EMB ERJ 145 ER/LR
Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Human-Machine Interface; Training / Qualification
Aircraft Equipment Problem Less Severe; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter CFTT / CFIT; Inflight Event / Encounter Weather / Turbulence
Flight Crew Executed Go Around / Missed Approach; Flight Crew FLC Overrode Automation; Flight Crew Took Evasive Action
Aircraft; Weather
Approached ZZZ in gusty conditions with the autopilot engaged. At approximately 700 feet AGL executed a go-around. Although I pushed the TOGA button; the aircraft did not enter go-around mode and the addition of power caused an excessive sink rate along with a sink rate GPWS message. Autopilot then disconnected and the captain pushed the TOGA button again; at which point a normal go around was performed.I now know the autopilot does not handle gusting approaches well.
Air Carrier First Officer reported that the aircraft did not perform as expected after pushing the TOGA button while the autopilot was engaged on a go-around.