SEA07CA084

NTSB accident investigation · Boykin Rotorway Exec 162F · Camarillo, CA · March 25, 2007

Accident · No injuriesData collectionFinal report
Date
March 25, 2007, 08:55 local (15:55 UTC)
Place
Camarillo, CA
Injuries
1 uninjured
Damage
Substantial damage
Phase of flight
Maneuvering
Aircraft
N496SBBoykin Rotorway Exec 162F
Weather
Visual (VMC) · Day
Status
Completed · report May 29, 2007
Report
Approved by Office Director
Parties
FAA FSDO
FAA report
20070325003829A
Case key
65518

From the NTSB’s public API. By law, NTSB reports can’t be used as evidence in lawsuits over the accident.

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Probable cause

The pilot's failure to maintain main rotor RPM resulting in an uncontrolled descent to a hard landing. A contributing factor was his lack of experience in make and model of aircraft.

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.

Loss of control - in flightHover - in ground effect
Rotor rpm - not maintainedPilot in commandCause
Hard landingDescent - uncontrolled
Lack of total experience in type of aircraftPilot in commandFactor
Descent - uncontrolledPilot in commandCause

Analysis

The pilot said that this was his first solo flight in this make and model helicopter. He said he did weight and balance calculations before performing a preflight inspection of the aircraft. The pilot said that he performed a ground taxi, and hovered for 5 to 10 minutes, with pedal turns, to check the control capability. He flew to an open field and noted a slight drift to the left. He returned to the airport and made a normal approach to the helipad followed by a normal flare. The aircraft then started to drift to the left and would not correct with right cyclic; while trying to correct the left drift with right cyclic, the cyclic became limited by his leg and the confines of the cockpit. During an attempted go around, the pilot said that his airspeed had decreased to zero, and his rotor RPM had dropped. He said the helicopter began to descend and landed hard on the left forward skid. Subsequently the helicopter rolled onto its left side.

Factual narrative

On March 25, 2007, at approximately 0855 Pacific daylight time, a Boykin Rotorway Exec 162F experimental, homebuilt helicopter, N496SB, was substantially damaged when it landed hard and rolled onto its left side. The commercial pilot, the sole occupant on board, was not injured. The helicopter was being operated by a private individual under Title 14 CFR Part 91. Visual meteorological conditions prevailed for the local, personal flight that originated at approximately 0800. No flight plan had been filed.

The pilot said that this was his first solo flight in this make and model helicopter. He said he did weight and balance calculations before performing a preflight inspection of the aircraft. The pilot said that he performed a ground taxi, and hovered for 5 to 10 minutes, with pedal turns, to check the control capability. He flew to an open field and noted a slight drift to the left. He returned to the airport and made a normal approach to the helipad followed by a normal flare. The aircraft then started to drift to the left and would not correct with right cyclic; while trying to correct the left drift with right cyclic, the cyclic became limited by his leg and the confines of the cockpit. During an attempted go around, the pilot said that his airspeed had decreased to zero, and his rotor RPM had dropped. He said the helicopter began to descend and landed hard on the left forward skid. Subsequently the helicopter rolled onto its left side.

Aircraft

Registration
N496SB
Reported as
Boykin Rotorway Exec 162F
Category
Helicopter, amateur-built
Serial number
6992
Airframe hours
69
Engine
Rotorway Exec 162F, 145 horsepower, reciprocating
Damage
Substantial damage
Flight
Personal · Part 91
Registered owner
Stephen V. Boykin
Airworthiness certificate
Special, Experimental (Special)
Last inspection
Continuous airworthiness · May 1, 2006 · 69 hours before
Departed
CMA · Camarillo, CA
Destination
CMA
Airport
CMA · Camarillo Airport

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
50
Injuries
None
Certificate
Commercial
Airplane ratings
Multi-engine land, Single-engine land
Instrument ratings
Airplane
Medical
Class 2, Without waivers/limitations
Last flight review
September 1, 2006
Flight hours
2,303 total · 12 in this make and model · 2,100 as pilot in command · 21 in the last 90 days · 3 in the last 30 days · 1 in the last 24 hours

Weather

Conditions
Visual (VMC) · Day
Wind
360° at 4 knots
Visibility
6 statute miles
Lowest ceiling
1,200 ft overcast
Temperature
55 °F, dew point 50 °F
Altimeter
30.12 inHg
Observed at
CMA

FAA reports on this event · 1

The FAA’s own accident and incident reports, matched to the aircraft by N-number and date.

Other investigations on N496SB · 1

Matched to the same aircraft by N-number and date.