{"id":"F2006B04173","name":"AD/BEECH 76/15 - Woodward Governor Models L and R 210652","slug":"ad-beech-76-15-woodward-governor-models-l-and-r-210652","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43926,"registerId":"commonwealth-F2006B04173-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 76/15 - Woodward Governor Models L and R 210652","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 76 (Duchess) Series Aeroplanes\n\nAD/BEECH 76/15 Woodward Governor Models L and R 210652 12/83\n\nApplicability: Model 76 with serial numbers ME-1, ME-3 thru ME-395, ME-397, thru ME-404, ME-406, ME-408 thru ME-411, ME-413, ME-414, ME-416, thru ME-419, ME-421, ME-423, ME-425, thru ME-428, ME-430, ME-432 and ME-437.\n\nRequirement: Part 1. Check, and adjust if necessary, the propeller unfeathering accumulator air pressure, in accordance with the Beech 76 Maintenance Manual.\n\nPart 2. Modify the propeller governor in accordance with Woodward Service Bulletin 33581.\n\nNote: Woodward Service Bulletin 33581 and Beech Safety Communique 76-66 refer.\n\nCompliance: Part 1. Within 25 hours’ time in service after 21 November 1983 and thereafter at intervals not exceeding 25 hours’ time in service until modified in accordance with Part 2.\n\nPart 2. Within 100 hours’ time in service after 21 November 1983 or at the next scheduled inspection for Maintenance Release issue after 21 November 1983 whichever is the later.\n\nBackground: The manufacturer advises the need to periodically check the accumulator air pressure, prior to modifying the propeller governor, to prevent possible propeller unfeathering failure.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2044},"content_quality":"ok","complexity_score":3,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope addressing a specific propeller governor safety defect identified by the manufacturer. It targets only the affected Beechcraft 76 serial numbers and requires specific technical remedies without expanding into unrelated operational areas."},"complexity_factors":["Technical aviation terminology requiring specialist knowledge (propeller unfeathering accumulator, governor modifications)","External cross-references to manufacturer service bulletins and maintenance manuals not included in the text","Detailed serial number applicability with multiple ranges and omissions (ME-3 thru ME-395, etc.)","Dual compliance pathways with interdependent timelines (Part 1 checks required until Part 2 modification completed)"],"plain_english_summary":"This Airworthiness Directive requires owners of specified Beechcraft Model 76 Duchess airframes (listed serial numbers ME‑1 through ME‑437, with gaps) to inspect and, if needed, adjust the propeller unfeathering accumulator pressure every 25 flight hours until a permanent governor modification is installed per Woodward Service Bulletin 33581. The modification must be done within 100 flight hours (or at the next scheduled check). It prevents propellers failing to unfeather in flight, which could cause loss of engine power."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652","history":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652/history","analysis":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652/analysis","conflicts":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652/conflicts","importantCases":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652/important-cases","documents":"/api/acts/ad-beech-76-15-woodward-governor-models-l-and-r-210652/documents"}}