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NTSB Report
January 20, 1990 · Mcdonnell Douglas DC-10-10 · N124AA
San Juan, PR
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 20, 1990
Injury Outcomes
47 injuries (2 serious injuries, 45 minor injuries), 100 uninjured
Location
San Juan, PR
Aircraft
Mcdonnell Douglas DC-10-10
Tail Number
N124AA
Injuries
Serious
NTSB Number
MIA90LA058
THE AIRPLANE WAS IN A NORMAL DESCENT FROM FL370 IN PREPARATION FOR ARRIVAL AT THE DESTINATION. AS THE DESCENT CONTINUED THROUGH FL 230 THE FLIGHT EXPERIENCED 2 TURBULENCE EVENTS AND 2 PASSENGERS RECEIVED SERIOUS INJURIES AND 37 PASSENGERS AND 8 FLIGHT ATTENDANTS RECEIVED MINOR INJURIES. THE FLIGHT WAS OPERATING ON A MOONLESS NIGHT AND THE WEATHER AVOIDANCE RADAR WAS ON BUT NOTHING WAS OBSERVED ON THE RADAR.
NTSB Probable Cause
INADVERTENT FLIGHT OF THE AIRPLANE INTO AN AREA OF TURBULENCE ASSOCIATED WITH A DEVELOPING RAIN STORM.
Full Narrative
THE AIRPLANE WAS IN A NORMAL DESCENT FROM FL370 IN PREPARATION FOR ARRIVAL AT THE DESTINATION. AS THE DESCENT CONTINUED THROUGH FL 230 THE FLIGHT EXPERIENCED 2 TURBULENCE EVENTS AND 2 PASSENGERS RECEIVED SERIOUS INJURIES AND 37 PASSENGERS AND 8 FLIGHT ATTENDANTS RECEIVED MINOR INJURIES. THE FLIGHT WAS OPERATING ON A MOONLESS NIGHT AND THE WEATHER AVOIDANCE RADAR WAS ON BUT NOTHING WAS OBSERVED ON THE RADAR.
Flight
Event TypeAccident
Event Time00:50 AST
Nearest Airport0nm N
Runway0
Runway Length0
Runway Width0
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftMcdonnell Douglas DC-10-10
Tail NumberN124AA
Aircraft CategoryAir
Operating RulePart 121
Engines3
Engine TypeTurbofan
Engine DetailsGe · CF-6 · Turbofan
Seats290
People & Injuries
Injury Summary47 injuries (2 serious injuries, 45 minor injuries), 100 uninjured
Fatal0
Serious2
Minor45
Uninjured100
Total147
Crew 1Age 55 · First Class
Conditions
ConditionsVMC
LightDark Night
Wind120° @ 9 kt
Visibility12 sm
CeilingBroken clouds 4000 ft
Temperature / Dew Point70 F
Altimeter30.00 inHg
Observation Time04:53
Weather SourceWFAC