{"id":"F2006B03796","name":"AD/BEECH 33/3 - Insulation of Tachometer Flexdrive","slug":"ad-beech-33-3-insulation-of-tachometer-flexdrive","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43392,"registerId":"commonwealth-F2006B03796-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 33/3 - Insulation of Tachometer Flexdrive","content":"---\nmeta-content-style-type: text/css\nmeta-content-type: application/xhtml+xml; charset=utf-8\nmeta-generator: Aspose.Words for .NET 22.10.0\n---\n\n?xml version=\"1.0\" encoding=\"utf-8\" standalone=\"no\"?>\n\nCOMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY\n\nSCHEDULE OF AIRWORTHINESS DIRECTIVES\n\n \n\n![](image.001.png)  Beechcraft 33 and 35-33 (Debonair/Bonanza) Series Aeroplanes\n\n \n\nAD/BEECH 33/3 Insulation of Tachometer Flexdrive 11/67\n\nApplicability: Model 35-C33.\n\n \n\nRequirement: Install an insulating sleeve on the tachometer flexdrive just forward of the firewall and directly under the head of the battery relay positive terminal.\n\n \n\nNote: A piece of thick walled nylex tubing of suitable diameter cut to pass over the tachometer flexdrive and then bound into position would be satisfactory.\n\n \n\nCompliance: Within 100 hours time in service after 7 September 1967.\n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1373},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"The directive maintains its original narrow scope as a specific airworthiness requirement addressing the tachometer flexdrive insulation on Model 35-C33 aircraft. There is no evidence of scope creep or expansion beyond this specific safety fix."},"complexity_factors":["Single, specific mechanical requirement with no alternatives or exceptions","No defined terms or interpretation sections","Zero cross-references to other legislative provisions","Applicability limited to one specific aircraft model (Model 35-C33)","Simple compliance timeframe with no conditional triggers"],"plain_english_summary":"CASA requires owners/operators of Beechcraft Model 35‑C33 to fit an insulating sleeve over the tachometer flexdrive just forward of the firewall, positioned beneath the battery relay positive terminal.  \n\nUse thick‑walled nylon tubing secured over the cable within 100 hours time‑in‑service after 7 Sept 1967 to prevent metal contact that could cause electrical shorting, fire, or instrument failure."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive","history":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive/history","analysis":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive/analysis","conflicts":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive/conflicts","importantCases":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive/important-cases","documents":"/api/acts/ad-beech-33-3-insulation-of-tachometer-flexdrive/documents"}}