Aircraft Accident/Incident Report

Gibson, Louisiana 70356
Saturday, November 5, 2005 15:40 CDT

NTSB Narrative Summary Released at Completion of Accident

The 2,000-hour commercial pilot was performing initial hover test flights in a homebuilt helicopter he had recently acquired for parts. The pilot reported that approximately 30-minutes into the first test flight, the liquid cooled engine began to overheat. The pilot added that he elected to land and shut the engine down to investigate. He observed water leaking from a hose clamp on the engine cooling system. He tightened the clamp and waited for the engine to cool down. After checking for leaks, the pilot elected to continue with the test flight. After another 20-minutes of additional hovering, the pilot proceeded to stay in a traffic pattern to perform takeoffs and landings. While in the traffic pattern at his 200 acre ranch, the pilot neglected to monitor the engine instruments and while on the fifth approach, while the helicopter was at about 300 feet agl, the engine lost power. The pilot initiated an autorotation; however the helicopter was unable to clear a tree line, and the main rotor blades collided with a tree. The helicopter impacted the ground hard, coming to rest against a tree. At the time of the accident, the pilot estimated that the winds were from 150 degrees at 10 knots. The reason for the loss of engine power could not be determined.

NTSB Probable Cause Narrative

The loss of engine power for undetermined reasons. A contributing factor was the lack of suitable terrain for the forced landing.

Event Information

Type of Event Accident
Event Date 11/5/2005
Event Day of the Week Saturday
Time of Event 1540
Event Time Zone Central Daylight Time
Event City Gibson
Event State LOUISIANA
Event Country --
Zipcode of the event site 70356
Event Date Year 2005
Event Date Month 11
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 293745N
Event Location Longitude 0905645W
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 Weather Observation Facility
Time of the weather observation 1550 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID HUM
Elevation of weather observation facility 10
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height 2500
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 26
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 150
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 10
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.96
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Minor
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor 1
Injury Total None --
Injury Total Serious --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 19174
NTSB Notification Source Baton Rouge FSDO
NTSB Notification Date Nov 5 2005 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information DMS
Date of most recent change to record Feb 28 2006 12:35PM
User who most recently changed record NTSB\JOHB
Basic weather conditions Visual Meteorological Cond
FAA District Office Baton Rouge, Louisiana

Aircraft Involved

Aircraft #1

Aircraft Registration Number N5436X
NTSB Number DFW06CA020
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 Deussen Alexander II
Aircraft Model Rotorway Exec
Aircraft Series Identifier --
Aircraft Serial Number 1
Certified Max Gross Weight 1500
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? Yes
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 58
ELT Installed --
ELT Activated --
ELT Aided Location of Event Site --
ELT Type --
Aircraft Owner Name Frankie Gilbert
Aircraft Owner Street Address 4532 North Bayou Black Drive
Aircraft Owner City Gibson
Aircraft Owner State LA
Aircraft Owner Country USA
Aircraft Owner Zipcode 70356
Operator is an individual? No
Operator Name Frankie Gilbert
Operator Same as Owner? No
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 --
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 --
Departure City Gibson
Departure State LA
Departure Country USA
Departure Time --
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code --
Destination City --
Destination State --
Destination Country --
Specific Phase of Flight Maneuvering
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Dec 6 2005 1:19PM
User who most recently changed record CASH
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 --