{"id":"F2006B04537","name":"AD/BELL 206/88 - Battery Relay Diode Assembly P/N 30-037-13 - Replacement","slug":"ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":114255,"registerId":"commonwealth-F2006B04537-current","compilationNumber":null,"startDate":"2026-04-03","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/BELL 206/88 - Battery Relay Diode Assembly P/N 30-037-13 - Replacement","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\nBell Helicopter Textron Canada (BHTC) 206 and Agusta Bell 206 Series Helicopters\n\n \n\n# AD/BELL 206/88 Battery Relay Diode Assembly P/N 30-037-13 - Replacement\n\nApplicability: All model Bell 206L-1 with S/Nos. 45154 to 45610. Document:  Bell Alert SB No. 206L-81-18 Rev. “A”.\n\nCompliance: Within 100 hours time in service after 30 June 1981.\n\n# 6/81\n\n \n\nBackground:  There have been several battery relay diode failures reported recently from various operators. This type of failure can and has resulted in burned wiring and smoke in the associated electrical system.\n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2170},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This directive remains precisely targeted at its original purpose: rectifying a specific electrical fire hazard on the affected helicopter models. There is no evidence of scope creep or expansion beyond the original safety intent."},"complexity_factors":["Single, unambiguous compliance action (replace one specific part)","Narrow applicability limited to a defined serial number range","No defined terms, exceptions, or conditional provisions","One external reference to a technical service bulletin for implementation details"],"plain_english_summary":"**What this is:** An Airworthiness Directive (AD) — a mandatory safety order issued by the Civil Aviation Safety Authority that requires aircraft owners to fix a specific dangerous fault.\n\n**Who it affects:** Owners and operators of Bell 206L-1 helicopters with serial numbers between 45154 and 45610.\n\n**What you must do:** Replace the Battery Relay Diode Assembly (part number 30-037-13). The technical details for the replacement are contained in Bell Helicopter Service Bulletin No. 206L-81-18 Rev. \"A\" (a manufacturer’s instruction manual).\n\n**Why it matters:** These diode assemblies have been failing in flight, causing electrical wiring to burn and producing smoke in the cockpit — a serious fire hazard.\n\n**Deadline:** The replacement must be completed within 100 hours of flight time after 30 June 1981."}},"importantCases":[],"_links":{"self":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement","history":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement/history","analysis":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement/analysis","conflicts":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement/conflicts","importantCases":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement/important-cases","documents":"/api/acts/ad-bell-206-88-battery-relay-diode-assembly-p-n-30-037-13-replacement/documents"}}