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NTSB Report
October 9, 2021 · Boeing 737-8H4 · N8642E
Lexington, VA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
October 9, 2021
Injury Outcomes
1 injury (1 serious injury), 111 uninjured
Location
Lexington, VA
Aircraft
Boeing 737-8H4 (2014)
Tail Number
N8642E
Operator
Southwest Airlines
Injuries
Serious
NTSB Number
DCA22LA012
The airplane was in cruise flight when it encountered convective turbulence at flight level (FL) 320. Weather conditions were dark moonless night with scattered storms visible on radar, but the crew reported no returns along their path. A Convective SIGMET was in effect for the area which forecast cloud tops to FL320. The cabin crew was conducting drink service. The flight crew stated they unexpectedly entered a cloud and experienced moderate to borderline severe turbulence. The C flight attendant fell and broke her ankle.
NTSB Probable Cause
Environmental issues-Conditions/weather/phenomena-Turbulence-Convective turbulence-Awareness of condition
Full Narrative
The airplane was in cruise flight when it encountered convective turbulence at flight level (FL) 320. Weather conditions were dark moonless night with scattered storms visible on radar, but the crew reported no returns along their path. A Convective SIGMET was in effect for the area which forecast cloud tops to FL320. The cabin crew was conducting drink service. The flight crew stated they unexpectedly entered a cloud and experienced moderate to borderline severe turbulence. The C flight attendant fell and broke her ankle.
Flight
Event TypeAccident
Event Time20:30 EDT
Nearest Airport0nm
Flight Plan FiledIFR
Flight Plan ActivatedYes
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBoeing 737-8H4
Tail NumberN8642E
Aircraft CategoryAir
OperatorSouthwest Airlines
Operating RulePart 121
Engines2
Engine TypeTurbofan
Engine DetailsCfm Intl · CFM56-7B27E · Turbofan · 27300 | Cfm Intl · CFM56-7B27E · Turbofan · 27300
Seats185
People & Injuries
Injury Summary1 injury (1 serious injury), 111 uninjured
Fatal0
Serious1
Minor0
Uninjured111
Total112
Crew 1Age 56 · First Class · None
Crew 2First Class · None
Crew 3Serious
Conditions
ConditionsVMC
LightNight
Wind190° @ 4 kt
CeilingNone
Temperature / Dew Point66 F
Altimeter29.92 inHg
Observation Time23:54
Weather SourceWFAC