{"id":"F2006B04098","name":"AD/BEECH 60/38 - Air Conditioning Compressor Pulley Guard and Retaining Bolt","slug":"ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"in_force","isInForce":true,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":43773,"registerId":"commonwealth-F2006B04098-current","compilationNumber":null,"startDate":"2026-04-02","status":"InForce","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BEECH 60/38 - Air Conditioning Compressor Pulley Guard and Retaining Bolt","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 60 (Duke) Series Aeroplanes\n\n \n\nAD/BEECH 60/38 Air Conditioning Compressor Pulley\n\nGuard and Retaining Bolt\n\n\n4/83\n\n \n\nApplicability: All models 60, A60 and B60 with S/Nos. P-4 to P-577, P-579 to P-587 and P-589 and P-592.\n\n \n\nRequirement: Action in accordance with Beechcraft SI No. 1236. Compliance:  Within 100 hours’ time in service after 30 May 1983.\n\nBackground: The installation of a compressor pulley guard is considered mandatory by the manufacturer to reduce the possibility of the clutch coming in contact with a fuel line.\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\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":2,"scope_assessment":{"changed":false,"description":"The directive's scope is the same as stated in the instrument: it applies only to the listed Beechcraft 60, A60 and B60 serial numbers and requires the action described by Beechcraft SI No. 1236 within the specified 100-hour time-in-service window. There is no indication in the instrument that the applicability, required action, or compliance timeframe has been altered from what is set out in the AD."},"complexity_factors":["Narrow technical scope: single modification (compressor pulley guard and retaining bolt).","Explicit, limited applicability: specific models and enumerated serial numbers restrict affected population. (Applicability)","External dependency: compliance requires following Beechcraft Service Instruction No. 1236 rather than containing technical steps in the AD itself. (Requirement)","Time-limited compliance metric: deadline expressed as 'within 100 hours’ time in service after 30 May 1983', requiring operators to measure and schedule by flight hours. (Compliance)","No financial, supplier or labour details provided in the text—practical implementation details left to operators."],"plain_english_summary":"The directive mandates installation of an air‑conditioning compressor pulley guard and retaining bolt on specified Beechcraft Model 60 (including A60/B60) aircraft, to be done per Beechcraft Service Instruction No. 1236. It applies to listed serial numbers and must be completed within 100 hours’ time in service after 30 May 1983. The rule aims to prevent compressor‑clutch contact with a fuel line and places responsibility for arranging and carrying out the work on owners/operators."},"kimi_summary":{"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This is a discrete, original Airworthiness Directive issued in 1983. It has not expanded beyond its original narrow purpose of addressing a specific mechanical defect in specific aircraft serial numbers."},"complexity_factors":["Single, discrete mechanical requirement (install guard and bolt per manufacturer instruction)","No defined terms section or interpretive provisions","No cross-references to other legislation beyond the parent Civil Aviation Regulations 1998","Simple conditional logic: applies only to listed serial numbers","Single compliance deadline (100 hours time-in-service from specified date)","Extremely short document (under 200 words of substantive content)"],"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:**\nOrders owners and operators of certain Beechcraft 60 \"Duke\" series aeroplanes to install a guard around the air conditioning compressor pulley and replace a retaining bolt, following the manufacturer's Service Instruction No. 1236.\n\n**Who it affects:**\nOwners and operators of Beechcraft 60, A60 and B60 models with specific serial numbers (P-4 to P-577, P-579 to P-587, and P-589 and P-592).\n\n**Why it matters:**\nWithout this guard, the air conditioning clutch could contact a fuel line, creating a fire or explosion risk. The directive makes this fix compulsory — not optional — and sets a deadline: complete it within 100 flight hours after 30 May 1983.\n\n**Key point:** Airworthiness Directives are legally binding. Flying an aircraft without complying with an applicable AD can ground the aircraft or expose the operator to penalties."}},"importantCases":[],"_links":{"self":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt","history":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt/history","analysis":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt/analysis","conflicts":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt/conflicts","importantCases":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt/important-cases","documents":"/api/acts/ad-beech-60-38-air-conditioning-compressor-pulley-guard-and-retaining-bolt/documents"}}