NTSB Identification: CHI97LA060.
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Scheduled 14 CFR operation of TRANS WORLD AIRLINES (D.B.A. TWA )
Accident occurred Tuesday, January 28, 1997 in CAPE GIRARDEAU, MO
Probable Cause Approval Date: 09/05/1997
Aircraft: McDonnell Douglas DC-9-51, registration: N414EA
Injuries: 1 Serious,1 Minor,110 Uninjured.
NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.
TWA Flight 374 encountered severe clear air turbulence over Cape Girardeau at FL220 during their initial descent into St. Louis. One flight attendant received a broken clavicle and another flight attendant received bruised ribs as a result of the turbulence. The flight data recorder data showed changes in vertical acceleration between +2.5g's and -0.79g's. A SIGMET for moderate occasional severe turbulence from FL240 to FL350 was issued just after the flight took off from New Orleans, LA. TWA 374 had just been cleared to a lower altitude as it was starting to get 'bumpy' when the severe turbulence was encountered.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: clear air turbulence encountered by the flight. Full narrative available
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