{"id":"F2006B04169","name":"AD/BEECH 76/11 - Elevator Down Cable","slug":"ad-beech-76-11-elevator-down-cable","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43922,"registerId":"commonwealth-F2006B04169-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 76/11 - Elevator Down Cable","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 76/11 Elevator Down Cable 2/82\n\nApplicability: All model 76 with S/Nos. ME-1 to ME-435.\n\nRequirement: 1. Remove the large inspection panel located in the centre of the bottom skin just aft of the Station 68 frame.\n\n    2. Drill a 3/8 inch diameter inspection hole in the forward flange to which the inspection panel was attached as follows:\n\nCentre the hole laterally on the elevator cable pulley and fore and aft on the flange. Use a thin bucking bar or wood block between the flange and the pulley and cable to prevent damage to the pulley and/or cable when drilling the inspection hole.\n\nNote: Aeroplane serial numbers ME-418 and subsequent have the 3/8 inch diameter inspection hole already drilled in the forward flange.\n\n    3. Deburr the inspection hole and visually inspect the elevator down cable for broken or frayed strands and ensure the cable is on the pulley under all three guard pins.\n\n    4. If the cable is riding over any of the guard pins, replace the P/N NAS 427K12 guard pins over which the cable was routed, replace the P/N NAS 314-25-1411 cable and rig in accordance with the Beech Model 76 Maintenance Manual.\n\n    5. Reinstall the inspection panel.\n\nNote: FAA AD 82-02-03 dated 8 January 1982 refers.\n\nCompliance: Before further flight.\n\nBackground: Overseas there have been two incidents of in flight elevator control cable separation due to misrouted cables.","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"Scope has not changed from the instrument's safety objective: it applies to all Beech Model 76 aeroplanes listed (S/N ME-1 to ME-435). The directive notes that serials ME-418 and subsequent already have the inspection hole drilled, but they remain within the addressed population and the directive's requirements stand (Requirement note)."},"complexity_factors":["Narrow, procedural technical task (remove panel, drill 3/8\" hole, deburr, visual inspect) — low interpretive complexity (Requirement steps 1–3).","Immediate compliance: must be done \"Before further flight\" — increases operational urgency but not technical difficulty (Compliance).","Potential parts replacement and rigging required (P/N NAS 427K12 guard pins; P/N NAS 314-25-1411 cable) and adherence to Beech Model 76 Maintenance Manual — requires certified maintenance capability and parts supply.","Access and tooling: requires drilling without damaging adjacent pulley/cable (use thin bucking bar or wood block) — modest skill and care required (Requirement 2).","Applicability is serial-number specific (ME-1 to ME-435); later serials (ME-418+) already have the inspection hole (Requirement note) — affects fleet planning and parts prioritisation.","Low administrative discretion: directive prescribes actions and part numbers; little room for alternative compliance."],"plain_english_summary":"This airworthiness directive requires owners/operators of Beechcraft Model 76 (serials ME-1 to ME-435) to open the lower inspection panel, create a 3/8\" inspection hole if absent, visually inspect the elevator down cable and pulley routing, and replace specified guard pins or the cable and rigging if the cable is misrouted. Compliance is mandatory before further flight because two overseas in‑flight cable separations prompted the 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"},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, targeted safety directive addressing a specific mechanical defect in a specific aircraft model. It has not expanded beyond its original purpose of mandating inspection and repair of the elevator down cable routing issue."},"complexity_factors":["Single, discrete mechanical task with 5 numbered steps","Only 2 defined applicability criteria (model 76, specific serial number range)","One conditional requirement (serial numbers ME-418+ exempt from drilling step)","One conditional action (replacement only required if cable is misrouted)","No cross-references to other legislation beyond a single FAA AD citation for background","No nested exceptions or complex logical structures","Total length: approximately 250 words"],"plain_english_summary":"This Airworthiness Directive orders immediate, before‑next‑flight inspections of the elevator down cable on Beechcraft 76 Duchess aircraft (S/N ME‑1 through ME‑435) and replacement if misrouted or damaged. It responds to overseas in‑flight cable failures caused by the cable running over guard pins instead of its pulley.\n\nCompliance is mandatory to prevent loss of pitch control and potential catastrophic accidents."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-76-11-elevator-down-cable","history":"/api/acts/ad-beech-76-11-elevator-down-cable/history","analysis":"/api/acts/ad-beech-76-11-elevator-down-cable/analysis","conflicts":"/api/acts/ad-beech-76-11-elevator-down-cable/conflicts","importantCases":"/api/acts/ad-beech-76-11-elevator-down-cable/important-cases","documents":"/api/acts/ad-beech-76-11-elevator-down-cable/documents"}}