NTSB Identification: DEN82IA098
Scheduled 14 CFR Part 121: Air Carrier operation of UNITED AIRLINES INC.
Incident occurred Thursday, May 27, 1982 in NEAR GOSHEN, IN
Probable Cause Approval Date: 05/27/1983
Aircraft: DOUGLAS DC-8-61, registration: N8088U
Injuries: 17 Minor,129 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

THIS AIRCRAFT ENCOUNTERED UNFORECAST SEVERE CLEAR AIR TURBULANCE (CAT) WHILE IN CRUISE FLIGHT AT FL350 NEAR GOSHEN, IN. AS A RESULT OF THE ENCOUNTER, THE AIRCRAFT ENTERED AN UNCONTROLLED DESCENT WHICH WAS ARRESTED AT 31,500 FEET. A TOTAL OF SEVENTEEN PASSENGERS AND FIVE FLIGHT ATTENDANTS RECEIVED MINOR INJURIES. THE AIRCRAFT WAS INSPECTED AND FOUND AIRWORTHY. THE ONLY WARNING THAT THE CREW HAD AS TO THE POSSIBILITY OF CAT WAS A PIREP, PASSED ON BY THE CENTER CONTROLLER, THAT REPORTED MODERATE OR LESS TURBULANCE IN THE AREA. AFTER THE ENCOUNTER THE FLIGHT CONTINUED UNEVENTFULLY TO DENVER.

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

WEATHER CONDITION..DOWNDRAFT

The National Transportation Safety Board determines the probable cause(s) of this incident to be:

WEATHER CONDITION..TURBULENCE,CLEAR AIR

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