Mark Andrews Grand Forks Airport
Aircraft Accident/Incident Report

Grand Forks, North Dakota 58102
Saturday, April 21, 1990 10:58 CDT

NTSB Narrative Summary Released at Completion of Accident

N64UV SUSTAINED SUBSTANTIAL DAMAGE DURING AN EMERGENCY LANDING, IN A FIELD NEAR THE GRAND FORKS INTERNATIONAL AIRPORT, NORTH DAKOTA. DURING FINAL APPROACH TO LANDING, THE AIRCRAFT ENGINE SUDDENLY STOPPED. THE INSTRUCTOR TOOK OVER THE CONTROLS. HE SAID THE ENGINE DID NOT RESTART AND HE WAS FORCED TO LAND ON AN UNSUITABLE LANDING SURFACE. DURING THE LANDING ROLL THE AIRCRAFT NOSED OVER. INSPECTION OF THE ENGINE INDICATED THAT THE POER LOSS WAS DUE TO VAPOR LOCK IN THE INLET FUEL LINE TO THE ELECTRIC BOOST PUMP. SUBSEQUENT ENGINE TEST RUN WAS SUCCESSFUL.

NTSB Probable Cause Narrative

AN OVER TEMPERATURE OF THE INLET FUEL LINE RESULTING IN FUEL STARVATION (VAPOR LOCK) IN THE FUEL INJECTION SYSTEM. A FACTOR IN THE ACCIDENT WAS THE LACK OF A SUITABLE LANDING AREA.

Event Information

Type of Event Accident
Event Date 4/21/1990
Event Day of the Week Saturday
Time of Event 1058
Event Time Zone Central Daylight Time
Event City GRAND FORKS
Event State NORTH DAKOTA
Event Country --
Zipcode of the event site 58102
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 MARK ANDREWS GRAND FORKS
Event Location Nearest Airport ID GFK
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 Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1100 Central Daylight Time
Direction of event from weather observation facility (degrees) 350
Weather Observation Facility ID GFK
Elevation of weather observation facility 900
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 23
Dew Point at event time (in degress fahrenheit) 1
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Unknown
Wind Speed (knots) 16
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 588
NTSB Notification Source --
NTSB Notification Date Apr 21 1990 12:00AM
NTSB Notification Time 1130
Fiche Number and/or location -used to find docket information 41550
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 N64UV
NTSB Number DEN90LA097
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Avions Mudry
Aircraft Model CAP10B
Aircraft Series Identifier CAP10B
Aircraft Serial Number 175
Certified Max Gross Weight 1600
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Apr 19 1990 12:00AM
Airframe hours since last inspection 4
Airframe Hours 1037
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name UNIVERSITY OF NORTH DAKOTA
Aircraft Owner Street Address BOX 8216 UNIVERSITY STATION
Aircraft Owner City GRAND FORKS
Aircraft Owner State ND
Aircraft Owner Country
Aircraft Owner Zipcode 58202
Operator is an individual? --
Operator Name UNIVERSITY OF NORTH DAKOTA
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address BOX 8216
Operator City GRAND FORKS
Operator State ND
Operator Country
Operator Zip code 58202
Operator Code COMM
Owner has at least one certificate None
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 --
Indicates Domestic or International Flight --
Operator carrying Pax/Cargo/Mail --
Type of Flying (Per_Bus / Primary) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1000
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code GFK
Destination City
Destination State
Destination Country
Specific Phase of Flight Approach
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:30AM
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 --