{"id":"F2006B09192","name":"AD/DHC-8/36 - Electrical Power - Battery Temperature Monitor","slug":"ad-dhc-8-36-electrical-power-battery-temperature-monitor","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":52995,"registerId":"commonwealth-F2006B09192-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/DHC-8/36 - Electrical Power - Battery Temperature Monitor","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)  \nBombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes\n\nAD/DHC-8/36 Electrical Power \\- Battery Temperature Monitor 2/95\n\nApplicability: All DHC-8 Series 102, 103, 106, 301, 311, and 314, serial numbers 003 through 389 inclusive, with Ametek/Weston battery temperature monitor part number (P/N) 522487 installed.\n\nRequirement: Replace the battery temperature monitor P/N 522487 with a modified monitor P/N 522487-1, in accordance with Bombardier Regional Aircraft Division de Havilland Dash 8 Service Bulletin 8-24-53 dated 7 September 1994.\n\nNote: Transport Canada Aviation AD CF-94-22 dated 24 November 1994 refers.\n\nCompliance: Prior to 31 July 1995.\n\nBackground: Transport Canada Aviation advise that several incidents of battery temperature monitor failures have been reported, which caused heavy smoke in the flight compartment requiring emergency action to be taken by flight crew.\n\nThis Directive requires the replacement of the monitors, averting the generation of smoke in the flight compartment.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2072},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"The directive maintains a targeted scope focused solely on rectifying a specific component failure mode (battery temperature monitor smoke generation) in defined aircraft models. No evidence of scope expansion beyond the original safety-critical purpose."},"complexity_factors":["Narrow applicability criteria combining specific aircraft series, serial number ranges (003-389), and exact part numbers (P/N 522487)","External technical reference to manufacturer service bulletin for implementation procedures","Cross-reference to equivalent Canadian aviation directive (Transport Canada AD CF-94-22)","Single, unambiguous compliance action with hard deadline"],"plain_english_summary":"This Airworthiness Directive (a mandatory safety order) requires operators of specific Bombardier Dash 8 aircraft to replace a faulty battery component that has been causing dangerous smoke in the cockpit.\n\n**Who is affected:**\n- Airlines operating DHC-8 Series 102, 103, 106, 301, 311, or 314 aircraft (specifically serial numbers 003 to 389)\n- Only if the aircraft has an Ametek/Weston battery temperature monitor with part number 522487 installed\n\n**What must be done:**\n- Replace the existing monitor (part number 522487) with a modified version (part number 522487-1)\n- Follow the technical instructions in Bombardier Service Bulletin 8-24-53\n- Complete the replacement before 31 July 1995\n\n**Why this matters:**\nThe original monitors have been failing and generating heavy smoke in the flight deck during flight, forcing pilots to take emergency action. This directive prevents potential in-flight emergencies by mandating the safety fix."}},"importantCases":[],"_links":{"self":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor","history":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor/history","analysis":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor/analysis","conflicts":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor/conflicts","importantCases":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor/important-cases","documents":"/api/acts/ad-dhc-8-36-electrical-power-battery-temperature-monitor/documents"}}