{"id":"F2006B10264","name":"AD/GBK 117/5 - Electrical Bonding and Static Dischargers","slug":"ad-gbk-117-5-electrical-bonding-and-static-dischargers","collection":"legislative_instrument","jurisdiction":"commonwealth","status":"repealed","isInForce":false,"actNumber":null,"makingDate":null,"administeringDepartment":null,"currentVersion":{"id":55942,"registerId":"commonwealth-F2006B10264-current","compilationNumber":null,"startDate":"2026-04-02","status":"Repealed","reasons":null,"registeredAt":null},"sections":[{"sectionNumber":"1","sectionType":"section","heading":"AD/GBK 117/5 - Electrical Bonding and Static Dischargers","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)  Eurocopter BK 117 Series Helicopters\n\n \n\nAD/GBK 117/5 Electrical Bonding and Static Dischargers 2/94\n\nApplicability: Kawasaki Heavy Industries BK 117 series helicopters serial numbers 1001 through 1066 inclusive, except 1007 and 1036.\n\n \n\nRequirement: Action in accordance with Kawasaki Heavy Industries Service Bulletin KSB-117-077 dated 1 February 1991.\n\n \n\nNote: JCAB AD TCB-3432-91 refers.\n\n \n\nCompliance: If not previously accomplished, then prior to 3 August 1994.\n\n \n\nBackground: The JCAB has received reports of electrostatic discharge igniting fires at fuel vent line outlet ports. Compliance with this Directive will decrease the likelihood of electrostatic discharge causing a fire hazard.\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\n \n\n \n","sortOrder":0}],"analysis":{"kimi_summary":{"_metrics":{"model":"kimi-k2.5","source":"moonshot-batch","completionTokens":2331},"content_quality":"ok","complexity_score":1,"scope_assessment":{"changed":false,"description":"This is the original 1994 directive establishing a specific airworthiness requirement. It has not expanded beyond its original technical purpose of addressing electrostatic discharge hazards at fuel vent outlets."},"complexity_factors":["Single operative requirement incorporating an external technical standard by reference (manufacturer's service bulletin)","No interpretation section or defined terms","Simple applicability clause listing specific aircraft serial numbers with two explicit exclusions","No conditional logic, exceptions, or nested provisions","Extremely short length (under 200 words of substantive text)"],"plain_english_summary":"**The bottom line:** This is a mandatory safety fix ordering helicopter operators to prevent static electricity fires at fuel vents.\n\n**Who's affected:** Owners and operators of Kawasaki Heavy Industries BK 117 helicopters with serial numbers 1001 through 1066 (but excluding serials 1007 and 1036).\n\n**What you must do:** Carry out electrical bonding and static discharger modifications exactly as specified in Kawasaki Service Bulletin KSB-117-077. In plain terms, you must install or check safety equipment that lets static electricity dissipate safely without sparking.\n\n**Why it matters:** The Japanese aviation authority reported that static electricity discharges at fuel vent line outlets were igniting fires. This directive mandates the technical fix to eliminate that explosion risk.\n\n**Compliance:** The work had to be completed by 3 August 1994 unless already accomplished."}},"importantCases":[],"_links":{"self":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers","history":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers/history","analysis":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers/analysis","conflicts":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers/conflicts","importantCases":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers/important-cases","documents":"/api/acts/ad-gbk-117-5-electrical-bonding-and-static-dischargers/documents"}}