Avionic and flight data management systems, instruments and equipment, namely, fuel management instruments and systems comprised of electronic fuel flow transducers, fuel management computers, and fuel quantity gauges and indicators; altitude management instruments and systems comprised of air data computers, altitude encoders, altitude serializers, and electronic altitude display panels; engine management instruments and systems comprised of encoders, serializers, data converters, data concentrators, and adapters; air data computers, airframe trend monitors, and engine trend monitors
Electrical and Scientific Apparatus