AD/GBK 117/5 - Electrical Bonding and Static Dischargers

Overview

The Civil Aviation Regulations 1998, enacted by the Australian Parliament, establish and regulate the standards and protocols necessary for ensuring the safety of civil aviation within Australia. Within this comprehensive framework, Part 39 - 105, concerning the Civil Aviation Safety Authority Schedule of Airworthiness Directives, addresses specific issues related to aircraft safety and operational standards. The directive AD/GBK 117/5, focusing on Eurocopter BK 117 Series Helicopters, was introduced to mitigate the risk of electrostatic discharge causing fires, as reported by the Japan Civil Aviation Bureau. The policy objective of this directive is to ensure that the specified Kawasaki Heavy Industries BK 117 series helicopters comply with the requirements set out in Service Bulletin KSB-117-077, dated 1 February 1991, to enhance overall flight safety and prevent potential fire hazards. This particular airworthiness directive is applicable to helicopters within the serial number range of 1001 through 1066, excluding serial numbers 1007 and 1036. Compliance with this directive is mandatory, requiring that the specified actions be completed by 3 August 1994 if not already addressed. The directive references JCAB AD TCB-3432-91 and aims to significantly reduce the likelihood of electrostatic discharge incidents, thereby protecting both aircraft and crew from potential fire risks.

Scope and Application

The Civil Aviation Regulations 1998, specifically under PART 39 - 105, encompasses the Civil Aviation Safety Authority's Schedule of Airworthiness Directives for the Eurocopter BK 117 Series Helicopters, detailing mandatory requirements to ensure safety and operational standards. This regulation applies to Kawasaki Heavy Industries BK 117 series helicopters with serial numbers ranging from 1001 to 1066, excluding serial numbers 1007 and 1036. The directive mandates compliance with Kawasaki Heavy Industries Service Bulletin KSB-117-077 dated 1 February 1991, as referenced in JCAB AD TCB-3432-91, to mitigate the risk of electrostatic discharge causing fires at fuel vent line outlet ports. The requirement must be fulfilled by 3 August 1994 if not already completed, ensuring that the affected helicopters meet the specified safety standards to operate within Australian airspace. The scope of this regulation is limited to the identified serial numbers of the specified helicopter model, and compliance is essential to maintain airworthiness and safety in civil aviation operations.

Key Provisions

The key operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate certain actions to ensure the safety of Eurocopter BK 117 series helicopters. Section AD/GBK 117/5 focuses on electrical bonding and static dischargers, requiring compliance with Kawasaki Heavy Industries Service Bulletin KSB-117-077 dated 1 February 1991. This directive applies to Kawasaki Heavy Industries BK 117 series helicopters with serial numbers ranging from 1001 to 1066, excluding 1007 and 1036. The primary objective of this legislation is to mitigate the risk of electrostatic discharge, which has been known to cause fires at fuel vent line outlet ports. Compliance with this directive is essential to prevent such hazards. The obligations imposed by this regulation are clear and specific. Operators of the affected BK 117 series helicopters must ensure that the electrical bonding and static dischargers are implemented as outlined in the Kawasaki Heavy Industries Service Bulletin KSB-117-077. This means that all necessary actions to enhance the helicopters' electrical safety must be completed in accordance with the specified bulletin. Furthermore, compliance must be achieved prior to 3 August 1994, unless the required actions have already been undertaken. The directive underscores the importance of timely adherence to safety measures to protect both the aircraft and its occupants. Failure to comply with the provisions of the Civil Aviation Regulations 1998, particularly regarding the specified airworthiness directives, can lead to significant consequences. While the exact nature of these consequences is not detailed in the provided text, it is evident that non-compliance could result in severe safety risks, including the potential for fires and other hazards. Given the stringent nature of civil aviation safety regulations, penalties for non-compliance could include fines, enforcement actions, and potential grounding of the aircraft until the required modifications are made. The exact penalties would depend on the severity of the breach and could involve both civil and criminal liabilities, depending on the jurisdiction and the specific circumstances of the violation.