{"id":"F2006B08179","name":"AD/CESSNA 310/51 Amdt 1 - Powerplant Fire Detection System - Installation","slug":"ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":115381,"registerId":"commonwealth-F2006B08179-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 310/51 Amdt 1 - Powerplant Fire Detection System - Installation","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)  \nCessna 310 Series Aeroplanes\n\nAD/CESSNA 310/51\n\nAmdt 1\n\n  \n\nPowerplant Fire Detection System - Installation\n\n  \n9/84\n\nApplicability: All turbocharged Model 310 Series.\n\nRequirement: 1. Install a powerplant fire detection system complying with a specification acceptable to the Secretary.\n\n2. Ensure that maintenance instructions for the system are adequately detailed in the approved maintenance system for the aircraft.\n\nNote 1: Fire detection systems which have been shown to comply with paragraph 1203 of Part 23 of the US Federal Aviation Regulations are acceptable as complying with this Airworthiness Directive.\n\nNote 2: It is recommended, in the interest of safety, that when complying with this Directive, consideration be given to the installation of both audible fire warning devices and fire extinguisher systems. A suitable standard for this can be found in ANO 101.4 Para 6.14.\n\nCompliance: Before 1 April 1983.\n\nBackground: a. This Directive has been amended in order to clarify the intent of Note 2 in the Requirement.\n\nb. Hot gas escaping from failed exhaust manifolds has caused serious structural damage to nacelles and wings. This damage may remain undetected in flight with potentially fatal results. In order to reduce this threat fire detectors are to be installed.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1247},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":true,"description":"The directive was amended to clarify the intent of Note 2 regarding the recommendation for additional safety measures (audible fire warnings and extinguisher systems), suggesting the original scope was interpreted differently than intended."},"complexity_factors":["Cross-references to external technical standards (US Federal Aviation Regulations Part 23)","Reference to Civil Aviation Order (ANO) 101.4)","Use of defined aviation terms ('approved maintenance system', 'Secretary') requiring contextual knowledge","Amendment structure clarifying intent of previous version"],"plain_english_summary":"This is a safety rule requiring owners of **turbocharged Cessna 310 series aircraft** to install fire detection systems in the engine compartments (powerplants).\n\n**What you must do:**\n*   Install a fire detection system that meets technical specifications approved by the Secretary (the relevant government official responsible for aviation safety)\n*   Ensure the aircraft's official maintenance manual includes detailed instructions for looking after this system\n\n**Why this matters:**\nHot gas escaping from cracked or broken exhaust manifolds has previously caused serious structural damage to engine housings and wings. Without detection systems, this damage can go unnoticed during flight, potentially leading to fatal accidents.\n\n**Additional recommendations (not mandatory):**\nWhile not strictly required, the directive strongly recommends installing **audible fire alarms** and **fire extinguisher systems** for extra safety."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation","history":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation/history","analysis":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation/analysis","conflicts":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation/conflicts","importantCases":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation/important-cases","documents":"/api/acts/ad-cessna-310-51-amdt-1-powerplant-fire-detection-system-installation/documents"}}