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.