Commonwealth legislation

AD/RAD/49 - Collins TPR-720 ATC Radar Beacon System/Mode S Transponders

In ForceCTH

Jurisdiction

Commonwealth

Collection

legislative instrument

Plain English Summary

4/10 complexity

This airworthiness directive requires operators of Collins TPR‑720 Mode S transponders (part numbers 622‑7878‑020 and 622‑7878‑120) to modify either the transponder software per Collins Service Bulletin 8 (TPR‑720‑34‑08) or the hardware per Service Bulletin C (TPR‑720‑34‑C). The modification must be completed before further flight in United States airspace after 12 calendar months from the directive’s effective date to prevent reported loss of radar tracking; operators bear the cost and choose the method.

JSON API

Deep dive

Want the full deep dive?

Zoe can write the in-depth analysis on top of the summary above: how it works, who it affects and what each part actually does.

Current sections

Direct links to the current provisions in AD/RAD/49 - Collins TPR-720 ATC Radar Beacon System/Mode S Transponders.

AD/RAD/49 - Collins TPR-720 ATC Radar Beacon System/Mode S Transponders

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

SCHEDULE OF AIRWORTHINESS DIRECTIVES

View image in the official source
Radio Communication and Navigation Equipment

AD/RAD/49 Collins TPR-720 ATC Radar Beacon

System/Mode S Transponders

10/92

Applicability: TPR-720 Air Traffic Control Radar Beacon System/Mode S Transponders Part Numbers 622-7878-020 and 622-7878-120.

Requirement: Either modify the transponder software in accordance with the instructions in Collins Service Bulletin 8, TPR-720-34-08 dated 19 September 1990 or alternately, modify the transponder hardware in accordance with the instructions in Collins Service Bulletin C, TPR-720-34-C dated 28 April 1992.

Note: FAA AD 92-11-09 Amdt 39-8259 refers.

Compliance: Prior to further flight in United States airspace after twelve calendar months from the effective date of this Directive.

Background: The FAA has received numerous reports of an inability to track aircraft, equipped with the affected transponders, in high density air traffic areas because of transponder malfunctions. Compliance with this Directive prevents this type of transponder malfunction.

Source text

Sourced from the Federal Register of Legislation (legislation.gov.au), CC BY 4.0.

1 AD/RAD/49 - Collins TPR-720 ATC Radar Beacon System/Mode S Transponders