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NTSB Report
May 11, 1990 · Boeing B-737 · N990UA
Washington, DC
Overview
Report Status
Probable Cause
Event Type
Accident
Date
May 11, 1990
Injury Outcomes
1 injury (1 serious injury), 4 uninjured
Location
Washington, DC
Aircraft
Boeing B-737
Tail Number
N990UA
Operator
United Airlines
Injuries
Serious
NTSB Number
BFO90LA043
THE ACFT WAS DESCENDING THROUGH 8500 FT WHEN IT ENCOUNTERED CLEAR AIR TURBULENCE, CAUSING A FLIGHT ATTENDANT TO FALL AND FRACTURE HER RIB. AT THE TIME SHE WAS PREPARING THE CABIN FOR LANDING.
NTSB Probable Cause
THE AIRCRAFT ENCOUNTERED TURBULENCE, RESULTING IN INJURY TO A FLIGHT ATTENDANT.
Full Narrative
THE ACFT WAS DESCENDING THROUGH 8500 FT WHEN IT ENCOUNTERED CLEAR AIR TURBULENCE, CAUSING A FLIGHT ATTENDANT TO FALL AND FRACTURE HER RIB. AT THE TIME SHE WAS PREPARING THE CABIN FOR LANDING.
Flight
Event TypeAccident
Event Time13:00 EDT
Nearest AirportDulles Intl (0nm N)
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing B-737
Tail NumberN990UA
Aircraft CategoryAir
OperatorUnited Airlines
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsP&W · JT8D-17 · Turbofan · 20000
People & Injuries
Injury Summary1 injury (1 serious injury), 4 uninjured
Fatal0
Serious1
Minor0
Uninjured4
Total5
Crew 1Age 51 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind10° @ 11 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point70 F / 52
Altimeter30.00 inHg
Observation Time15:50
Weather SourceWFAC