Flight Crew Multiengine; Flight Crew Instrument; Flight Crew Air Transport Pilot (ATP)
Flight Crew Last 90 Days 100; Flight Crew Total 2600; Flight Crew Type 1500
Ground Event / Encounter Weather / Turbulence; Ground Event / Encounter Loss Of Aircraft Control; Ground Excursion Taxiway
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification
Weather; Airport
After a non-eventful landing at BED started our taxi. Made the turn from a snow covered taxiway onto a taxiway that had just been swept but not sanded; all 3 wheels lost traction simultaneously and we began to slide sideways to the edge of the taxiway. Only one main (right) and the nose-wheel barely entered the snow and the left main was still on the taxiway. Due to the existing conditions the rate of taxi was slower than normal which prevented the aircraft from sliding at a fast rate or traveling far resulting in zero damage to the aircraft. [Ground crew] was able to successfully tow the aircraft out and to the FBO where a Mechanic did a thorough inspection which verified no damage and the aircraft was returned to duty. I believe the sweeping of the taxiway revealed the underlying ice sheet; had it been sanded or not swept at all I believe the incident could have been avoided.
Taxiing in at BED went from snow covered taxiway to one ice covered that had been broomed but not sanded. We were taxiing very slowly; but in the turn went into a slow slide into grass. No damage was done as only one main was in snow bank;and nose was just off taxiway. [Ground personnel] came out and pulled us out. We had mechanic inspect everything; and we were on our way the next day.
Small jet flight crew reported loss of directional control during taxi in snowy and icy conditions at BED that resulted in an excursion off the taxiway.