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NTSB Report
December 23, 1992 · Rockwell 690C · N81TR
Golden, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 23, 1992
Injury Outcomes
1 injury (1 fatality)
Location
Golden, CO
Aircraft
Rockwell 690C
Tail Number
N81TR
Operator
Casper Air Service
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN93FA017
WHILE IN A DESCENT FOR ARRIVAL AT THE DESTINATION AIRPORT, THE AIRCRAFT SUSTAINED STRUCTURAL FAILURE WITH THE RIGHT OUTER WING, HORIZONTAL STABILIZER, AND VERTICAL STABILIZER SEPARATING FROM THE AIRCRAFT. THE AIRCRAFT IMPACTED APPROXIMATELY 10 MILES FROM THE PLANNED DESTINATION. ACCORDING TO RADAR DATA AND OTHER RESEARCH, THE DESCENT WAS CONDUCTED AT VNE AND KNOWN SEVERE TURBULENCE WAS PRESENT IN THE AREA AT THE TIME OF THE ACCIDENT.
NTSB Probable Cause
THE PILOT FLYING THE AIRCRAFT BEYOND THE DESIGN MANEUVERING SPEED AND EXCEEDING THE DESIGN STRESS LIMITS. A FACTOR WAS: CLEAR AIR TURBULENCE.
Full Narrative
WHILE IN A DESCENT FOR ARRIVAL AT THE DESTINATION AIRPORT, THE AIRCRAFT SUSTAINED STRUCTURAL FAILURE WITH THE RIGHT OUTER WING, HORIZONTAL STABILIZER, AND VERTICAL STABILIZER SEPARATING FROM THE AIRCRAFT. THE AIRCRAFT IMPACTED APPROXIMATELY 10 MILES FROM THE PLANNED DESTINATION. ACCORDING TO RADAR DATA AND OTHER RESEARCH, THE DESCENT WAS CONDUCTED AT VNE AND KNOWN SEVERE TURBULENCE WAS PRESENT IN THE AREA AT THE TIME OF THE ACCIDENT.
Flight
Event TypeAccident
Event Time20:22 MST
Nearest Airport0nm N
Runway0
Flight Plan FiledVFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftRockwell 690C
Tail NumberN81TR
Aircraft CategoryAir
DamageDestroyed
OperatorCasper Air Service
Operating RulePart 135
Engines2
Engine TypeTurboprop
Engine DetailsGarrett · TPE-33-1254 · Turboprop · 715
Seats2
People & Injuries
Injury Summary1 injury (1 fatality)
Fatal1
Serious0
Minor0
Uninjured0
Total1
Crew 1Age 30 · First Class
Conditions
ConditionsVMC
LightBright Night
Wind260° @ 30 kt, gusting 45 kt
Visibility15 sm
CeilingNone
Temperature / Dew Point36 C / 7 C
Altimeter29.00 inHg
Observation Time02:45
Weather SourceWFAC