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Tue, Apr 27, 2004

AD: Narco

AD NUMBER: 2004-08-16
MANUFACTURER:
Transponder
SUBJECT: Airworthiness Directive 2004-08-16 SUMMARY: The FAA is adopting a new airworthiness directive (AD) for certain serial numbers (SNs) of NARCO Avionics Inc. AT150 transponders. This AD requires modification to the transponder by adding a resistor and transistor to the circuit board. This AD results from reports of AT150 transponders not recognizing and responding properly to Mode S interrogations from Mode S ground stations and Traffic Alert and Collision Avoidance System (TCAS-II) airborne equipment. We are issuing this AD to prevent loss of aircraft airspace separation and the possibility of mid-air collision.

FMI: www.avantext.com/DailyADIndex.ASP?AD=20040816

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