Lompoc Airport
Aircraft Accident/Incident Report

Lompoc, California 93437
Sunday, May 5, 2002 13:45 PDT

NTSB Narrative Summary Released at Completion of Accident

The winds were reported ast 270 degrees at 14 knots about the time when the accident occurred. The takeoff was conducted on runway 25. According to the pilot, he increased power to initiate takeoff with a corresponding increase in rotor speed from 208 rpm to above 212 rpm. The aircraft began to roll about 5 mph with the increase in power. As the aircraft lifted off, it started to "lean to the right" and he took corrective action with left stick input that for a half a second was effective. However, the aircraft conitnued in a right turn, despite the control input. The pilot reported that the control stick seemed to be stuck or frozen in place, and he was not able to move he stick to the left. The aircraft continued in the right turn, until the rotor blades struck the ground. The aircraft slid off the right, and came to rest along the right side of the runway.

NTSB Probable Cause Narrative

The pilot's failure to compensate for wind condition.

Event Information

Type of Event Accident
Event Date 5/5/2002
Event Day of the Week Sunday
Time of Event 1345
Event Time Zone Pacific Daylight Time
Event City Lompoc
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93437
Event Date Year 2002
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 343954N
Event Location Longitude 1202800W
Event Location Airport Lompoc
Event Location Nearest Airport ID LPC
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1355 Pacific Standard Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID LPC
Elevation of weather observation facility 88
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PST
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 16
Dew Point at event time (in degress fahrenheit) 9
Wind Direction (degrees magnetic) 270
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 14
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.08
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury None
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 13407
NTSB Notification Source FAA
NTSB Notification Date May 5 2002 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record May 13 2003 12:26PM
User who most recently changed record NTSB\MONR
Basic weather conditions Visual Meteorological Cond
FAA District Office Van Nuys, California

Aircraft Involved

Aircraft #1

Aircraft Registration Number N256SB
NTSB Number LAX02LA149
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 Sierra
Aircraft Model RAF 2000 GTX-SE
Aircraft Series Identifier --
Aircraft Serial Number H2-978294
Certified Max Gross Weight 1540
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 21 2002 12:00AM
Airframe hours since last inspection 10
Airframe Hours 168
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name Paul F. Sierra
Aircraft Owner Street Address 1324 Sherry Place
Aircraft Owner City Lompoc
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 93436
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 Yes
Departure Airport Code LPC
Departure City Lompoc
Departure State CA
Departure Country USA
Departure Time 1345
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 Takeoff
Report sent to ICAO? No
Evacuation occurred No
Date of most recent change to record Dec 16 2002 8:03AM
User who most recently changed record JOND
Since inspection or accident Time of Accident
Event Location Runway Number and Location 25
Runway Length 3620
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --