COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 105 CIVIL AVIATION SAFETY AUTHORITY
SCHEDULE OF AIRWORTHINESS DIRECTIVES
Mitsubishi MU-2 Series Aeroplanes
AD/MU-2/39 Fitment of Manual Ignition Switches 4/87
Applicability: Models MU-2B -10, -15, -20, -25, -26, -26A, -30 -35, -36, -36A, -40 and -60.
Requirement: Embody manual ignition switches in accordance with;
For Mitsubishi Heavy Industries Ltd aircraft - MHI SR 066B dated 13 November 1986, and For Mitsubishi Aircraft International Inc. aircraft - MAI SR 040/74-001 Revision A dated 11 December 1986.
Note 1. FAA AD 86-26-02 Amdt 39-5498 refers.
Note 2. An Australian Flight Manual amendment is required for all applicable aircraft fitted with manual ignition switches.
Compliance: Unless already accomplished. Prior to operations after 30 June 1987.
Background: This Directive provides a continuous ignition selection capability to prevent engine flameouts when operating in, or departing from, an icing environment and to rapidly restore power subsequent to an ice induced flameout.
Overview
The Civil Aviation Regulations 1998, amended by the legislative instrument F2006B11369, address the problem of engine flameouts in Mitsubishi MU-2 Series aeroplanes during operations in or departing from icing environments. Enacted by the Australian Parliament, this regulation was introduced to enhance aviation safety by ensuring that the aircraft are equipped with manual ignition switches that prevent flameouts and facilitate rapid power restoration. The policy objective is to mitigate the risk of engine failure due to ice accumulation, thereby maintaining the airworthiness of the aircraft in adverse weather conditions. Compliance with these airworthiness directives is mandatory for models MU-2B -10, -15, -20, -25, -26, -26A, -30 -35, -36, -36A, -40 and -60, and must be completed prior to operations after 30 June 1987. The requirement aligns with industry standards set by Mitsubishi Heavy Industries Ltd and Mitsubishi Aircraft International Inc., as outlined in MHI SR 066B and MAI SR 040/74-001 Revision A respectively.
Scope and Application
The Civil Aviation Regulations 1998, particularly Part 39 - 105, mandates specific airworthiness directives for certain aircraft, including the Mitsubishi MU-2 Series Aeroplanes. This directive applies to a range of MU-2 models, specifically MU-2B -10, -15, -20, -25, -26, -26A, -30 -35, -36, -36A, -40 and -60. The requirement outlined in AD/MU-2/39 pertains to the fitment of manual ignition switches, which must comply with Mitsubishi Heavy Industries Ltd specifications for their aircraft or Mitsubishi Aircraft International Inc. specifications for their aircraft. This directive is applicable across the Commonwealth of Australia and is overseen by the Civil Aviation Safety Authority. Compliance with this directive is mandatory unless the required modifications have already been completed, with a compliance deadline set for operations after 30 June 1987. Additionally, the directive notes the need for an Australian Flight Manual amendment for all applicable aircraft that are fitted with manual ignition switches. The directive aims to ensure continuous ignition selection capability to prevent engine flameouts in icing conditions and to facilitate rapid power restoration after an ice-induced flameout.
Key Provisions
The Civil Aviation Regulations 1998, specifically Part 39 - 105, includes the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives (AD/MU-2/39), which mandates the fitment of manual ignition switches on Mitsubishi MU-2 series aeroplanes. This directive applies to models MU-2B -10, -15, -20, -25, -26, -26A, -30 -35, -36, -36A, -40 and -60 (section 1). The requirement is to embody manual ignition switches according to specified standards: Mitsubishi Heavy Industries Ltd aircraft must comply with MHI SR 066B dated 13 November 1986, while Mitsubishi Aircraft International Inc. aircraft must adhere to MAI SR 040/74-001 Revision A dated 11 December 1986 (section 2). Compliance with these standards ensures a continuous ignition selection capability, preventing engine flameouts in icing conditions and facilitating rapid power restoration after an ice-induced flameout. The directive also references FAA AD 86-26-02 Amdt 39-5498 and requires an Australian Flight Manual amendment for all applicable aircraft fitted with manual ignition switches (section 3).
The obligations imposed by this regulation are clear: operators of the specified Mitsubishi MU-2 series aeroplanes must ensure that the fitment of manual ignition switches is carried out as per the outlined standards. This involves obtaining and installing the appropriate switches in compliance with the MHI or MAI service requirements (section 2). Additionally, operators must ensure that an Australian Flight Manual amendment is completed for all applicable aircraft. These changes are mandatory unless they have already been implemented, and they must be completed prior to any operations after 30 June 1987 (section 4).
Failure to comply with the requirements of this Airworthiness Directive may lead to various consequences. Firstly, non-compliance could result in operational risks, particularly in icing conditions where the absence of proper manual ignition switches could lead to engine flameouts. Such risks not only endanger the flight but also violate the safety standards set by CASA. Furthermore, there may be civil or criminal penalties for non-compliance, although the specific penalties are not detailed in the legislative instrument. However, the broader regulatory framework under which these regulations operate may impose fines or other legal consequences for violations of aviation safety directives. Therefore, it is imperative for operators to adhere to the specified requirements to avoid potential legal and safety issues.