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NTSB Report
July 19, 1989 · Mcdonnell Douglas DC-10-10 · N1846U
Chicago, IL
Overview
Report Status
Probable Cause
Event Type
Incident
Date
July 19, 1989
Injury Outcomes
No injuries (250 uninjured)
Location
Chicago, IL
Aircraft
Mcdonnell Douglas DC-10-10
Tail Number
N1846U
Operator
United Airlines
Injuries
None
NTSB Number
CHI89IA140
THE AIRPLANE HYDROPLANED AFTER LANDING AND RAN OFF THE END OF THE RUNWAY. RUNWAY INSPECTION REVEALED THAT THE RUNWAY GROOVING ALONG THE AIRPLANE'S LANDING ROLL TRACK WAS WORN TO THE POINT TO WHICH IT WAS NONEXISTENT, AND THERE WERE LARGE AREAS OF STANDING WATER ON THE RUNWAY. THE AIRPORT HAD RECORDED 1.28 INCHES OF RAINFALL DURING THE FOUR HOUR PERIOD IMMEDIATELY PRECEDING THE INCIDENT.
NTSB Probable Cause
HYDROPLANING ATTRIBUTED TO THE PHYSICAL CONDITION OF THE RUNWAY, AND THE AIRPORT PERSONNEL'S FAILURE TO ADEQUATELY MAINTAIN THE RUNWAY. CONTRIBUTING FACTORS WERE: THE RAIN AND THE WET RUNWAY.
Full Narrative
THE AIRPLANE HYDROPLANED AFTER LANDING AND RAN OFF THE END OF THE RUNWAY. RUNWAY INSPECTION REVEALED THAT THE RUNWAY GROOVING ALONG THE AIRPLANE'S LANDING ROLL TRACK WAS WORN TO THE POINT TO WHICH IT WAS NONEXISTENT, AND THERE WERE LARGE AREAS OF STANDING WATER ON THE RUNWAY. THE AIRPORT HAD RECORDED 1.28 INCHES OF RAINFALL DURING THE FOUR HOUR PERIOD IMMEDIATELY PRECEDING THE INCIDENT.
Flight
Event TypeIncident
Event Time19:05 CDT
Nearest AirportO'Hare Intl (0nm N)
Runway22R
Runway Length7500 ft
Runway Width150 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMcdonnell Douglas DC-10-10
Tail NumberN1846U
Aircraft CategoryAir
OperatorUnited Airlines
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsGe · CF6-6D · Turbofan · 39300
Seats302
People & Injuries
Injury SummaryNo injuries (250 uninjured)
Fatal0
Serious0
Minor0
Uninjured250
Total250
Crew 1Age 54 · First Class
Conditions
ConditionsVMC
LightDaylight
Wind190° @ 4 kt
Visibility3 sm
CeilingOvercast 6000 ft
Temperature / Dew Point63 F / 61 F
Altimeter29.00 inHg
Observation Time23:50
Weather SourceWFAC