{"id":"F2006B03846","name":"AD/BEECH 35/50 - Tachometer Drive Cable Housing","slug":"ad-beech-35-50-tachometer-drive-cable-housing","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43455,"registerId":"commonwealth-F2006B03846-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 35/50 - Tachometer Drive Cable Housing","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 35 (Bonanza) Series Aeroplanes\n\n \n\nAD/BEECH 35/50 Tachometer Drive Cable Housing 5/76\n\nApplicability: Model P35 serials D-6842 thru D-7319 and D-7141 thru D- 7309. Requirement:  Action in accordance with Beechcraft SB 0784-241.\n\nNote: FAA AD 76-03-05 refers.\n\n \n\nCompliance: Within 100 hours time in service after 31 May 1976.\n\n \n","sortOrder":0}],"analysis":{"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 range. It has not expanded beyond its original purpose of ensuring tachometer cable housing integrity in affected Beechcraft P35 aircraft."},"complexity_factors":["Extremely short document (under 150 words)","Only 4 defined elements: applicability (specific aircraft models/serials), requirement (reference to single service bulletin), compliance deadline, and cross-reference to FAA AD","No conditional logic or nested exceptions","Single external reference (Beechcraft SB 0784-241) — actual technical requirements contained in referenced document, not in the AD itself","Clear, unambiguous compliance deadline with no alternative methods or exceptions stated"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA). It requires owners and operators of specific Beechcraft Bonanza aeroplanes to inspect or fix a problem with the **tachometer drive cable housing** (the protective casing around the cable that transmits engine speed readings to the cockpit gauge).\n\n**Who it affects:**\n- Owners and operators of **Beechcraft Model P35 Bonanza** aeroplanes with specific serial numbers (D-6842 through D-7319 and D-7141 through D-7309)\n\n**What must be done:**\n- Follow the instructions in **Beechcraft Service Bulletin SB 0784-241** (a manufacturer's technical notice detailing the required inspection or repair)\n\n**When it must be done:**\n- Within **100 hours of flying time** after 31 May 1976\n\n**Why it matters:**\nAirworthiness Directives are legally binding safety orders. Non-compliance means the aircraft cannot legally fly. This particular AD addresses a potential defect that could cause the tachometer (engine speed gauge) to fail, which could lead to engine damage or unsafe flight conditions if the pilot cannot monitor engine performance properly."},"flash_summary":{"complexity_score":2,"scope_assessment":{"changed":false,"description":"The instrument, as published, applies to the specified P35 serial-number ranges and requires action in accordance with Beechcraft SB 0784-241 to be completed within 100 hours after 31 May 1976. There is no text in the supplied instrument that narrows or broadens that applicability or the required action versus the stated requirement; the AD also notes the related FAA AD. Therefore, based on the supplied text, the scope has not been changed from the directive as written."},"complexity_factors":["Narrow, clearly enumerated applicability (specific serial-number ranges). (Applicability)","Substantive technical work is delegated to an external document (Beechcraft SB 0784-241), creating a dependency on that bulletin for details. (Requirement)","Short, fixed compliance window (100 hours after a stated date) imposes scheduling pressure. (Compliance)","Cross-reference to an FAA AD may require operators to consult multiple regulatory/technical sources. (Note)","Little regulatory discretion in the AD text itself; complexity lies mainly in operational/maintenance logistics rather than legal interpretation."],"plain_english_summary":"This Airworthiness Directive requires registered owners/operators of specific Beechcraft Model P35 serials to have the tachometer drive cable housing addressed per Beechcraft Service Bulletin 0784-241, to be completed within 100 hours time-in-service after 31 May 1976. Issued by CASA (and referencing FAA AD 76‑03‑05), the AD mandates compliance with the manufacturer bulletin; owners/operators bear costs and must schedule work within the tight compliance window."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing","history":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing/history","analysis":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing/analysis","conflicts":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing/conflicts","importantCases":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing/important-cases","documents":"/api/acts/ad-beech-35-50-tachometer-drive-cable-housing/documents"}}