COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Bombardier (Boeing Canada/De Havilland) DHC-8 Series Aeroplanes
AD/DHC-8/36 Electrical Power - Battery Temperature Monitor 2/95
Applicability: 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.
Requirement: 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.
Note: Transport Canada Aviation AD CF-94-22 dated 24 November 1994 refers.
Compliance: Prior to 31 July 1995.
Background: 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.
This Directive requires the replacement of the monitors, averting the generation of smoke in the flight compartment.
Overview
The Civil Aviation Regulations 1998, specifically Part 39 - 105, was enacted to establish the Civil Aviation Safety Authority Schedule of Airworthiness Directives, including the AD/DHC-8/36 for Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes. This legislation was introduced to address the safety gap identified by Transport Canada Aviation, which reported several incidents of battery temperature monitor failures in the specified DHC-8 series aeroplanes, leading to heavy smoke in the flight compartment and necessitating emergency action by the flight crew. The Civil Aviation Safety Authority, under the authority of the Australian Parliament, aims to ensure the safety and reliability of civil aviation through such directives, mandating the replacement of the faulty battery temperature monitors to prevent future incidents of smoke generation in the flight compartment. Compliance with this directive is required prior to 31 July 1995, as referenced in Transport Canada Aviation AD CF-94-22 dated 24 November 1994.
Scope and Application
The Civil Aviation Safety Authority (CASA) has issued Airworthiness Directive (AD) DHC-8/36 as part of the Civil Aviation Regulations 1998 to address specific safety concerns related to the Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes. This directive applies to all DHC-8 Series 102, 103, 106, 301, 311, and 314 models, specifically those with serial numbers ranging from 003 to 389 inclusive, and equipped with the Ametek/Weston battery temperature monitor part number 522487. The directive mandates the replacement of this battery temperature monitor with a modified version, part number 522487-1, as detailed in Bombardier Regional Aircraft Division de Havilland Dash 8 Service Bulletin 8-24-53 dated 7 September 1994. Compliance with this directive is required prior to 31 July 1995, following reports from Transport Canada Aviation of several incidents involving the failure of battery temperature monitors, which resulted in heavy smoke in the flight compartment necessitating emergency actions by the flight crew. This replacement aims to prevent such incidents, ensuring the continued airworthiness and safety of the affected aircraft.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, details an Airworthiness Directive (AD) concerning Bombardier (Boeing Canada/De Havilland) DHC-8 Series aeroplanes. AD/DHC-8/36, effective from February 1995, addresses an issue with the electrical power system, specifically the battery temperature monitor in certain DHC-8 models. The directive applies to DHC-8 Series 102, 103, 106, 301, 311, and 314 aeroplanes, serial numbers 003 through 389 inclusive, equipped with the Ametek/Weston battery temperature monitor part number (P/N) 522487 (section 1). The requirement is to replace the existing battery temperature monitor P/N 522487 with a modified version P/N 522487-1, following Bombardier Regional Aircraft Division de Havilland Dash 8 Service Bulletin 8-24-53 dated 7 September 1994. This action is necessary to mitigate incidents where the monitor's failure resulted in heavy smoke in the flight compartment, necessitating emergency measures by the flight crew.
The obligations imposed by the AD/DHC-8/36 are clear and precise. Operators of the specified DHC-8 models must ensure that the battery temperature monitor P/N 522487 is replaced with the modified version P/N 522487-1. This replacement must be carried out in accordance with Bombardier's service bulletin 8-24-53, dated 7 September 1994. The directive mandates that compliance must be achieved before 31 July 1995. Failure to adhere to this directive could compromise the safety of the aircraft, particularly in terms of electrical system integrity and crew safety during flight.
Non-compliance with AD/DHC-8/36 can lead to serious consequences, both civil and criminal. The Civil Aviation Safety Authority (CASA) has the authority to enforce the directive, and failure to comply can result in enforcement actions. Civil penalties for non-compliance may include fines, and in severe cases, the grounding of the non-compliant aircraft. Criminally, depending on the severity of the breach and the resulting impact on safety, individuals or companies could face prosecution. The maximum penalties are not explicitly stated in the directive but generally align with the broader provisions of the Civil Aviation Regulations 1998, which could include substantial fines and imprisonment for serious breaches that endanger flight safety.