Fresno Chandler Executive Airport
Aircraft Accident/Incident Report

Fresno, California 93717
Wednesday, June 28, 2006 18:00 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot lost tail rotor authority control of the helicopter during a downwind hovering turn. The helicopter was parked facing a downwind direction and the pilot estimated the winds at 13 knots. The pilot positioned the helicopter to a hover about 4-5 feet above ground level (agl) and initiated a left pedal turn into the wind. He felt the tail rotor start to shudder, and the helicopter began yawing to the left. The helicopter then entered a spin and started to gain altitude. After three spins, the pilot executed a hovering autorotation at 15 feet agl. The left skid contacted the ground first. The helicopter then nosed forward about 30 degrees, and the main rotor blades hit the ground. The pilot applied aft cyclic, and the helicopter touched down level on both skids. The helicopter came to rest on a sloped area between the taxiway and runway. The pilot stated that the helicopter and engine had no mechanical failures or malfunctions during the flight.

NTSB Probable Cause Narrative

the pilot's failure to maintain directional control following a loss of tail rotor effectiveness while in a downwind hover.

Event Information

Type of Event Accident
Event Date 6/28/2006
Event Day of the Week Wednesday
Time of Event 1800
Event Time Zone Pacific Daylight Time
Event City Fresno
Event State CALIFORNIA
Event Country --
Zipcode of the event site 93717
Event Date Year 2006
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 364393N
Event Location Longitude 1194918W
Event Location Airport Fresno Chandler Executive
Event Location Nearest Airport ID FCH
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 1756 Pacific Daylight Time
Direction of event from weather observation facility (degrees) 48
Weather Observation Facility ID FAT
Elevation of weather observation facility 336
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation PDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 10000
Sky/Lowest/Cloud Conditions Few
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) 32
Dew Point at event time (in degress fahrenheit) 12
Wind Direction (degrees magnetic) 250
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 6
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.95
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 20442
NTSB Notification Source FAA
NTSB Notification Date Jun 28 2006 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Oct 3 2006 2:46PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP- FSDO- Fresno

Aircraft Involved

Aircraft #1

Aircraft Registration Number N52EP
NTSB Number LAX06CA221
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-44
Aircraft Series Identifier --
Aircraft Serial Number 0077
Certified Max Gross Weight 2400
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection May 1 2006 12:00AM
Airframe hours since last inspection --
Airframe Hours 1805
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Joe R. Rascon
Aircraft Owner Street Address --
Aircraft Owner City Kerman
Aircraft Owner State CA
Aircraft Owner Country USA
Aircraft Owner Zipcode 93630
Operator is an individual? Yes
Operator Name --
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Kerman
Operator State CA
Operator Country USA
Operator Zip code 93630
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 FCH
Departure City Fresno
Departure State CA
Departure Country USA
Departure Time 1800
Departure Time Zone --
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code FCH
Destination City Fresno
Destination State CA
Destination Country USA
Specific Phase of Flight Hover - in ground effect
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jul 27 2006 2:47PM
User who most recently changed record COOS
Since inspection or accident Last Inspection
Event Location Runway Number and Location 12
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --