AD/RAD/22 - Press-to-Talk Assembly - Modification

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Legislation au F2006B06486 Not in force Legislative Instrument

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COMMONWEALTH OF AUSTRALIA (Civil Aviation Regulations 1998), PART 39 - 107 CIVIL AVIATION SAFETY AUTHORITY

SCHEDULE OF AIRWORTHINESS DIRECTIVES

 


Radio Communication and Navigation Equipment

 

AD/RAD/22 Press-to-Talk Assembly - Modification 2/71

Applicability: Aerosound 555-900 Press-to-Talk Assembly.

 

Requirement: Modify the Press-to-Talk Assembly to ensure that a transmitter will not remain energised after the Press-to-Talk button is released.

 

Note: Incorporation of Air Communications Pty. Ltd. modification specification. AC- M-1004 is an acceptable means of compliance.

 

Compliance: Before 1 April 1971.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Overview

The Civil Aviation Regulations 1998, enacted by the Commonwealth of Australia, establish comprehensive regulations to ensure the safety and efficiency of civil aviation within Australia. Specifically, Part 39 of these regulations, which pertains to the Civil Aviation Safety Authority's Schedule of Airworthiness Directives, addresses the maintenance and modification of radio communication and navigation equipment. One such directive, AD/RAD/22, mandates the modification of the Aerosound 555-900 Press-to-Talk Assembly to prevent the transmitter from remaining energised after the button is released. This directive aims to enhance the safety of aircraft communications by ensuring that the equipment complies with specified standards, thereby reducing the risk of unintended transmissions and improving overall aviation safety. The policy objective underpinning this directive is to maintain the highest safety standards for radio communication equipment in civil aviation, ensuring that all modifications and maintenance activities conform to stringent regulatory requirements. The directive is issued by the Civil Aviation Safety Authority, reflecting its commitment to overseeing and enforcing aviation safety regulations to protect the public and maintain the integrity of the national airspace. Compliance with these regulations is mandatory, with a specified deadline for ensuring the modifications are implemented.

Scope and Application

The Civil Aviation Regulations 1998, specifically Part 39 - 107, under the Civil Aviation Safety Authority, pertains to the airworthiness directives concerning radio communication and navigation equipment, with a particular focus on the Aerosound 555-900 Press-to-Talk Assembly. This regulation applies to the modification of the Press-to-Talk Assembly to ensure that a transmitter does not remain energised after the button is released. The requirement mandates the incorporation of Air Communications Pty. Ltd. modification specification AC-M-1004 as an acceptable means of compliance. This directive applies to all aircraft and relevant equipment that fall under the jurisdiction of the Commonwealth of Australia, ensuring that the safety standards are uniformly upheld across the country. Compliance with this directive must be achieved before 1 April 1971, indicating a clear timeline for the modifications to be implemented. Any failure to comply with these airworthiness directives may result in the aircraft being deemed non-compliant with Australian aviation safety standards.

Key Provisions

The Civil Aviation Regulations 1998, specifically within PART 39 - 107, include the Civil Aviation Safety Authority (CASA) Schedule of Airworthiness Directives (AD/RAD/22) which addresses modifications to radio communication and navigation equipment. This directive (AD/RAD/22) pertains to the Aerosound 555-900 Press-to-Talk Assembly (section 2/71). It mandates that the Press-to-Talk Assembly must be modified to prevent the transmitter from remaining energised once the Press-to-Talk button is released. Compliance with the Air Communications Pty. Ltd. modification specification AC-M-1004 is recognised as an acceptable means of fulfilling this requirement. Entities governed by these regulations must ensure that the specified modification to the Press-to-Talk Assembly is completed in accordance with the outlined requirements. This involves inspecting the assembly and making any necessary modifications to guarantee that the transmitter will not stay active after the button is released. By adhering to the CASA Schedule of Airworthiness Directives, entities maintain the safety and operational standards mandated by the Civil Aviation Regulations 1998. Failure to comply with the directives stipulated in AD/RAD/22 could result in various consequences. Although the specific penalties are not detailed within the provided text, non-compliance with Civil Aviation Regulations typically incurs civil and criminal penalties. The Civil Aviation Act 1988 provides for penalties that can include fines and imprisonment, reflecting the seriousness of non-compliance with aviation safety directives. Ensuring adherence to these regulations is crucial for maintaining the safety and integrity of civil aviation operations.

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Aviation Law
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Sourced from the Federal Register of Legislation at 26 August 2026. For the latest information on Australian Government law please go to https://www.legislation.gov.au.