Erj-170 captain reported that the aircraft started to drift to the right while taxiing after one eng...

Narrative:

As we cleared the runway I asked for 'shutdown #2 engine.' we made a right turn and as we straightened out on the taxiway the plane just sort of started drifting to the right side and I quickly noticed my steering was not working. I stopped. We noticed the 'steering off' message on EICAS. I tried resetting the steering disconnect switch with depressing the tiller down to again connect the steering but nothing worked. After talking to ground and getting a tug coming out to help us; I called maintenance control. We did reset per QRH (not pulling any circuit breakers)...he agreed we'll just get towed to the gate and look at it there. It became evident the tug was going to be a while. I considered I would have a better chance to taxi using differential steering having both engines started. At that moment it occurred to me the engine shut down correlated soon after with this steering fail. I looked up at the hydraulic pumps and they were in the 'off' position. Mystery solved. First officer simply turned pumps off when intending to turn them on. Turning pumps on; steering now worked and we taxied uneventfully to the gate. Never shut down engine approaching or turning a corner; just in case. Verify pumps are turned on.

Original NASA ASRS Text

Title: ERJ-170 Captain reported that the aircraft started to drift to the right while taxiing after one engine was shutdown. Nosewheel steering was inoperative and Captain subsequently noted that the First Officer had turned the hydraulic pump off.

Narrative: As we cleared the runway I asked for 'shutdown #2 engine.' We made a right turn and as we straightened out on the taxiway the plane just sort of started drifting to the right side and I quickly noticed my steering was not working. I stopped. We noticed the 'steering off' message on EICAS. I tried resetting the steering disconnect switch with depressing the tiller down to again connect the steering but nothing worked. After talking to Ground and getting a tug coming out to help us; I called Maintenance Control. We did reset per QRH (not pulling any circuit breakers)...he agreed we'll just get towed to the gate and look at it there. It became evident the tug was going to be a while. I considered I would have a better chance to taxi using differential steering having both engines started. At that moment it occurred to me the engine shut down correlated soon after with this steering fail. I looked up at the hydraulic pumps and they were in the 'OFF' position. Mystery solved. First Officer simply turned pumps OFF when intending to turn them on. Turning pumps on; steering now worked and we taxied uneventfully to the gate. Never shut down engine approaching or turning a corner; just in case. Verify pumps are turned on.

Data retrieved from NASA's ASRS site as of July 2013 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Attributes
ACN	1037752
Time
Date	201209
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Aircraft 1
Make Model Name	EMB ERJ 170/175 ER/LR
Operating Under FAR Part	Part 121
Flight Phase	Taxi
Component
Aircraft Component	Hydraulic System Pump
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Events
Anomaly	Aircraft Equipment Problem Less Severe Deviation - Procedural Published Material / Policy

Erj-170 captain reported that the aircraft started to drift to the right while taxiing after one engine was shutdown. Nosewheel steering was inoperative and captain subsequently noted that the first officer had turned the hydraulic pump off.