Chino Airport
Aircraft Accident/Incident Report

Chino, California 91710
Friday, July 28, 2006 23:10 PDT

NTSB Narrative Summary Released at Completion of Accident

The helicopter collided with the ground and rolled over following a loss of directional control while hovering. The student pilot performed a 90-degree pedal turn to the right. As he completed the turn he encountered a right crosswind and began to lose control of the helicopter. The helicopter yawed to the left and drifted into a run-up area. The student asked the certified flight instructor (CFI) to take control. The CFI applied left pedal, causing the left yaw to progress into a spin. Before he realized his mistake and made a corrective input, the helicopter hit the ground and rolled onto its left side. The CFI stated that the helicopter and engine had no mechanical failures or malfunctions during the flight. The Automated Surface Observation System located at the airport reported that the winds were from 240 degrees at 8 knots.

NTSB Probable Cause Narrative

the certified flight instructor's inadequate supervision and incorrect remedial action. A factor was the student pilot's loss of control in a hovering turn.

Event Information

Type of Event Accident
Event Date 7/28/2006
Event Day of the Week Friday
Time of Event 2310
Event Time Zone Pacific Daylight Time
Event City Chino
Event State CALIFORNIA
Event Country --
Zipcode of the event site 91710
Event Date Year 2006
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 335829N
Event Location Longitude 1173812W
Event Location Airport Chino Airport
Event Location Nearest Airport ID KCNO
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 2253 Pacific Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID CNO
Elevation of weather observation facility 679
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation PDT
Lighting Conditions Night
Lowest Ceiling Height 1400
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions --
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 8
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.97
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 2
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 20643
NTSB Notification Source FAA
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 2006 12:45PM
User who most recently changed record NTSB\johb
Basic weather conditions Visual Meteorological Cond
FAA District Office Federal Aviation Administration Riverside FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N475SH
NTSB Number LAX06CA250
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 None
Aircraft Manufacturer's Full Name Robinson
Aircraft Model R-22B
Aircraft Series Identifier --
Aircraft Serial Number 4050
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 2
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 Silver State Helicopters LLC
Aircraft Owner Street Address 500 E. Cheyenne Ave.
Aircraft Owner City North Las Vegas
Aircraft Owner State NV
Aircraft Owner Country USA
Aircraft Owner Zipcode 89030
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) Instructional
Second Pilot on Board Yes
Departure Point Same as Event Yes
Departure Airport Code KCNO
Departure City Chino
Departure State CA
Departure Country USA
Departure Time 2300
Departure Time Zone --
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code KCNO
Destination City Chino
Destination State CA
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 8 2006 3:29PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location 26
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --