Aircraft Accident/Incident Report

Yuba City, California 95991
Saturday, February 21, 2004 13:55 PST

NTSB Narrative Summary Released at Completion of Accident

The gyrocopter collided with the ground in an uncontrolled descent following a loss of engine power. This was the second test flight for the gyrocopter. A witness reported that the gyrocopter flew overhead at 50 feet, with the engine sputtering. It then entered a steep descent and impacted a dry riverbed about 45 yards away. At the wreckage site, approximately 1/2 tank of fuel was present. No fuel was found in either of the two carburetors. The blades of the pusher propeller, made of carbon fiber and foam filled, were displaced from the gyrocopter and displayed cracks on the surfaces, but were otherwise intact. The main rotor was bent downward and had impacted the gear ring on the main drive shaft. The Rotax 582 engine contained oil and was rotated. The tachometer time indicated a total engine operation time of 12.2 hours. Post accident inspection of the gyrocopter revealed that a vacuum line to the pneumatic fuel pump, which is made of a soft and easily collapsible nylon reinforced vinyl material, was kinked at a 45-degree angle at its attachment fitting. The pilot had a total gyrocopter flight time of 11 hours and this was the second test flight for this gyrocopter.

NTSB Probable Cause Narrative

a loss of engine power due to the incorrect installation of the fuel line, which resulted in fuel starvation, and the pilot's failure to maintain rotor RPM, which resulted in an inflight loss of control. A factor to the accident was the pilot's lack of experience flying gyrocopters.

Event Information

Type of Event Accident
Event Date 2/21/2004
Event Day of the Week Saturday
Time of Event 1355
Event Time Zone Pacific Standard Time
Event City Yuba City
Event State CALIFORNIA
Event Country --
Zipcode of the event site 95991
Event Date Year 2004
Event Date Month 2
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 390725N
Event Location Longitude 1213619W
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1425 Pacific Standard Time
Direction of event from weather observation facility (degrees) 130
Weather Observation Facility ID MYV
Elevation of weather observation facility 1425
Distance of event from weather observation facility (units?) 2
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height 1600
Lowest Non-Ceiling Height 1600
Sky/Lowest/Cloud Conditions Thin Broken
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 4
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 70
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 4
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.81
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 17007
NTSB Notification Source FAA
NTSB Notification Date Feb 21 2004 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Dec 28 2004 12:45PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-SAC-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N96XV
NTSB Number LAX04LA132
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Gillespie
Aircraft Model Sport Copter Vortex
Aircraft Series Identifier --
Aircraft Serial Number 096
Certified Max Gross Weight --
Aircraft Category Gyrocraft
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Conditional
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 1
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Gregory Gillespie
Aircraft Owner Street Address On File
Aircraft Owner City Nevada City
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 95959
Operator is an individual? No
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City --
Operator State --
Operator Country --
Operator Zip code --
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation --
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 052
Departure City Sutter County
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone PST
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 Unknown
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Oct 26 2004 5:18PM
User who most recently changed record RICJ
Since inspection or accident Time of Accident
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --