Lewiston-Nez Perce County Airp Airport
Aircraft Accident/Incident Report

Lewiston, Idaho 83501
Tuesady, July 23, 2013 11:34 PDT

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that he was conducting a full down practice autorotation which involved landing the helicopter as the final step.  During the landing, the helicopter bounced  which resulted in the main rotor striking the tail boom, severing the tail rotor drive shaft. The pilot stated that the accident could have been prevented if he had applied more forward cyclic after the helicopter had contacted the ground. The pilot reported  no preimpact mechanical malfunctions or failures that would have precluded normal operation.                     

NTSB Probable Cause Narrative

The pilot's incorrect application of the cyclic control during the landing.

Event Information

Type of Event Accident
Event Date 7/23/2013
Event Day of the Week Tuesday
Time of Event 1134
Event Time Zone Pacific Daylight Time
Event City Lewiston
Event State IDAHO
Event Country --
Zipcode of the event site 83501
Event Date Year 2013
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 462228N
Event Location Longitude 1170055W
Event Location Airport Lewiston-Nez Perce County Airp
Event Location Nearest Airport ID KLWS
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 1442
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID KLWS
Elevation of weather observation facility 1442
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
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) 32
Dew Point at event time (in degress fahrenheit) 6
Wind Direction (degrees magnetic) --
Variable Wind Indicator --
Wind Speed (knots) --
Wind Velocity Indicator Calm
Wind Gust Indicator --
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.98
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report SA 23/07/2013 18:56-> METAR KLWS 231856Z 00000KT 1
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) 31844
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 Sep 26 2013 6:34PM
User who most recently changed record coos
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N9484F
NTSB Number WPR13CA337
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 HUGHES
Aircraft Model 269B
Aircraft Series Identifier --
Aircraft Serial Number 1160291
Certified Max Gross Weight 1670
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Mar 11 2013 12:00AM
Airframe hours since last inspection --
Airframe Hours 3883
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name SIMMONS KENT B
Aircraft Owner Street Address 7028 COUGAR RIDGE DR
Aircraft Owner City LEWISTON
Aircraft Owner State ID
Aircraft Owner Country USA
Aircraft Owner Zipcode 83501-5785
Operator is an individual? No
Operator Name Odonata LLC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address --
Operator City Lewistion
Operator State ID
Operator Country USA
Operator Zip code 83501
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 --
Departure Point Same as Event Yes
Departure Airport Code KLWS
Departure City Lewiston
Departure State ID
Departure Country USA
Departure Time 1055
Departure Time Zone PDT
Destination Same as Local Flt crash at destination city
Destination Airport Code KLWS
Destination City Lewiston
Destination State ID
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Sep 25 2013 5:37PM
User who most recently changed record eckd
Since inspection or accident Last Inspection
Event Location Runway Number and Location 30
Runway Length 5000
Runway Width 100
Sight Seeing flight No
Air Medical Flight No
Medical Flight --