NTSB Identification: CHI91LA115.
The docket is stored on NTSB microfiche number 44063.
Scheduled 14 CFR operation of UNITED AIRLINES
Accident occurred Saturday, March 23, 1991 in BUFFALO, NY
Probable Cause Approval Date: 02/08/1993
Aircraft: BOEING 727-222, registration: N7449U
Injuries: 1 Serious,3 Minor,39 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.
THE AIRCRAFT WAS IN CRUISE FLIGHT AT FL 310 WHEN IT ENCOUNTERED CLEAR AIR TURBULENCE. A FLIGHT ATTENDANT IN THE AFT GALLEY WAS SERIOUSLY INJURED. TWO FLIGHT ATTENDANTS IN THE CABIN, AND A PASSENGER WHO WAS IN THE LAVATORY RECEIVED MINOR INJURIES. THE WEATHER BRIEFING CONTAINED A FORECAST FOR THE POSSIBILITY OF TURBULENCE. THE FLIGHT WAS DIVERTED TO AN ALTERNATE AIRPORT TO PROVIDE MEDICAL ASSISTANCE TO THE INJURED PERSONS.
The National Transportation Safety Board determines the probable cause(s) of this accident to be: A CLEAR AIR TURBULENCE ENCOUNTER.
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