Aircraft Accident/Incident Report

Sonora, California 95370
Tuesady, October 1, 1991 12:05 PDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT STATED IN HIS WRITTEN REPORT THAT HE REFUELED THE AIRCRAFT PRIOR TO DEPARTURE WITH ABOUT 19 GALLONS OF AVIATION FUEL. ACCORDING TO THE PILOT, HE DEPARTED COLUMBIA AND CLIMBED TO ABOUT 10,000 FEET WHILE HE FLEW AROUND THE SIERRA NEVADA MOUNTAINS. AT ABOUT 1200 HOURS, HE TURNED AND HEADED BACK TO COLUMBIA. HE REPORTED THAT THE ENGINE BEGAN TO SURGE AND THE REAR CYLINDER EGT INDICATED A POTENTIAL FUEL STARVATION PROBLEM. THE ENGINE WAS NOT PRODUCING SUFFICIENT POWER TO MAINTAIN FLIGHT AND THE PILOT SET UP FOR A FORCED LANDING IN A MOUNTAIN MEADOW. HE STATED THAT THE ENGINE CONTINUED TO SURGE, EVEN AFTER THE THROTTLE WAS REDUCED TO IDLE, WHICH CAUSED THE AIRCRAFT TO OVER SHOOT HIS INTENDED LANDING SPOT. THE AIRCRAFT COLLIDED WITH TREES AT THE FAR END OF THE MEADOW. THE PILOT SAID THE AIRCRAFT IS NOT EQUIPPED WITH AN ELECTRIC BOOST PUMP. HE SPECULATED THAT THE ENGINE POWER PROBLEM WAS DUE TO EITHER VAPOR LOCK OR A MALFUNCTION OF THE ENGINE DRIVEN PUMP.

NTSB Probable Cause Narrative

FUEL STARVATION DUE TO VAPOR LOCK.

Event Information

Type of Event Accident
Event Date 10/1/1991
Event Day of the Week Tuesday
Time of Event 1205
Event Time Zone Pacific Daylight Time
Event City SONORA
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95370
Event Date Year 1991
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport
Event Location Nearest Airport ID
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 Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
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) 20
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 320
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1815
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 45693
Date of most recent change to record Dec 12 2000 10:48AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N860CD
NTSB Number LAX92LA002
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 CANO
Aircraft Model AVID FLYER
Aircraft Series Identifier AVID FLYER
Aircraft Serial Number 860
Certified Max Gross Weight 1050
Aircraft Category Airplane
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Yes
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 Annual
Date of Last Inspection Nov 1 1990 12:00AM
Airframe hours since last inspection 65
Airframe Hours 65
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name CANO, DAVID
Aircraft Owner Street Address 678 5TH AVE NW
Aircraft Owner City KALISPEL
Aircraft Owner State MT
Aircraft Owner Country
Aircraft Owner Zipcode 59901
Operator is an individual? --
Operator Name DEREGO, CHARLES A.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 14214 ADLER LANE
Operator City SONORA
Operator State CA
Operator Country
Operator Zip code
Operator Code
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 022
Departure City COLUMBIA
Departure State CA
Departure Country
Departure Time 1140
Departure Time Zone PDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Cruise
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 --