Nov 24, 2010
Accident
Substantial Salt Lake City, UT
InjuriesNone
Phase of Flight-
ConditionsIMC
OperationFAR 121
Probable Cause
The tug driver’s loss of airplane control during pushback due to a loss of traction in slippery conditions on the ramp. Contributing to the accident was the ground crews’ and airline operators’ inadequate guidance with regard to pushback procedures during low ground traction conditions with an inoperative airplane auxiliary power unit.
NTSB WPR11LA058