Airworthiness Directive · Amendment 39-9495 · Alliedsignal Avionics, Inc. Appliances
Alliedsignal Avionics, Inc. Appliances
Superseded. A later AD replaced this one: AD 95-26-15 R1. Comply with the one in force.
This AD applies to Alliedsignal Avionics, Inc. Traffic Alert and Collision Avoidance System.
The models as the FAA's AD index lists them. The serial ranges, installed parts and exceptions are in the AD itself: read it at the FAA.
This document publishes in the Federal Register an amendment adopting an airworthiness directive that was sent previously by individual letters to all known U.S. owners and operators of various transport category airplanes equipped with Allied Signal Commercial Avionics Systems CAS-81 TCAS. This amendment is prompted by reports of failure of the audio output of the CAS-81 TCAS. This AD requires a revision to the Airplane Flight Manual to provide the flightcrew with procedures to cycle power to the TCAS processor via the circuit breaker or power bus, and to perform a TCAS functional test to verify proper operation of the TCAS. The actions specified by this AD are intended to ensure that the flightcrew is advised of the potential hazard associated with failure of the audio output of the CAS-81 TCAS, and of the procedures necessary to address it.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Appliances and equipment
