (approximately 300 words)","Only 2 substantive requirements with clear part numbers and references to manufacturer service bulletins","Simple applicability test based on aircraft model, serial number range, and equipment type","Single compliance timeframe (600 hours or 6 months) applied identically to both requirements","No defined terms section, no cross-references to other legislation beyond the enabling regulation (CAR 1998 subreg 39.1(1))","No conditional logic, exceptions, or nested provisions","Straightforward factual background with clear causal chain (over-rated fuses → overheating risk)"],"plain_english_summary":"This CASA safety order requires owners/operators of certain Beechcraft Super King Air B200s equipped with Collins EFIS‑84 to fix a fire hazard in the avionics cooling circuit. It mandates installing a new fuse holder with a 1‑amp slow‑blow fuse and replacing a specified avionics junction‑box fuse to stop overheating blower motors.\n\nCompliance is required within 600 flight hours or six months from 9 August 2001. The aim is to prevent in‑flight smoke or fire after multiple incidents and follows FAA action."},"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-200-68-ka-33-cooling-blower","history":"/api/acts/ad-beech-200-68-ka-33-cooling-blower/history","analysis":"/api/acts/ad-beech-200-68-ka-33-cooling-blower/analysis","conflicts":"/api/acts/ad-beech-200-68-ka-33-cooling-blower/conflicts","importantCases":"/api/acts/ad-beech-200-68-ka-33-cooling-blower/important-cases","documents":"/api/acts/ad-beech-200-68-ka-33-cooling-blower/documents"}}