AD 93-32115
Published 1994-01-05 · 2 models · 14 US-registered tails affected · Federal Register
Airworthiness Directives; Honeywell Traffic Alert and Collision Avoidance System II Computer Units, as Installed on Various Transport Category Airplanes Federal Register ↗
Abstract
This amendment adopts a new airworthiness directive (AD), applicable to all Honeywell Traffic Alert and Collision Avoidance System II (TCAS II) computer units installed on various transport category airplanes, that requires replacing certain TCAS II computer units with new units that incorporate updated collision avoidance system (CAS) logic, and modifying the computer surveillance logic. This amendment is prompted by the development of candidate enhancements to TCAS II logic that will improve its utility and increase its overall operational acceptance. 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
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 ↗