North Palm Beach County Airport
Aircraft Accident/Incident Report

West Palm Beach, Florida 33412
Thursday, May 6, 2010 12:20 EDT

NTSB Narrative Summary Released at Completion of Accident

The certificated commercial helicopter pilot reported that he was practicing autorotations with a certificated flight instructor (CFI). The CFI stated that the first autorotation "went well," and ended with a "nice cushioned landing." During the second autorotation, the commercial pilot flared 100 feet above the ground and applied cyclic control to cushion the landing. The helicopter "settled abruptly," impacted the taxiway firmly, and bounced. A main rotor blade struck and partially severed the tail boom. No preaccident mechanical anomalies were noted with the helicopter.

NTSB Probable Cause Narrative

The commercial pilot's improper flare during a simulated autorotation, which resulted in a hard landing.

Event Information

Type of Event Accident
Event Date 5/6/2010
Event Day of the Week Thursday
Time of Event 1220
Event Time Zone Eastern Daylight Time
Event City West Palm Beach
Event State FLORIDA
Event Country --
Zipcode of the event site 33412
Event Date Year 2010
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 265027N
Event Location Longitude 0801330W
Event Location Airport North Palm Beach County
Event Location Nearest Airport ID F45
Indicates whether the acc/inc occurred off or on an airport On Airport
Distance from airport in statute miles 0
Degrees magnetic from airport --
Airport Elevation 22
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 1253 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 145
Weather Observation Facility ID PBI
Elevation of weather observation facility 19
Distance of event from weather observation facility (units?) 12
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 3700
Sky/Lowest/Cloud Conditions Scattered
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) 31
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 110
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) 30
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 27532
NTSB Notification Source Ocean Helicopters
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Sep 29 2010 7:48AM
User who most recently changed record coxp
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5189K
NTSB Number ERA10CA255
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Unknown
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name HUGHES
Aircraft Model 500
Aircraft Series Identifier E
Aircraft Serial Number 0095E
Certified Max Gross Weight 2250
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 Annual
Date of Last Inspection Mar 1 2010 12:00AM
Airframe hours since last inspection --
Airframe Hours 5902
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name County of Gwinnett Georgia
Aircraft Owner Street Address --
Aircraft Owner City Lawrenceville
Aircraft Owner State GA
Aircraft Owner Country USA
Aircraft Owner Zipcode 32045
Operator is an individual? No
Operator Name County of Gwinnett Georgia
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Lawrenceville
Operator State GA
Operator Country USA
Operator Zip code 32045
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
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 F45
Departure City West Palm Beach
Departure State FL
Departure Country USA
Departure Time --
Departure Time Zone EDT
Destination Same as Local Flt crash at destination city
Destination Airport Code F45
Destination City West Palm Beach
Destination State FL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 1 2010 10:46AM
User who most recently changed record schl
Since inspection or accident Last Inspection
Event Location Runway Number and Location 26R
Runway Length 3700
Runway Width 75
Sight Seeing flight No
Air Medical Flight No
Medical Flight --