Skip to content

AD 93-32113

Published 1994-01-05 · 7 models · 78 US-registered tails affected · Federal Register

Airworthiness Directives: Allied Signal Aerospace Company, Air Transport Avionics (Formerly Bendix/King Air Transport Avionics Division) Traffic Alert and Collision Avoidance System II Processors Federal Register ↗

Abstract

This amendment adopts a new airworthiness directive (AD) that applies to certain Allied Signal Aerospace Company, Air Transport Avionics (Allied Signal) Traffic Alert and Collision Avoidance System (TCAS) II processors that are installed on aircraft. This action requires replacing the existing TCAS II processor with a new processor that incorporates updated computer logic. The development of candidate enhancements to TCAS II logic that improves its utility and increases its overall operational acceptance prompted the proposed action. The actions specified by this AD are intended to prevent collisions or near misses caused by incompatibility between the TCAS II processors and the current air traffic control system.

Applicability · by US fleet size

  • BEECH 65-A90 34 tails
  • ROCKWELL INTERNATIONAL NA-265-65 27 tails
  • CONVAIR 340 7 tails
  • CONVAIR 440 5 tails
  • ROCKWELL INTERNATIONAL NA-265 2 tails
  • CLARK 1000 2 tails
  • ROCKWELL INTERNATIONAL 65 1 tails

Compliance instructions

Required actions, compliance times, parts/serial numbers and methods of compliance are in the Federal Register publication — not paraphrased here. Read AD on Federal Register ↗