Apr 18, 2002
Accident
Springfield, MO
Injuries3 serious, 12 minor
Phase of Flight-
ConditionsVMC
OperationFAR 121
Probable Cause
The flightcrew's failure to follow weather avoidance prcedures and their delay in activating the seat belt sign. Factors were the turbulent thunderstorm weather conditions, and the failure of the National Weather Service to issue an applicable in-flight weather advisory.
NTSB CHI02LA111