{"id":"F2006B05248","name":"AD/CESSNA 206/43 Amdt 1 - Battery Vent System","slug":"ad-cessna-206-43-amdt-1-battery-vent-system","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":45567,"registerId":"commonwealth-F2006B05248-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/CESSNA 206/43 Amdt 1 - Battery Vent System","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 206 Series Aeroplanes\n\nAD/CESSNA 206/43\n\nAmdt 1\n\n  \nBattery Vent System 8/86\n\nApplicability: All Cessna Model U206G and TU206G aeroplanes with SCL Turbine PAC power plant converted in accordance with STC SA2353 NM.\n\nRequirement: 1. Inspect the battery vent system for kinks or other blockages. Clear the vent system as necessary to provide adequate battery venting.\n\n2. Modify the battery vent system according to the requirements of Soloy Conversions Ltd S.B. 06-763.\n\nCompliance: For Para 1: Within 5 hours time in service after 21 January 1986. For Para 2: Within 25 hours time in service after 21 January 1986.\n\nNote: The inspection detailed in Para 1 may be accomplished by the pilot-in- command, in which case the precise AD reference shall be entered in a certification made on the Maintenance Release coincident with that for the daily inspection.\n\nBackground: 1. To prevent battery explosion resulting from ignition of battery vent gases.\n\n2. This Directive is amended to correct the STC reference.","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":1546},"content_quality":"ok","complexity_score":2,"scope_assessment":{"changed":false,"description":"This amendment is purely corrective, updating only the STC reference number in the applicability section. It does not expand or alter the substantive safety requirements, affected aircraft population, or technical mandates established in the original directive."},"complexity_factors":["Limited applicability requiring specific aircraft model (U206G/TU206G) and specific conversion kit identification (STC SA2353 NM)","Two distinct compliance deadlines (5 hours vs 25 hours time in service)","Reference to external technical document (Soloy Conversions Ltd S.B. 06-763) requiring specialist engineering knowledge to interpret","Specific administrative requirement for pilot-performed inspections regarding Maintenance Release entries"],"plain_english_summary":"This directive requires owners/operators of Cessna 206s converted to turbine power under STC SA2353NM to inspect the battery ventilation for kinks or blockages and clear any obstructions within 5 flight hours of 21 Jan 1986, and to modify the vent system per Soloy Conversions Service Bulletin 06-763 within 25 flight hours. The pilot-in-command may perform and log the initial inspection; the vent modification follows the SB and will typically require licensed maintenance. It prevents hydrogen buildup and the risk of battery explosion."}},"importantCases":[],"_links":{"self":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system","history":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system/history","analysis":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system/analysis","conflicts":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system/conflicts","importantCases":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system/important-cases","documents":"/api/acts/ad-cessna-206-43-amdt-1-battery-vent-system/documents"}}