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NTSB Report
January 8, 1993 · Cessna 172 · N20513
San Jacinto, CA
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 8, 1993
Injury Outcomes
1 injury (1 serious injury)
Location
San Jacinto, CA
Aircraft
Cessna 172
Tail Number
N20513
Operator
Ross Herman D & Cherri L
Injuries
Serious
Aircraft Damage
Destroyed
NTSB Number
LAX93LA091
THE PILOT WAS WHILE FLYING AT 10,500 FEET MSL ABOVE THE OVERCAST OVER A MOUNTAINOUS AREA. THE FLIGHT ENCOUNTERED SEVERE CLEAR AIR TURBULENCE CAUSING THE AIRCRAFT TO ENTER INTO AN UNCONTROLLED ROLL. WHEN THE PILOT REGAINED CONTROL OF THE AIRCRAFT IT HAD ENTERED THE CLOUDS. BEFORE THE PILOT COULD EFFECT A TOTAL RECOVERY THE AIRCRAFT COLLIDED WITH THE TREES AT THE CREST OF THE MOUNTAIN. THE ACCIDENT SITE ELEVATION IS 9,277 FEET MSL.
NTSB Probable Cause
THE FLIGHT'S ENCOUNTER WITH UNFORECAST CLEAR AIR TURBULENCE.
Full Narrative
THE PILOT WAS WHILE FLYING AT 10,500 FEET MSL ABOVE THE OVERCAST OVER A MOUNTAINOUS AREA. THE FLIGHT ENCOUNTERED SEVERE CLEAR AIR TURBULENCE CAUSING THE AIRCRAFT TO ENTER INTO AN UNCONTROLLED ROLL. WHEN THE PILOT REGAINED CONTROL OF THE AIRCRAFT IT HAD ENTERED THE CLOUDS. BEFORE THE PILOT COULD EFFECT A TOTAL RECOVERY THE AIRCRAFT COLLIDED WITH THE TREES AT THE CREST OF THE MOUNTAIN. THE ACCIDENT SITE ELEVATION IS 9,277 FEET MSL.
Flight
Event TypeAccident
Event Time16:10 PST
Nearest Airport0nm N
Runway0
Flight Plan FiledNone
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 172
Tail NumberN20513
Aircraft CategoryAir
DamageDestroyed
OperatorRoss Herman D & Cherri L
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsLycoming · O-360-E2D · Reciprocating · 150
Seats4
People & Injuries
Injury Summary1 injury (1 serious injury)
Fatal0
Serious1
Minor0
Uninjured0
Total1
Crew 1Age 46 · Second Class
Conditions
ConditionsIMC
LightDaylight
Wind270° @ 30 kt
CeilingOvercast 100 ft
Temperature / Dew Point25 C / 0 C
Altimeter0
Weather SourcePILO