Rosamond Skypark Airport
Aircraft Accident/Incident Report

Rosamond, California 93560
Tuesady, September 11, 2007 15:00 PDT

NTSB Narrative Summary Released at Completion of Accident

After hover-taxiing to his normal parking spot in strong gusting variable winds, the pilot landed the helicopter. He then rolled the throttle to flight-idle, frictioned the collective down, started the timing for the required two-minute turbine cool down, and leaned forward to tighten the friction for the cyclic. At that point, the helicopter, which still had considerable energy in its slowing main rotor, was hit by a strong gust of wind. The helicopter became momentarily airborne, and collided with a nearby hangar. According to witnesses, the winds at the airport were gusting between the hangars, resulting in sudden strong gusts coming from varying directions.

NTSB Probable Cause Narrative

The pilot's inadequate compensation for gusting variable winds encountered after landing. Factors include gusting, suddenly shifting winds, and a hangar near the spot where the helicopter had landed.

Event Information

Type of Event Accident
Event Date 9/11/2007
Event Day of the Week Tuesday
Time of Event 1500
Event Time Zone Pacific Daylight Time
Event City Rosamond
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93560
Event Date Year 2007
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? Yes
Event Location Latitude 345215N
Event Location Longitude 1181233W
Event Location Airport Rosamond Skypark
Event Location Nearest Airport ID L00
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 Unknown
Time of the weather observation 1500 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 180
Weather Observation Facility ID KWJR
Elevation of weather observation facility 2351
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation PDT
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) 36
Dew Point at event time (in degress fahrenheit) 0
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 14
Wind Velocity Indicator --
Wind Gust Indicator Gusting
Wind Gust (knots) 22
Altimeter Setting at event time (in. Hg) 29.98
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency --
NTSB Docket Number (internal use) 22552
NTSB Notification Source FAA Operations Center
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Nov 29 2007 8:02AM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N205LT
NTSB Number SEA07CA258
Missing Aircraft Indicator --
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 --
Aircraft Manufacturer's Full Name Bell
Aircraft Model 206-B2
Aircraft Series Identifier --
Aircraft Serial Number 1459
Certified Max Gross Weight --
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft --
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection --
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours --
ELT Installed --
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name William P. Francis
Aircraft Owner Street Address --
Aircraft Owner City --
Aircraft Owner State --
Aircraft Owner Country --
Aircraft Owner Zipcode --
Operator is an individual? No
Operator Name William P. Francis
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Rosamond
Operator State CA
Operator Country USA
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 --
Departure Point Same as Event No
Departure Airport Code KTSP
Departure City Tehachapi
Departure State CA
Departure Country USA
Departure Time --
Departure Time Zone --
Destination Same as Local Flt crash at destination city
Destination Airport Code L00
Destination City Rosamond
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 12 2007 10:11PM
User who most recently changed record STAM
Since inspection or accident --
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --