AD/JETSTREAM/5 - Battery Temperature Monitor Unit - Inspection

Overview

The Civil Aviation Regulations 1998, specifically Part 39 - 105 Civil Aviation Safety Authority Schedule of Airworthiness Directives, addresses issues concerning the airworthiness of aircraft in Australia. Enacted by the Australian Government, this legislation serves to ensure that civil aircraft within Australian jurisdiction meet necessary safety standards. One such directive, AD/JETSTREAM/5, pertains to the British Aerospace BAe 3100 (Jetstream) Series Aeroplanes, aiming to rectify a safety issue identified in the Battery Temperature Monitor Units. The policy objective behind these regulations is to maintain and enhance the safety of civil aviation by issuing specific directives for the correction of known safety deficiencies in aircraft. The problem this legislation was introduced to address is the potential for incorrect temperature information presented to pilots due to internal crossed electrical connections in the Battery Temperature Monitor Units of certain Jetstream Series 3100 aircraft. The directive mandates compliance with Jetstream Service Bulletin 24-A-JA 850518, requiring an inspection within 100 hours of time in service after 31 July 1985 for the specified serial numbers. This ensures that affected aircraft are maintained to a standard that prevents the risk of incorrect temperature readings, thereby safeguarding flight operations and enhancing overall aviation safety.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to all Jetstream Series 3100 aircraft with specific serial numbers as outlined in the Airworthiness Directive (AD). This legislation mandates that the Battery Temperature Monitor Unit within these aircraft must be inspected in accordance with Jetstream Service Bulletin 24-A-JA 850518. The requirement necessitates compliance within 100 hours of time in service after the issuance date of 31 July 1985, to address the identified issue of potential incorrect temperature readings due to internal electrical connections in the Battery Temperature Monitor Units. The regulation is enforceable under the Civil Aviation Safety Authority and applies nationally within the Commonwealth of Australia, ensuring consistent safety standards across all relevant aircraft operations. This legislation does not explicitly exclude any entities or industries from its scope, but it is narrowly focused on the specified Jetstream Series 3100 aircraft serial numbers. The Civil Aviation Regulations, through subordinate instruments and airworthiness directives, extend their application to ensure the safe operation of civil aircraft, with this particular directive addressing a specific safety concern identified in the mentioned Jetstream models.

Key Provisions

The Civil Aviation Regulations 1998, specifically within PART 39 - 105, mandates Airworthiness Directives (ADs) that must be followed for the safe operation of aircraft. For Jetstream Series 3100 aeroplanes, AD/JETSTREAM/5 outlines the requirement for the inspection of the Battery Temperature Monitor Unit (paragraph 7/85). This AD applies to specific serial numbers of the Jetstream Series 3100 Aircraft, namely S/N 603, 610, 611, 615, 617-620, 622, 623, 627, 629, 633, 645, 648, and 649. The directive requires compliance with Jetstream Service Bulletin 24-A-JA 850518, which must be completed within 100 hours of time in service after 31 July 1985. The obligations imposed by AD/JETSTREAM/5 include ensuring that the Battery Temperature Monitor Units are inspected and repaired if necessary, to prevent any internal crossed electrical connections that could mislead pilots regarding battery temperatures. Operators of affected Jetstream Series 3100 aircraft must meticulously adhere to the timeframe specified in the AD, ensuring that the inspection is carried out within the stipulated 100 hours of service post the AD's effective date. Failure to comply with this directive could potentially compromise the safety of the aircraft and its occupants. Failure to comply with the requirements outlined in AD/JETSTREAM/5 may result in significant consequences. Non-compliance with an Airworthiness Directive is a breach of the Civil Aviation Regulations 1998. This can lead to enforcement actions, including the possibility of the aircraft being grounded until the necessary inspections and repairs are carried out. The potential penalties for such breaches can include fines and, in severe cases, criminal charges. The exact penalties can vary depending on the specific circumstances and the severity of the non-compliance, but they are designed to ensure that all aircraft operate to the highest safety standards.