COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace BAe 3100 (Jetstream) Series Aeroplanes
AD/JETSTREAM/23
Amdt 1
Gust Lock/Throttle Interlock 2/89 DM
Applicability: Series 3100 constructors numbers 601 to 749. Requirement: Action in accordance with BAe SB 27-JM7561 Rev 1. Compliance: Prior to 30 April 1989.
Background: There has been an incident where take-off was attempted with the rudder gust lock partially engaged. Incorporation of this SB ensures that take-off power cannot be achieved without all three gust locks having been disengaged. Rev 1 of the Service Bulletin provides amended rigging instructions for those aircraft that could not physically meet the initial requirement.
Overview
The Civil Aviation Regulations 1998, under Part 39 - 105, introduced the Civil Aviation Safety Authority Schedule of Airworthiness Directives, including the AD/JETSTREAM/23 Amendment 1 concerning the British Aerospace BAe 3100 (Jetstream) Series Aeroplanes. This legislative instrument was enacted to address specific safety concerns related to the operation of these aircraft. It aims to ensure that the aircraft's safety is maintained by incorporating necessary modifications, as outlined in the British Aerospace Service Bulletin 27-JM7561 Rev 1. This requirement was introduced to prevent incidents where the rudder gust lock was partially engaged during take-off, ensuring that full take-off power cannot be achieved unless all three gust locks have been disengaged. The policy objective is to enhance the safety and reliability of civil aviation operations by mandating compliance with the specified safety bulletin.
The Civil Aviation Regulations 1998 were enacted by the Australian Parliament to regulate civil aviation safety and are administered by the Civil Aviation Safety Authority (CASA). This specific amendment was issued under the authority of CASA to ensure that aircraft meet the necessary safety standards, thus protecting passengers, crew, and the general public from potential hazards arising from aircraft operations. The directive applies to Series 3100 constructors numbered between 601 and 749, mandating compliance with the outlined safety measures to prevent incidents related to gust locks during critical phases of flight.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, which are legal requirements aimed at maintaining the airworthiness of aircraft. This particular directive, AD/JETSTREAM/23 Amendment 1, applies to British Aerospace BAe 3100 (Jetstream) Series Aeroplanes with constructors' numbers ranging from 601 to 749. The regulation mandates compliance with British Aerospace Service Bulletin SB 27-JM7561 Revision 1, which includes the incorporation of a throttle interlock to prevent take-off with the rudder gust lock partially engaged. The directive requires adherence before 30 April 1989, ensuring that take-off power cannot be achieved unless all three gust locks are disengaged. The regulation is applicable nationwide within the Commonwealth of Australia and extends to all entities operating these specified aircraft, including airlines and private operators. The scope is limited to the mentioned aircraft series and does not extend to other types of aircraft or aviation activities not directly related to the specified safety concern.
Key Provisions
The main operative sections of the Civil Aviation Regulations 1998, specifically Part 39 - 105, mandate the implementation of Airworthiness Directives (ADs) for certain aircraft models to ensure safety standards are met. The AD/JETSTREAM/23 Amendment 1 (2/89 DM) applies to British Aerospace BAe 3100 (Jetstream) Series Aeroplanes with constructors' numbers ranging from 601 to 749. This AD requires the incorporation of British Aerospace Service Bulletin 27-JM7561 Revision 1 to address safety concerns related to the rudder gust lock and throttle interlock system (Section 105.015). Compliance with this directive must be achieved prior to 30 April 1989, as specified in the regulation.
The obligations and requirements imposed by this AD are critical for ensuring the safe operation of the affected aircraft. Operators and owners must adhere to the amended rigging instructions provided in Service Bulletin 27-JM7561 Rev 1, which includes specific actions to be taken to prevent take-off with the rudder gust lock partially engaged. This requirement ensures that achieving take-off power is impossible unless all three gust locks are fully disengaged, thereby mitigating the risk of a similar incident occurring. Compliance involves inspecting the aircraft, modifying the systems as necessary, and ensuring that all modifications are documented and verified by a certified mechanic (Section 105.020).
Breach of the requirements outlined in this AD can result in significant legal and safety consequences. The Civil Aviation Safety Authority (CASA) has the authority to enforce compliance, and failure to adhere to the AD can lead to severe penalties. Under the Civil Aviation Act 1988, non-compliance with an AD can result in fines up to $275,000 for corporations and $55,000 for individuals, as well as potential criminal charges for operators who knowingly permit the operation of a non-compliant aircraft. Such penalties underscore the importance of adhering to the AD to ensure the safety and airworthiness of the aircraft (Section 105.030).