COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
AIRWORTHINESS DIRECTIVE
For the reasons set out in the background section, the CASA delegate whose signature appears below issues the following Airworthiness Directive (AD) under subregulation 39.1 (1) of CAR 1998. The AD requires that the action set out in the requirement section (being action that the delegate considers necessary to correct the unsafe condition) be taken in relation to the aircraft or aeronautical product mentioned in the applicability section: (a) in the circumstances mentioned in the requirement section; and (b) in accordance with the instructions set out in the requirement section; and (c) at the time mentioned in the compliance section.
Harbin Y12 Series Aeroplanes
AD/Y12/2 Hydraulic Pump Switch Guard 1/2003
Applicability: Y12 I or Y12 II aeroplanes.
Requirement: If not previously accomplished, install a switch guard (safety lock key) to the hydraulic pump switch in accordance with Harbin Aircraft Manufacturing Corporation Service Bulletin (SB) Y12-29-0057 dated 18 May 1995.
Note: China CAAC AD CAD95-Y012-02 Amdt 39-1414 refers.
Compliance: Before 30 April 2003.
This Airworthiness Directive becomes effective on 23 January 2003.
Background: This Directive introduces a switch guard on the hydraulic pump switch to prevent the hydraulic pump being inadvertently turned off. Turning off the hydraulic pump will prevent safe operation of the aircraft braking system.
James Coyne
Delegate of the Civil Aviation Safety Authority 22 November 2002
The above AD is notified in the Commonwealth of Australia Gazette on 18 December 2002.
Overview
The Civil Aviation Regulations 1998 (CAR 1998) were enacted by the Parliament of Australia to ensure the safety and efficiency of civil aviation within the country. The regulations were established to provide a comprehensive framework governing all aspects of civil aviation, including airworthiness standards, licensing, and operational procedures. One particular area addressed by these regulations is the issuance of Airworthiness Directives (ADs) by the Civil Aviation Safety Authority (CASA), which serve to rectify any unsafe conditions identified in aircraft or aeronautical products. This legislative instrument aims to maintain the highest standards of safety in civil aviation by mandating specific actions to address identified hazards. The AD for the Harbin Y12 Series Aeroplanes, issued under subregulation 39.1 (1) of CAR 1998, exemplifies this commitment by requiring the installation of a hydraulic pump switch guard to prevent the inadvertent shutdown of the hydraulic pump, thereby ensuring the continued safe operation of the aircraft's braking system.
Scope and Application
The Airworthiness Directive AD/Y12/2 applies specifically to the Harbin Y12 Series aeroplanes, including both the Y12 I and Y12 II variants. This legislative instrument is issued under the Civil Aviation Regulations 1998 (CAR 1998) by the Civil Aviation Safety Authority (CASA) delegate, and it mandates the installation of a switch guard to the hydraulic pump switch to prevent the inadvertent deactivation of the hydraulic pump. This requirement is critical to ensure the uninterrupted operation of the aircraft’s braking system, thereby maintaining overall safety standards. The directive is effective from 23 January 2003, with a compliance deadline set for 30 April 2003. The directive must be adhered to by all relevant entities operating these aircraft within Australia, as per the regulations set by CASA. The directive is issued under the authority of the Commonwealth of Australia and is subject to the broader framework of the CAR 1998, which may include further specifications or modifications through subordinate instruments.
Key Provisions
This Airworthiness Directive (AD) issued by the Civil Aviation Safety Authority (CASA) under the Civil Aviation Regulations 1998 (CAR) pertains specifically to the Harbin Y12 Series Aeroplanes (sections 1-3). It mandates that a switch guard, also known as a safety lock key, must be installed on the hydraulic pump switch of the Y12 I or Y12 II aeroplanes (section 4). This requirement must be carried out in accordance with Harbin Aircraft Manufacturing Corporation Service Bulletin (SB) Y12-29-0057 dated 18 May 1995. The installation must be completed before 30 April 2003 (section 6). The directive aims to prevent the inadvertent turning off of the hydraulic pump, which could lead to unsafe operation of the aircraft braking system.
The obligations imposed by this AD include ensuring that the installation of the switch guard is completed in line with the specifications provided by the Harbin Aircraft Manufacturing Corporation, as outlined in their service bulletin. Operators of the Y12 I or Y12 II aeroplanes must verify that the installation is carried out properly to maintain the airworthiness of the aircraft. This involves checking that the switch guard is correctly fitted and that the hydraulic pump switch is secured against accidental deactivation. Additionally, operators must ensure that the installation is completed before the specified compliance date, which is 30 April 2003.
Failure to comply with the requirements of this AD could result in serious safety risks, potentially leading to the grounding of the aircraft until the necessary modifications are made. While the AD does not explicitly mention specific penalties or legal consequences for non-compliance, it is clear that the Civil Aviation Safety Authority takes airworthiness directives seriously. Non-compliance could result in enforcement actions under the Civil Aviation Act 1988, which includes the possibility of fines, enforcement notices, or other regulatory actions to ensure adherence to safety standards. The severity of these consequences can vary, but they are intended to ensure that all operators comply with the AD to maintain the safety and airworthiness of the aircraft.