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 revokes Airworthiness Directive (AD) AD/MU-2/60 and issues the following 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.
Mitsubishi MU-2 Series Aeroplanes
AD/MU-2/60
Amdt 1
De-Ice System Modification 12/2002
Applicability: Mitsubishi MU-2B, MU-2B-10, -15, -20, -25, -26 S/N 008 to 347 inclusive, except
S/N 313 and 321.
Mitsubishi MU-2B-30, -35, -36 S/N 501 to 696 inclusive, except S/N 652 and 661.
Requirement: Modify the Pneumatic De-Ice system Monitoring System and revise the flight manual in accordance with Mitsubishi Heavy Industries (MHI) MU-2 Service Bulletin 232 Revision A.
Note 1: JCAB AD TCD-4626-97 refers.
Compliance: Unless previously accomplished; within 6 months from the effective date of this Directive.
Note 2: Aircraft in compliance with Service Bulletin 232 require no further action.
This Airworthiness Directive becomes effective on 28 November 2002.
Background: This Directive is mandated to ensure that the flight crew is advised of proper functioning of the de- ice system. The system informs the flight crew that the wing and tail pneumatic de- ice boot systems are receiving pressure when the WING DE- ICER switch is selected ON.
This amendment includes changes to the manufacturers service bulletin. This change clarifies the parts requirements for the installation of the de- icer system.
The original issue of this Directive became effective 6 November 1997.
Barry James Reid McKay
Delegate of the Civil Aviation Safety Authority 18 October 2002
The above AD is notified in the Commonwealth of Australia Gazette on 6 November 2002.
Overview
The Civil Aviation Regulations 1998, amended by the Airworthiness Directive AD/MU-2/60 Amendment 1, was introduced to address safety concerns regarding the de-icing systems of Mitsubishi MU-2 series aeroplanes. This Airworthiness Directive, issued by the Civil Aviation Safety Authority (CASA) under the authority of the Civil Aviation Act 1988, mandates specific modifications to the Pneumatic De-Ice system Monitoring System and flight manual updates for certain Mitsubishi MU-2 aircraft. The primary objective of this directive is to ensure that the flight crew is adequately informed about the operational status of the de-icing system, enhancing flight safety. This directive became effective on 28 November 2002, and aircraft owners or operators were required to implement the specified modifications within six months of this date.
Scope and Application
The Civil Aviation Regulations 1998, under Part 39, specifically mandate Airworthiness Directives (AD) issued by the Civil Aviation Safety Authority (CASA) to ensure the safety of aircraft operations within Australia. These directives apply to particular aircraft models and serial numbers, in this case, the Mitsubishi MU-2 Series Aeroplanes, including specific models and serial numbers except for those explicitly excluded. The AD requires specific modifications to the Pneumatic De-Ice system Monitoring System and corresponding revisions to the flight manual to ensure the safe operation of the aircraft. Compliance with these directives is mandatory, with the requirement to complete modifications within six months from the effective date of the directive. These directives are enforceable across the Commonwealth and apply to all relevant aircraft operators and maintenance entities within Australia, ensuring uniform safety standards across the aviation industry. Exemptions or exclusions are specifically outlined in the AD, and compliance with service bulletins may exempt certain aircraft from further actions. The scope of these regulations is further defined and potentially extended through subordinate instruments as necessary to maintain aviation safety standards.
Key Provisions
The Airworthiness Directive (AD) AD/MU-2/60 Amendment 1, issued under subregulation 39.1(1) of the Civil Aviation Regulations 1998, mandates specific modifications to the de-ice system of Mitsubishi MU-2 series aeroplanes. Specifically, this AD applies to Mitsubishi MU-2B, MU-2B-10, -15, -20, -25, -26 with serial numbers (S/N) ranging from 008 to 347, excluding S/N 313 and 321, and to MU-2B-30, -35, -36 with S/N from 501 to 696, excluding S/N 652 and 661. The requirement of this AD is to modify the Pneumatic De-Ice System Monitoring System and revise the flight manual in accordance with Mitsubishi Heavy Industries (MHI) MU-2 Service Bulletin 232 Revision A. This modification is essential to ensure that the flight crew is properly informed about the proper functioning of the de-ice system, specifically when the WING DE-ICER switch is selected ON.
The AD imposes certain obligations on the parties governed by it. Primarily, it requires the aircraft owners or operators to implement the specified modifications to the de-ice system and update the flight manual as per the MHI MU-2 Service Bulletin 232 Revision A. Aircraft that have already complied with Service Bulletin 232 do not need to take any further action. The compliance period for these modifications is within six months from the effective date of this Directive, which is 28 November 2002. The directive mandates these changes to ensure the safety and proper functionality of the de-ice system, thereby mitigating potential hazards during flight operations.
Failure to comply with the provisions of this AD can result in significant consequences. Although specific penalties are not detailed within the AD itself, non-compliance with Civil Aviation Regulations 1998 may lead to enforcement actions by the Civil Aviation Safety Authority (CASA). Such actions may include fines, suspension or revocation of airworthiness certificates, and other regulatory penalties. These measures are designed to enforce adherence to the safety standards and ensure the continued airworthiness of the affected aircraft. The overarching aim is to maintain the highest safety standards in civil aviation, protecting both the aircraft and its occupants.