{"id":"F2006B04289","name":"AD/BEECH 95/17 - Tachometer and Manifold Pressure Indicators - Calibration and Engine Limitation Placard","slug":"ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":44098,"registerId":"commonwealth-F2006B04289-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 95/17 - Tachometer and Manifold Pressure Indicators - Calibration and Engine Limitation Placard","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 95 (Travelair) Series Aeroplanes\n\n \n\n# AD/BEECH 95/17 Tachometer and Manifold Pressure\n\nIndicators - Calibration and Engine Limitation Placard\n\nApplicability: Models 95, B95, B95A, D95A, E95 with S/Nos TD-2 to TD-721.\n\n# 9/75\n\n \n\nRequirement: Action in accordance with Beechcraft SIs No 0723-241, or Hartzell Propeller SB No 107A.\n\n \n\nNote: FAA AD 75-13-02 refers.\n\n \n\nCompliance: 1. Placard installation and instrument and governor calibration to be performed within 100 hours’ time in service after 30 September 1975.\n\n \n\n2. Instrument calibrations to be performed at intervals not exceeding 2 years thereafter.\n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n\n \n","sortOrder":0}],"analysis":{"flash_summary":{"complexity_score":3,"scope_assessment":{"changed":false,"description":"The AD's scope as presented is consistent with a directive that applies to a defined set of Beechcraft 95 series aircraft and prescribes placard installation and recurring instrument/governor calibration according to specified service instructions/service bulletin. There is no indication in the supplied text that the scope (affected models/serials, required actions, or timing) has been altered from its stated terms (Applicability, Requirement, Compliance 1–2)."},"complexity_factors":["Narrow, well-defined applicability (specific models and serial number range) reduces complexity (Applicability).","Delegation of technical detail to external manufacturer/service-bulletin documents increases practical complexity (Requirement).","Initial compliance deadline tied to aircraft time-in-service and a historic calendar date requires operators to compute remaining allowable flight hours for compliance (Compliance 1).","A recurring biennial calibration obligation introduces ongoing scheduling and record-keeping obligations (Compliance 2).","The AD text does not include detailed enforcement, acceptable tolerances, or recordkeeping procedures; those practicalities rely on regulation implementation and the referenced documents (Requirement, Compliance 1–2)."],"plain_english_summary":"This AD affects Beechcraft 95 (Travelair) aircraft S/N TD-2 through TD-721 and requires installing an engine limitation placard and calibrating the tachometer, manifold pressure gauges and propeller governor per Beechcraft SI No.0723-241 or Hartzell SB No.107A. Initial work was required within 100 hours after 30 Sept 1975, with recalibration every two years. Owners/operators pay costs and must follow the referenced service instructions."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, time-bound safety directive with a narrow, specific scope (instrument calibration for particular Beechcraft models). It has not expanded beyond its original purpose of ensuring accurate engine instrumentation."},"complexity_factors":["Very short document (approximately 200 words)","Only 2 defined applicability criteria (aircraft models and serial numbers)","Simple two-part compliance structure with clear deadlines","No nested exceptions or conditional logic","Minimal cross-referencing (only 2 technical documents and 1 related FAA directive)","Straightforward imperative language ('Action in accordance with...')","Single purpose: calibration and placard installation"],"plain_english_summary":"This is an **Airworthiness Directive (AD)** — essentially a mandatory safety order issued by Australia's Civil Aviation Safety Authority (CASA) for specific aircraft.\n\n**What it does:**\nThis directive requires owners and operators of certain **Beechcraft 95 series aeroplanes** (Travelair models) to:\n- Install a **placard** (a warning/instruction label) showing engine limitations\n- **Calibrate** (check and adjust for accuracy) the tachometer (engine speed gauge) and manifold pressure indicators (engine power gauges)\n- Ensure the propeller governor is also properly calibrated\n\n**Who it affects:**\n- Owners and operators of Beechcraft models 95, B95, B95A, D95A, and E95 with serial numbers TD-2 through TD-721\n- Maintenance organisations servicing these aircraft\n\n**Why it matters:**\nInaccurate engine instruments can lead to pilots unknowingly over-stressing engines, potentially causing engine failure or catastrophic damage. This directive prevents that by ensuring pilots have accurate readings of engine performance and clear visual warnings of operating limits.\n\n**Key deadlines:**\n- The work had to be done within **100 hours of flying time** after 30 September 1975\n- **Recalibration** must occur every **2 years** thereafter\n\n**Technical references:**\nThe work must follow specific manufacturer instructions (Beechcraft Service Instruction 0723-241 or Hartzell Propeller Service Bulletin 107A). The FAA issued a similar directive (AD 75-13-02) in the United States."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard","history":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard/history","analysis":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard/analysis","conflicts":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard/conflicts","importantCases":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard/important-cases","documents":"/api/acts/ad-beech-95-17-tachometer-and-manifold-pressure-indicators-calibration-and-engine-limitation-placard/documents"}}