COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes
AD/HS 748/2 Aileron Cable Support Block 12/94
Applicability: Model HS748 aircraft prior to constructors number 1760, except constructors numbers 1723 through 1727.
Requirement: Action in accordance with Jetstream Aircraft Service Bulletin HS748-27-63 Rev 2.
Note: UK CAA AD 008-05-94 refers.
Compliance: Prior to 1 May 1995.
Background: The UK CAA requires the incorporation of Modification No 4602, which installs a support block to the pressure skin below the aileron cable loop under the crew compartment floor. This action is required to eliminate the possibility of the aileron cable fouling under certain aileron control wheel loading conditions.
Overview
The Civil Aviation Regulations 1998, enacted by the Australian Government, serve to regulate civil aviation operations within Australia. Among the various sections, Part 39, specifically Airworthiness Directives, addresses the safety and compliance requirements for aircraft, ensuring that all aircraft meet certain safety standards before being permitted to operate. One such directive, AD/HS 748/2, pertains to the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes, aiming to rectify an identified safety concern with the aileron cable support block. This directive was introduced to address the risk of aileron cable fouling, which could potentially compromise flight safety. The policy objective is to mandate compliance with specific maintenance actions to mitigate identified risks, ensuring the continued airworthiness and safety of the aircraft in question.
Scope and Application
The Civil Aviation Regulations 1998, specifically Part 39 - 105, pertains to the application of Airworthiness Directives issued by the Civil Aviation Safety Authority (CASA) for particular aircraft models, including the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. This regulation applies to HS 748 aircraft models prior to constructors number 1760, with an exclusion for those numbered 1723 through 1727. The directive mandates that these aircraft must comply with action requirements detailed in Jetstream Aircraft Service Bulletin HS748-27-63 Rev 2, which includes the installation of a support block to the pressure skin beneath the aileron cable loop under the crew compartment floor to prevent potential fouling under certain aileron control wheel loading conditions. Compliance with this directive must be achieved prior to 1 May 1995, aligning with the requirements set by the UK Civil Aviation Authority (CAA) through AD 008-05-94. This regulatory framework is designed to ensure the ongoing airworthiness of specified HS 748 aircraft models operating within the Australian jurisdiction, and its implementation is overseen by CASA.
Key Provisions
The Civil Aviation Regulations 1998 (Cth), specifically in Part 39, Section 105, outline the Airworthiness Directives (AD) for the British Aerospace (Hawker Siddeley) HS 748 Series Aeroplanes. This particular directive, AD/HS 748/2, focuses on the installation of an aileron cable support block (Section 12/94). This directive applies to all model HS748 aircraft prior to constructors number 1760, with the exception of constructors numbers 1723 through 1727. The directive mandates that these aircraft must be modified in accordance with Jetstream Aircraft Service Bulletin HS748-27-63 Rev 2. Additionally, it references the UK Civil Aviation Authority (CAA) AD 008-05-94. Compliance with this directive is required prior to 1 May 1995.
The obligations imposed by this directive require aircraft owners and operators to ensure that the specified modifications are carried out on their HS748 aircraft to meet the safety standards set forth by the Civil Aviation Safety Authority (CASA). This includes installing a support block to the pressure skin below the aileron cable loop under the crew compartment floor, as specified in the Jetstream Aircraft Service Bulletin. The purpose of this modification is to prevent the aileron cable from fouling under certain aileron control wheel loading conditions, which could potentially lead to safety issues during flight.
Failure to comply with the requirements outlined in AD/HS 748/2 may result in civil or criminal consequences. The Civil Aviation Act 1988 (Cth) provides for various penalties for non-compliance with airworthiness directives. Depending on the severity of the non-compliance, penalties can include fines, imprisonment, or both. For instance, under Section 46 of the Act, an individual may face a fine of up to $210,000 or imprisonment for up to five years, or both, for serious breaches. Corporate entities may face even higher fines, up to $1,050,000, for similar violations. These penalties underscore the importance of adhering to the directive to ensure the safety of all air operations involving the specified aircraft.