Gulfstream G100/G150 (IAI 1125 Astra)
Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP); Flight Crew Multiengine
Situational Awareness
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy
Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft
ADC (Air Data Computer) 1 failure. Resulting in over speed/gearing warning horns. When the failure happened we switched over to ADC 2. During the descent the warnings kept happening however everything was fine. ADC 1 kept thinking it was over speeding then when we pulled the power out to slow down during our descent it thought we were flying below our gear down speed. We were able to utilize ADC 2 for and continue the flight safely to the intended destination.
Pilot reported ADC (Air Data Computer) 1 failing inflight; causing numerous false warnings and requiring Flight Crew to rely on ADC2 for the remainder of the successful flight to destination airport.