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NTSB Report
January 4, 1992 · Cessna 421B · N1974G
Steamboat Spgs, CO
Overview
Report Status
Probable Cause
Event Type
Accident
Date
January 4, 1992
Injury Outcomes
8 injuries (3 fatalities, 4 serious injuries, 1 minor injury), 1 uninjured
Location
Steamboat Spgs, CO
Aircraft
Cessna 421B
Tail Number
N1974G
Operator
Cebco Aviation
Injuries
Fatal
Aircraft Damage
Destroyed
NTSB Number
DEN92FA024
WHILE INITIATING A CROSS COUNTRY FLIGHT, THE EIGHT PLACE AIRCRAFT WITH NINE PERSONS ABOARD, IMPACTED TERRAIN SHORTLY AFTER TAKEOFF. ICE HAD BEEN SEEN ON THE WINGS AND HORIZONTAL STABILIZER, AND ICING CONDITIONS WERE PRESENT. THE AIRCRAFT WAS OVER MAXIMUM GROSS WEIGHT BY A MINIMUM OF 258 POUNDS, AND THE PILOT HELD AN EXPIRED STUDENT PILOT CERTIFICATE DATED AUGUST 17, 1984. A COPY OF A PRIVATE PILOT CERTIFICATE DESIGNATING MULTIENGINE LAND AND INSTRUMENT WAS FOUND IN THE PILOT'S PERSONAL BELONGINGS. FAA OFFICIALS CONCLUDED THAT IT WAS NOT A VALID CERTIFICATE. AN APPLICATION FOR A MEDICAL CERTIFICATE DATED MAY 30, 1991, INDICATED THE PILOT HAD 4,000 HOURS OF FLIGHT TIME. THIS FIGURE COULD NOT BE VERIFIED. JUST PRIOR TO TAKEOFF THE PILOT WAS OBSERVED BRUSHING SNOW OFF THE WINGS. FOLLOWING THE ACCIDENT GRANULAR ICE WAS FOUND ON THE AERODYNAMIC SURFACES.
NTSB Probable Cause
AIRFRAME ICE AND THE PILOT'S FAILURE TO REMOVE IT. FACTORS WERE: AIRCRAFT WEIGHT EXCEEDED AND LACK OF PILOT CERTIFICATION.
Full Narrative
WHILE INITIATING A CROSS COUNTRY FLIGHT, THE EIGHT PLACE AIRCRAFT WITH NINE PERSONS ABOARD, IMPACTED TERRAIN SHORTLY AFTER TAKEOFF. ICE HAD BEEN SEEN ON THE WINGS AND HORIZONTAL STABILIZER, AND ICING CONDITIONS WERE PRESENT. THE AIRCRAFT WAS OVER MAXIMUM GROSS WEIGHT BY A MINIMUM OF 258 POUNDS, AND THE PILOT HELD AN EXPIRED STUDENT PILOT CERTIFICATE DATED AUGUST 17, 1984. A COPY OF A PRIVATE PILOT CERTIFICATE DESIGNATING MULTIENGINE LAND AND INSTRUMENT WAS FOUND IN THE PILOT'S PERSONAL BELONGINGS. FAA OFFICIALS CONCLUDED THAT IT WAS NOT A VALID CERTIFICATE. AN APPLICATION FOR A MEDICAL CERTIFICATE DATED MAY 30, 1991, INDICATED THE PILOT HAD 4,000 HOURS OF FLIGHT TIME. THIS FIGURE COULD NOT BE VERIFIED. JUST PRIOR TO TAKEOFF THE PILOT WAS OBSERVED BRUSHING SNOW OFF THE WINGS. FOLLOWING THE ACCIDENT GRANULAR ICE WAS FOUND ON THE AERODYNAMIC SURFACES.
Flight
Event TypeAccident
Event Time16:06 MST
Nearest AirportBOBADAMS (0nm NW)
Runway32
Runway Length4000 ft
Runway Width100 ft
Flight Plan FiledIFR
Aircraft FireNo
Aircraft ExplosionNo
Aircraft
AircraftCessna 421B
Tail NumberN1974G
Aircraft CategoryAir
DamageDestroyed
OperatorCebco Aviation
Operating RulePart 91
Engines2
Engine TypeReciprocating
Engine DetailsContinental · GTSIO-520-H · Reciprocating · 375
Seats8
People & Injuries
Injury Summary8 injuries (3 fatalities, 4 serious injuries, 1 minor injury), 1 uninjured
Fatal3
Serious4
Minor1
Uninjured1
Total9
Crew 1Age 33 · Third Class
Conditions
ConditionsIMC
LightDaylight
WindCalm
Visibility2 sm
Ceiling800 ft
Temperature / Dew Point27 C / 0 C
Altimeter29.00 inHg
Observation Time22:49
Weather SourceWFAC