Incident Overview

Date: Friday 16 July 1993
Aircraft Type: Boeing 767-322ER
Owner/operator: United Airlines
Registration Number: N645UA
Location: Caribbean Sea – ÿ Atlantic Ocean
Phase of Flight: Unknown
Casualties: Fatalities: 0 / Occupants: 164
Component Affected: Flight AircraftFlight Aircraft
Category: Accident
During a cruise flight at altitude 350, the aircraft encountered rapid turbulence, characterized by sharp jolts of turbulence lasting approximately 15 seconds. Radar data was unavailable at the time. The flight continued to the scheduled destination, where the injured flight attendants were treated.During a cruise flight at altitude 350, the aircraft encountered rapid turbulence, characterized by sharp jolts of turbulence lasting approximately 15 seconds. Radar data was unavailable at the time. The flight continued to the scheduled destination, where the injured flight attendants were treated.

Description

DURING CRUISE FLIGHT AT FLIGHT LEVEL 350, THE FLIGHT ENCOUNTERED THE TOPS OF CIRRUS CLOUDS FOLLOWED SHORTLY THEREAFTER BY TWO SHARP JOLTS OF TURBULENCE WHICH LASTED ABOUT 15 SECONDS. AT THE TIME OF THE ACCIDENT, THE WEATHER RADAR WAS ON AND NO WEATHER WAS DEPICTED. THE FLIGHT CONTINUED TO THE SCHEDULED DESTINATION WHERE THE INJURED FLIGHT ATTENDANTS WERE TREATED. Probable Cause: TURBULENCE ENCOUNTERED DURING CRUISE FLIGHT AFTER ENTERING CIRRUS CLOUDS.

Primary Cause

Turbulence encountered during the cruise flight after entering CIRRUS CLOUDS.Turbulence encountered during the cruise flight after entering CIRRUS CLOUDS.

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