Narrative:

Last night after freezing rain occurred at the airport; the taxiways and runways were very slick. ATIS was reporting wet runways and slippery taxiways. We briefed the threat prior to taxiing. Taxiing to runway requires a short back taxi at the end of the runway. I taxied to the right side of the runway to the turnaround area; when I tried to make the left 180 degree turn; the aircraft did not respond to steering or brake commands. At a very slow speed; (slow walk); combined with the runway slope; the aircraft slid off the runway at about a 45 degree angle. The rh main gear and nose gear left the runway surface. The surface was frozen and hard packed; the aircraft came to a gentle stop. [We] made arrangements to have the passengers bused back to the terminal. Ops tugged the aircraft back up on to the runway surface. Taxied aircraft back to the gate; notified maintenance and maintenance operations manager.inclement weather; freezing rain the night prior; resulting in very slippery taxiway and runway conditions. We were the first aircraft to taxi out so we had no other pilot reports of actual conditions.runway [assigned] requires a short back taxi and a 180 degree turn; under these condition airfield ops needs to take more precautions to deice the turnaround and threshold portion of the runway.

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Original NASA ASRS Text

Title: CRJ-900 flight crew reported sliding off the pavement while taxiing on an icy surface.

Narrative: Last night after freezing rain occurred at the airport; the taxiways and runways were very slick. ATIS was reporting wet runways and slippery taxiways. We briefed the threat prior to taxiing. Taxiing to runway requires a short back taxi at the end of the runway. I taxied to the right side of the runway to the turnaround area; when I tried to make the left 180 degree turn; the aircraft did not respond to steering or brake commands. At a very slow speed; (slow walk); combined with the runway slope; the aircraft slid off the runway at about a 45 degree angle. The RH main gear and nose gear left the runway surface. The surface was frozen and hard packed; the aircraft came to a gentle stop. [We] made arrangements to have the passengers bused back to the terminal. Ops tugged the aircraft back up on to the runway surface. Taxied aircraft back to the gate; notified Maintenance and Maintenance Operations Manager.Inclement weather; freezing rain the night prior; resulting in very slippery taxiway and runway conditions. We were the first aircraft to taxi out so we had no other pilot reports of actual conditions.Runway [assigned] requires a short back taxi and a 180 degree turn; under these condition Airfield Ops needs to take more precautions to deice the turnaround and threshold portion of the runway.

Data retrieved from NASA's ASRS site 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.