- Date
- May 5, 2002, 13:45 local (20:45 UTC)
- Place
- Lompoc, CA
- Injuries
- 2 uninjured
- Damage
- Substantial damage
- Phase of flight
- Takeoff
- Aircraft
- N256SBSierra RAF 2000 GTX-SE
- Weather
- Visual (VMC) · Day
- Status
- Completed · report May 13, 2003
- Report
- Approved by Office Director
- Parties
- Federal Aviation Administration - FSDO
- FAA report
- 20020505007799A
- Case key
- 54637
From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.
On this page
Probable cause
The pilot's failure to compensate for wind condition.
Sequence of events
NTSB’s coding before 2008: each occurrence and phase of flight, and the causes and factors under it. The codes are defined in NTSB’s coding manual.
Analysis
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.
Factual narrative
On May 5, 2002, at 1345 Pacific daylight time, a Sierra RAF 2000 GTX-SE, N256SB, experienced rotor contact with the ground and the vertical fin during takeoff at the Lompoc, California, airport. The private-certificated pilot and one passenger were not injured. The experimental, amateur-built, gyrocopter was substantially damaged. The gyrocopter was being operated by the owner under 14 CFR Part 91 and was departing for a local area personal flight. Visual meteorological conditions prevailed and no flight plan was filed.
The winds were reported ast 270 degrees at 14 knots 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 the 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.
Aircraft
- Registration
- N256SB
- Reported as
- Sierra RAF 2000 GTX-SE
- Category
- Gyroplane, amateur-built
- Serial number
- H2-978294
- Airframe hours
- 168
- Engine
- Subaru EJ22, 130 horsepower, reciprocating
- Damage
- Substantial damage
- Flight
- Personal · Part 91
- Registered owner
- Paul F. Sierra
- Airworthiness certificate
- Special, Experimental (Special)
- Last inspection
- Annual · January 21, 2002 · 10 hours before
- Departed
- LPC · Lompoc, CA
- Airport
- LPC · Lompoc, runway 25, 3,620 × 100 ft, asphalt
Matched to the registry by N-number and the event date; the registry’s history has gaps, so older matches can be wrong. Compare the reported make and model.
Flight crew
As NTSB recorded them. NTSB leaves out names.
- Role
- Pilot
- Age
- 46
- Injuries
- None
- Certificate
- Private
- Medical
- Class 3, Valid Medical--no waivers/lim.
- Seat
- Left
- Flight hours
- 150 total · 99 as pilot in command · 4 in the last 90 days · 4 in the last 30 days
Weather
- Conditions
- Visual (VMC) · Day
- Wind
- 270° at 14 knots
- Visibility
- 10 statute miles
- Lowest ceiling
- None
- Temperature
- 61 °F, dew point 48 °F
- Altimeter
- 30.07 inHg
- Observed at
- LPC
Docket · 1
The files NTSB released with the investigation on March 20, 2003, on NTSB’s docket system: statements, records, photos and specialists’ reports. 1.1 MB in all.
FAA reports on this event · 1
The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.