AD/MU-2/53 Amdt 1 - Ice Detector System Installation

Overview

The Civil Aviation Regulations 1998, specifically under Part 39 – 105, is the legislation that governs the Airworthiness Directives for ensuring the safety of civil aviation within Australia. This regulation was enacted to address safety concerns and to set mandatory standards for aircraft maintenance and operation, aiming to prevent incidents such as loss of control due to undetected ice accretion. The Civil Aviation Safety Authority (CASA), operating under the authority of the Australian Parliament, established these regulations to ensure compliance with international safety standards and to protect the public from aviation-related hazards. The policy objective behind this particular Airworthiness Directive (AD/MU-2/53) is to mandate the installation of an ice detector system in specified Mitsubishi MU-2 series aeroplanes to prevent loss of control due to undetected ice build-up, thereby enhancing flight safety. The Airworthiness Directive AD/MU-2/53, issued in 1995, specifically targets the installation of an ice detector system in certain Mitsubishi MU-2 series aeroplanes to address the risk of loss of control from undetected ice accretion. The directive applies to specific serial numbers of the MU-2B series, requiring these aircraft to be equipped with an ice detector system as per the relevant service bulletins. Until compliance with this requirement is achieved, a placard warning against flying into known or forecast icing conditions must be installed in the aircraft. This interim measure ensures that pilots are aware of the risks and take appropriate action to avoid dangerous flight conditions. The directive underscores CASA's commitment to maintaining the highest safety standards in civil aviation.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 105, applies to certain Mitsubishi MU-2 Series Aeroplanes, with the aim of ensuring airworthiness through the implementation of specific airworthiness directives. The particular directive AD/MU-2/53 Amendment 1 mandates the installation of an Ice Detector System for specified serial numbers of MU-2B-25/-26/-26A/-40, MU-2B-35/-36/-36A/-60, MU-2B-10/-15/-20/-25/-26, and MU-2B-30/-35/-36 aircraft. The requirement is to install the ice detector system in accordance with MU-2 Service Bulletin No 080/30-003A or No 217A, depending on the aircraft's serial number, and until the installation is complete, a placard must be installed in clear view of the pilot stating "FLIGHT INTO KNOWN OR FORECAST ICING CONDITIONS IS PROHIBITED." Additionally, a "P" amendment must be inserted into the Limitations Section of the Flight Manual, with the amendment available from District Airworthiness Offices. The directive applies nationally, ensuring compliance with civil aviation safety standards across the Commonwealth of Australia. The directive does not explicitly state exclusions or exemptions, but compliance must be achieved by the specified dates for the affected aircraft.

Key Provisions

The Civil Aviation Regulations 1998, specifically Part 39 - 105, under the Civil Aviation Safety Authority (CASA) schedule of Airworthiness Directives, mandates the installation of an Ice Detector System on certain Mitsubishi MU-2 Series Aeroplanes to ensure flight safety. The regulation applies to specific serial numbers of MU-2B-25/-26/-26A/-40, MU-2B-35/-36/-36A/-60, MU-2B-10/-15/-20/-25/-26, and MU-2B-30/-35/-36 models (Sections 1 and 2). This directive requires the installation of the Ice Detector System in accordance with the relevant Service Bulletins (SB No 080/30-003A or SB No 217A, as applicable) and mandates the installation of a placard stating "FLIGHT INTO KNOWN OR FORECAST ICING CONDITIONS IS PROHIBITED" until the system is installed. Additionally, a "P" amendment must be inserted into the Limitations Section of the Flight Manual (Section 3). The obligations imposed by this Act on the parties it governs are to ensure that the installation of the Ice Detector System is carried out as per the specified Service Bulletins and the insertion of the required placard and Flight Manual amendment. Owners and operators of the affected aircraft must comply with these requirements within the stipulated timeframe, which is before 31 December 1995, or prior compliance with the initial issue of this AD for the Flight Manual amendment (Sections 4 and 5). Failure to adhere to these requirements can result in significant safety risks, particularly the inability to detect and manage ice accretion, which could lead to loss of control of the aircraft. In terms of breaches and penalties, while the Civil Aviation Regulations 1998 do not explicitly detail specific offences or penalties for non-compliance with Airworthiness Directives in this legislative instrument, non-compliance with CASA directives generally can result in severe consequences. These include enforcement actions by CASA, which may include grounding the aircraft, fines, and potential criminal charges for individuals or corporations found in breach of the regulations. The severity of the penalties can depend on the nature and extent of the non-compliance, but they are designed to ensure strict adherence to safety standards to protect the public and maintain the integrity of civil aviation operations.