Mount Hawley Auxiliary Airport
Aircraft Accident/Incident Report

Peoria, Illinois 61615
Sunday, May 27, 2012 6:30 CDT

NTSB Narrative Summary Released at Completion of Accident

The pilot reported that he was repositioning the helicopter from the ramp area to a taxiway from where he intended to depart. He stated that after hover-taxiing about 30 yards to the east-northeast he made a left turn toward the north. He reported that, during this turn, the helicopter encountered a wind gust that elevated the tail boom to the point where the forward portion of the landing skids made contact with the tarmac. The helicopter landed hard after the pilot lowered the collective in response to the loss of control. The tail boom, tail rotor, and main rotor impacted the tarmac during the hard landing. The pilot reported that there were no preimpact mechanical malfunctions or failures that would have precluded normal operation of the helicopter. A postaccident review of the available weather reports established that the prevailing wind was from 190 degrees at 5 knots. No wind gusts were reported during the 1-hour time period surrounding the accident. In the absence of any appreciable wind gusts, the pilot should have been able to maintain control of the helicopter while hover-taxiing.

NTSB Probable Cause Narrative

The pilot’s loss of control while hover-taxiing.

Event Information

Type of Event Accident
Event Date 5/27/2012
Event Day of the Week Sunday
Time of Event 630
Event Time Zone Central Daylight Time
Event City Peoria
Event State ILLINOIS
Event Country --
Zipcode of the event site 61615
Event Date Year 2012
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 404743N
Event Location Longitude 0893648W
Event Location Airport Mount Hawley Auxiliary Airport
Event Location Nearest Airport ID 3MY
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 786
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 654 Central Daylight Time
Direction of event from weather observation facility (degrees) 206
Weather Observation Facility ID KPIA
Elevation of weather observation facility 661
Distance of event from weather observation facility (units?) 8
Time Zone of the weather observation CDT
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) 23
Dew Point at event time (in degress fahrenheit) 18
Wind Direction (degrees magnetic) 190
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 5
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 METAR KPIA 271354Z 23009KT 10SM CLR 27/18 A2998 RM
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 30120
NTSB Notification Source Pilot
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Aug 30 2012 10:14PM
User who most recently changed record snyg
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N1UB
NTSB Number CEN12LA325
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Robinson Helicopter Company
Aircraft Model R44 II
Aircraft Series Identifier --
Aircraft Serial Number 11980
Certified Max Gross Weight 2500
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 Dec 1 2011 12:00AM
Airframe hours since last inspection 49
Airframe Hours 541
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name Green Aircraft Leasing, Inc.
Aircraft Owner Street Address --
Aircraft Owner City Peoria
Aircraft Owner State IL
Aircraft Owner Country USA
Aircraft Owner Zipcode 61615-2133
Operator is an individual? No
Operator Name Green Aircraft Leasing, Inc.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Peoria
Operator State IL
Operator Country USA
Operator Zip code 61615-2133
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) Personal
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 3MY
Departure City Peoria
Departure State IL
Departure Country USA
Departure Time 630
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code PVT
Destination City Joliet
Destination State IL
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jun 27 2012 9:19PM
User who most recently changed record foxt
Since inspection or accident Time of Accident
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --