Aircraft Accident/Incident Report

Boulder, Colorado 80306
Sunday, April 1, 1990 15:40 MDT

NTSB Narrative Summary Released at Completion of Accident

THE AIRPLANE WAS OBSERVED FLYING ERRATICALLY AT A LOW ALTITUDE, THEN ENTER A LEFT WING, NOSE LOW ATTITUDE, IMPACTING THE GROUND IN A RESIDENTIAL AREA. AUTOPSIES ON BOTH OCCUPANTS INCLUDED FINDINGS OF MASSIVE TRAUMATIC INJURIES SUSTAINED DURING A STRUGGLE. THE PASSENGER REPORTEDLY PLANNED TO TAKE HIS LIFE BY JUMPING OUT OF AN AIRPLANE OVER THE MOUNTAINS OF COLORADO BECAUSE HE BELIEVED HE HAD AN INOPERABLE BRAIN TUMOR.

NTSB Probable Cause Narrative

A LOSS OF AIRPLANE CONTROL AS A RESULT CONTROL INTERFERENCE BY THE PASSENGER FOLLOWING A STRUGGLE BETWEEN THE PILOT AND THE PASSENGER.

Event Information

Type of Event Accident
Event Date 4/1/1990
Event Day of the Week Sunday
Time of Event 1540
Event Time Zone Mountain Daylight Time
Event City BOULDER
Event State COLORADO
Event Country --
Zipcode of the event site 80306
Event Date Year 1990
Event Date Month 4
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID NONE
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation --
Weather Briefing Completeness Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 1745 Mountain Daylight Time
Direction of event from weather observation facility (degrees) 135
Weather Observation Facility ID BJC
Elevation of weather observation facility 5658
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation MDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 6000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 30
Air Temperature at event time (in degrees celsius) 9
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 40
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 6000
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 1
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 3
Investigating Agency NTSB
NTSB Docket Number (internal use) 1099
NTSB Notification Source --
NTSB Notification Date Apr 1 1990 12:00AM
NTSB Notification Time 1610
Fiche Number and/or location -used to find docket information 42319
Date of most recent change to record Dec 12 2000 4:53PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N2655V
NTSB Number DEN90FA085
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 135: Air Taxi & Commuter
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 421-C
Aircraft Series Identifier 421-C
Aircraft Serial Number 532C0702
Certified Max Gross Weight 7450
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Continuous Airworthiness
Date of Last Inspection Mar 4 1990 12:00AM
Airframe hours since last inspection 50
Airframe Hours 4117
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name SKYWAYS ASSOCIATES PARTNERSHIP
Aircraft Owner Street Address P.O. BOX 130
Aircraft Owner City RATON
Aircraft Owner State NM
Aircraft Owner Country
Aircraft Owner Zipcode 87740
Operator is an individual? --
Operator Name ROCKY MOUNTAIN INTENSIVE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 8505 MONTVIEW BLVD. BOX 38307
Operator City DENVER
Operator State CO
Operator Country
Operator Zip code 80238
Operator Code CLFA
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Non-scheduled
Indicates Domestic or International Flight Domestic
Operator carrying Pax/Cargo/Mail Passenger Only
Type of Flying (Per_Bus / Primary) Unknown
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code GNB
Departure City GRANBY
Departure State CO
Departure Country
Departure Time 1515
Departure Time Zone MDT
Destination Same as Local Flt --
Destination Airport Code DEN
Destination City DENVER
Destination State CO
Destination Country
Specific Phase of Flight Descent
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --