EMB ERJ 170/175 ER/LR
Flight Crew Air Transport Pilot (ATP)
Training / Qualification
Deviation - Speed All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Ground Event / Encounter Other / Unknown
General None Reported / Taken
Human Factors
We had just landed at IAD on 1L and received instructions from ground control to taxi via U W4 and hold short of 1C. While on taxiway U; the Captain began taxiing at a high rate of speed. The aircraft accelerated quickly while I was completing my after landing flow; but I noticed that we had a ground speed of 65kts and an indicated airspeed of 70kts. I told the Captain that he was at 65kts and he said 'ya'; but did pull the power back and allowed the airplane to coast and slow down.  After holding short of 1C; tower told us to cross with no delay. As I was reading back the instructions; we received a red master warning with an associated CAS message and aural warning for No Takeoff due to nearly having full power on our one running engine.  After all the passengers had deplaned; I asked one of the flight attendants if she could tell if we were taxiing too fast. She emphatically replied yes. Taxiing at a high rate of speed has been consistent with this Captain today.I could have used the brakes on my side to slow the airplane down or kept it from speeding up so much. I could have noticed how fast the airplane was taxiing sooner and spoken up as soon as the airplane exceeded the safe taxi speed.
EMB-175 First Officer reported his Captain has a habit of taxiing at an inappropriately high rate of speed.