AD/JETSTREAM/50 - Powerplant - Revised Power Lever To Manual Fuel Valve

Overview

The Civil Aviation Regulations 1998, as amended by the Legislative Instrument F2006B10920, address the specific safety concerns associated with the British Aerospace BAe 3100 (Jetstream) Series Aeroplanes. Enacted by the Commonwealth of Australia, this legislation was introduced to ensure that all Jetstream 3100 and 3200 aircraft, up to and including construction number 928, adhere to stringent safety standards to prevent incidents where the power lever becomes detached from the manual fuel valve. This problem, which has previously led to emergency procedures being necessary, is addressed by mandating compliance with the technical requirements outlined in the British Aerospace Service Bulletin, CAA (UK) mandatory, 71-JM 7755. The objective of this legislation is to enhance aviation safety by ensuring that all applicable aircraft are modified in accordance with the specified technical directives before 31 March 1992. The enactment of this regulation by the Civil Aviation Safety Authority under the authority of the Civil Aviation Act 1988 aims to eliminate the risk of power lever detachment, thereby preventing potential in-flight emergencies and ensuring the safe operation of Jetstream aircraft. This legislative measure underscores the commitment to maintaining high safety standards in the aviation industry, reflecting a proactive approach to addressing identified hazards and mitigating risks associated with aircraft operations.

Scope and Application

The Civil Aviation Regulations 1998, as amended, apply to all Jetstream 3100 and 3200 aircraft with construction numbers up to and including 928, mandating adherence to specific airworthiness directives outlined in the schedule. This regulation is issued under the authority of the Civil Aviation Safety Authority (CASA) and pertains to the maintenance and operational standards of these aircraft. It is imperative for aircraft owners, operators, and maintenance personnel to comply with the technical requirements set forth in British Aerospace Service Bulletin CAA (UK) mandatory, 71-JM 7755, to rectify the issue of the power lever becoming detached from the manual fuel valve. This action is mandated to be completed prior to 31 March 1992, as the detachment has led to emergency situations where control over the engine power was lost. The regulation does not explicitly state exclusions, but compliance is mandatory for the specified aircraft to ensure safety and regulatory adherence within the Commonwealth of Australia.

Key Provisions

The Civil Aviation Regulations 1998, specifically under Part 39, Section 105, address the safety of aircraft operations by issuing Airworthiness Directives (AD). These directives aim to ensure the safety of aircraft in service by requiring specific actions to be taken by aircraft operators. In this case, AD/JETSTREAM/50 pertains to British Aerospace BAe 3100 (Jetstream) Series Aeroplanes, with a focus on a critical safety issue involving the power lever and manual fuel valve. Section 105 mandates that all Jetstream 3100 and 3200 Aircraft with construction numbers up to and including 928 must comply with the technical requirements outlined in British Aerospace Service Bulletin, CAA (UK) mandatory, 71-JM 7755. This directive requires action to be taken before 31 March 1992. The directive's primary objective is to address a recurring issue where the power lever has become detached from the manual fuel valve on the engine, leading to a loss of power control. This situation necessitates immediate emergency procedures by the aircrew, underscoring the importance of compliance to prevent such incidents. Aircraft operators governed by this directive are required to implement the specified technical changes to the power lever and manual fuel valve systems. This involves adhering to the detailed technical requirements set out in the referenced service bulletin. Compliance involves ensuring that the modifications are completed by the specified date, with proper documentation and certification to demonstrate adherence to the directive. Operators must also maintain records of all actions taken to comply with this directive, ensuring that all aircraft within the specified range are updated and compliant by the deadline. Failure to comply with the requirements of AD/JETSTREAM/50 may result in significant consequences. The Civil Aviation Safety Authority (CASA) may take enforcement action against non-compliant aircraft operators, which could include fines, suspension of operations, or other regulatory penalties. In severe cases, non-compliance could lead to the grounding of affected aircraft until the required modifications are completed and verified. The safety of all passengers and crew is paramount, and CASA enforces these directives rigorously to maintain the highest safety standards in civil aviation.