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NTSB Report
December 16, 1989 · Beech B35-A33 · N477T
Castle Rock, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
December 16, 1989
Injury Outcomes
2 injuries (2 fatalities)
Location
Castle Rock, CO
Aircraft
Beech B35-A33
Tail Number
N477T
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN90FA033
A VFR FLIGHT PLAN HAD BEEN FILED BUT, WHILE ENROUTE TO DENVER IT WAS CHANGED TO AN IFR FLIGHT PLAN WHEN THE PILOT REALIZED THE WEATHER HAD DETERIORATED TO INSTRUMENT METEOROLOGICAL CONDITIONS. THE PILOT ACKNOWLEDGED A CLEARANCE FOR AN ILS APPROACH INTO CENTENNIAL AIRPORT, ENGLEWOOD, COLORADO, BUT DURING THE APPROACH HE SAID THAT HE WAS '...ALL TURNED AROUND AND WAS HAVING TROUBLE CONTROLLING THE AIRCRAFT.' THERE WAS NO FURTHER CONTACT WITH THE PILOT AND THE AIRCRAFT FAILED TO ARRIVE AT THE AIRPORT. A SEARCH WAS CONDUCTED AND THE AIRCRAFT WRECKAGE WAS FOUND SHORTLY AFTER DAYBREAK THE FOLLOWING MORNING. RADAR INFORMATION CONFIRMED THAT THE PILOT WAS FLYING IN CIRCLES AND HAD NOT ESTABLISHED HIMSELF ON THE APPROACH.
NTSB Probable Cause
THE PILOT'S LOSS OF CONTROL AS A RESULT OF SPATIAL DISORIENTATION. FACTORS RELATED TO THE ACCIDENT WERE: THE ADVERSE WEATHER CONDITIONS.
Full Narrative
A VFR FLIGHT PLAN HAD BEEN FILED BUT, WHILE ENROUTE TO DENVER IT WAS CHANGED TO AN IFR FLIGHT PLAN WHEN THE PILOT REALIZED THE WEATHER HAD DETERIORATED TO INSTRUMENT METEOROLOGICAL CONDITIONS. THE PILOT ACKNOWLEDGED A CLEARANCE FOR AN ILS APPROACH INTO CENTENNIAL AIRPORT, ENGLEWOOD, COLORADO, BUT DURING THE APPROACH HE SAID THAT HE WAS '...ALL TURNED AROUND AND WAS HAVING TROUBLE CONTROLLING THE AIRCRAFT.' THERE WAS NO FURTHER CONTACT WITH THE PILOT AND THE AIRCRAFT FAILED TO ARRIVE AT THE AIRPORT. A SEARCH WAS CONDUCTED AND THE AIRCRAFT WRECKAGE WAS FOUND SHORTLY AFTER DAYBREAK THE FOLLOWING MORNING. RADAR INFORMATION CONFIRMED THAT THE PILOT WAS FLYING IN CIRCLES AND HAD NOT ESTABLISHED HIMSELF ON THE APPROACH.
Flight
Event TypeAccident
Event Time13:44 MST
Nearest AirportCentennial (0nm N)
Runway35R
Runway Length10001 ft
Runway Width100 ft
Flight Plan FiledVfif
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftBeech B35-A33
Tail NumberN477T
Aircraft CategoryAir
DamageDestroyed
Operating RulePart 91
Engines1
Engine TypeReciprocating
Engine DetailsContinental · IO-470-K3 · Reciprocating · 225
Seats4
People & Injuries
Injury Summary2 injuries (2 fatalities)
Fatal2
Serious0
Minor0
Uninjured0
Total2
Crew 1Age 58 · Second Class
Conditions
ConditionsIMC
LightDaylight
Wind360° @ 8 kt
Visibility1 sm
Ceiling300 ft
Temperature / Dew Point18 C / 16 C
Altimeter29.00 inHg
Observation Time20:45
Weather SourceWFAC