Aircraft Accident/Incident Report

Kihei, Hawaii 96753
Friday, July 7, 2006 9:10 HST

NTSB Narrative Summary Released at Completion of Accident

The helicopter's main rotor blades struck a tree while in a hover. The purpose of the flight was to conduct animal control. Once the animal had been identified and neutralized, the pilot was directed to remove the animal. He landed the helicopter near the animal, which was in a confined area with rolling terrain, thick low trees, high grass, and lava rock outcroppings. About 15 feet above the ground, the main rotor blades contacted a tree off to the right rear side of the helicopter. The pilot repositioned the helicopter about 100 feet to another landing site and landed normally. He reported the main rotor "blades strike" to the company and waited for the Director of Maintenance (DOM) to arrive and assess the damage to the main rotor blades. The DOM determined that the helicopter could be flown back to home base. After the helicopter returned to base, maintenance personnel removed and inspected the main rotor blades. All five of the main rotor blades sustained substantial structural damage. Maintenance personnel referenced the maintenance manual and determined that the dents/depressions in the main rotor blades were beyond serviceable limits and could not be repaired.

NTSB Probable Cause Narrative

the pilot's failure to maintain an adequate clearance from obstructions, which led to a main rotor blade strike.

Event Information

Type of Event Accident
Event Date 7/7/2006
Event Day of the Week Friday
Time of Event 910
Event Time Zone Hawaii Standard Time
Event City Kihei
Event State HAWAII
Event Country --
Zipcode of the event site 96753
Event Date Year 2006
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 204604N
Event Location Longitude 1562334W
Event Location Airport --
Event Location Nearest Airport ID --
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness --
Investigator's weather source Unknown
Time of the weather observation
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID --
Elevation of weather observation facility --
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation --
Lighting Conditions Day
Lowest Ceiling Height 4500
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) --
Variable Wind Indicator Variable
Wind Speed (knots) --
Wind Velocity Indicator --
Wind Gust Indicator Unknown
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) --
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 20555
NTSB Notification Source FAA
NTSB Notification Date Jul 7 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 31 2006 8:45AM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office WP-HNL-FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N611WA
NTSB Number LAX06CA227
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? Yes
Damage Substantial
Aircraft Fire None
Aircraft Explosion --
Aircraft Manufacturer's Full Name Hughes
Aircraft Model 369D
Aircraft Series Identifier --
Aircraft Serial Number 590517D
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 --
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 Windward Aviation, Inc.
Aircraft Owner Street Address --
Aircraft Owner City Kahului
Aircraft Owner State HI
Aircraft Owner Country USA
Aircraft Owner Zipcode --
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 WVXA
Owner has at least one certificate --
Other Operator of large aircraft? --
Certified for Part 133 or 137 Operation External Load
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) Other Work Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code OGGA
Departure City Kahului
Departure State HI
Departure Country USA
Departure Time 810
Departure Time Zone HST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code OGG
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Aug 17 2006 2:36PM
User who most recently changed record COOS
Since inspection or accident --
Event Location Runway Number and Location NA
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --