{"id":"F2006B03898","name":"AD/BEECH 36/42 Amdt 1 - Engine Fuel Metering Unit","slug":"ad-beech-36-42-amdt-1-engine-fuel-metering-unit","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43507,"registerId":"commonwealth-F2006B03898-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 36/42 Amdt 1 - Engine Fuel Metering Unit","content":"COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 \\- 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n![](image.001.png)  \nBeechcraft 36 (Bonanza) Series Aeroplanes\n\nAD/BEECH 36/42\n\nAmdt 1\n\n  \nEngine Fuel Metering Unit 9/96\n\nApplicability: Bonanza A36TC aircraft serial numbers EA-1 through EA-146.\n\nRequirement: To reduce the possibility of a fuel leak which could result in an engine compartment fire, carry out the requirements detailed in Beechcraft Mandatory Service Bulletin (MSB) Number 2420 Revision 1, \"Accomplishment Instructions\", Parts I or II and III.\n\nNote: FAA Airworthiness Directive 92-17-01 refers.\n\nCompliance: Effective 15 August 1996:\n\n    Beechcraft MSB No. 2420 Rev.1, \"Accomplishment Instructions\" Parts I or II; within 50 hours time in service.\n\n    2. Beechcraft MSB No. 2420 Rev.1, \"Accomplishment Instructions\" Part III; at intervals not to exceed 130 hours time in service.\n\nBackground: This directive was originally issued in March 1993 to require the inspection and modification of the engine fuel metering unit. The requirement was published to reduce the possibility of a fuel leak which could result in an engine compartment fire. This amendment introduces a requirement to fit a fuel metering unit drain hose with a higher temperature tolerance material, and a requirement to carry out a repetitive inspection of that drain hose.\n\nThe original issue of this Airworthiness Directive became effective on 4 March 1993.","sortOrder":0}],"analysis":{"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment stays tightly focused on its original purpose: preventing fuel leaks and engine fires in the fuel metering unit. The changes (adding a hose material upgrade and repetitive inspection) are incremental safety enhancements directly related to the original 1993 directive's intent. No scope creep is evident."},"complexity_factors":["Single, clearly defined applicability (one aircraft model, specific serial numbers)","Only 2 substantive compliance requirements with clear timeframes","References only one external document (Beechcraft MSB 2420 Rev.1)","No defined terms section, no cross-references to other legislation","Background section provides clear context without adding legal conditions","Total length is approximately 200 words"],"plain_english_summary":"This Airworthiness Directive mandates owners/operators of specific Beechcraft Bonanza A36TC (s/n EA-1–EA-146) to modify or inspect the engine fuel metering unit within 50 flight hours and to perform recurring drain-hose inspections every 130 hours.\n\nThe amendment requires a higher-temperature drain hose and regular inspections to reduce fuel-leak and engine-fire risk; compliance is mandatory in Australia for affected aircraft to remain airworthy."},"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"},"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":true,"description":"The original AD required inspection and modification of the engine fuel metering unit to reduce fuel‑leak/fire risk. This amendment adds a mandatory fitment of a higher‑temperature drain hose and requires repetitive inspections of that hose, increasing ongoing maintenance obligations for the same affected fleet."},"complexity_factors":["Narrow technical scope limited to specific serial-numbered fleet (EA-1–EA-146)","Direct reliance on an external document: Beechcraft MSB No. 2420 Rev.1 for accomplishment instructions","Requires a technical retrofit (higher‑temperature drain hose) and repetitive inspections — needs qualified maintenance personnel","Prescribed compliance timing (initial work and recurring inspection intervals) imposes scheduling and record‑keeping burdens","Cross-reference to FAA AD adds an external regulatory link for interpretation or precedent"],"plain_english_summary":"This Airworthiness Directive requires owners/operators of Beechcraft Bonanza A36TC aeroplanes (serials EA-1–EA-146) to fit a higher‑temperature drain hose to the engine fuel metering unit and to carry out modification and inspection work described in Beechcraft Mandatory Service Bulletin No. 2420 Rev.1. The measure is intended to reduce the risk of a fuel leak and possible engine‑compartment fire. CASA enforces the AD; operators pay for parts and labour, must schedule the work and adopt repetitive drain‑hose inspections into ongoing maintenance."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit","history":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit/history","analysis":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit/analysis","conflicts":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit/conflicts","importantCases":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit/important-cases","documents":"/api/acts/ad-beech-36-42-amdt-1-engine-fuel-metering-unit/documents"}}