B767-300 and 300 ER
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Ground Event / Encounter Loss Of Aircraft Control; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Provided Assistance; Flight Crew Requested ATC Assistance / Clarification; General Maintenance Action
Airport; Weather
After crossing inactive Runway 28 on Taxiway foxtrot and turning to join Taxiway bravo westbound; aircraft started sliding toward edge of taxiway. Captain stopped forward progress to avoid departing the taxiway. We remained stationary on the taxiway and called Ground Control and our Ramp for assistance as we determined that the braking action was nil for that area of Taxiway bravo. Airport sand truck and (Company) tow vehicle approached us with difficulty. After sanding the area; we were towed to the taxiway centerline and continued to depart on Runway 22. We were stuck on the taxiway for approximately 20 minutes for this process. ATIS had reported taxiways to be fair to poor braking action. We conducted the turn at around 5 kts. before noticing the slide and stopping.Temperatures hovering around freezing with wet taxiways.
B-767 First Officer reported loss of directional control during taxi due to ice on taxiways.