Aircraft Accident/Incident Report

Conroe, Texas 77384
Monday, October 13, 2008 11:09 CDT

NTSB Narrative Summary Released at Completion of Accident

This report was modified on June 28, 2010. The news helicopter was en route to cover a breaking news story. Witnesses saw the helicopter flying approximately 350 feet above the ground when it nosed over and entered a sharp 70-degree bank and dove towards the ground. The helicopter was equipped with a video camera. Analysis of the video revealed a “small perturbation in yaw (nose towards the left) followed by a return back to the right of equal magnitude.” The perturbation was “no larger or faster” than other yaw motions seen previously during the flight. About two seconds later, the helicopter began a slow, smooth roll to the right and the ground was no longer visible. The helicopter came down through trees at a 72-degree impact angle. The right skid was embedded in the ground at a 25-degree angle. Both main rotor blades bore evidence of tree strikes. The clevis ends of the pitch change tubes remained attached to their respective horns. The pitch and collective control rods remained attached to their linkages, and the linkages were attached to their respective servos. Control continuity was established. One tail rotor blade was straight and the other blade was bent 90 degrees to the plane of rotation. There was no evidence of a main rotor blade strike against the horizontal stabilizer, synchronized elevator, or finlets or tail boom. Tail rotor continuity was established. Examination of the engine revealed the Pg line was only finger tight. Later pressure testing of the Pg line disclosed no leaks. The transmission, main drive shaft, and freewheeling unit were disassembled and inspected. No anomalies were noted. The observations from witnesses and analysis of the wreckage and impact evidence indicated a loss of power event. However, the investigation could not determine the reason for the loss of control.

NTSB Probable Cause Narrative

This report was modified on June 28, 2010. A loss of control for undetermined reasons.

Event Information

Type of Event Accident
Event Date 10/13/2008
Event Day of the Week Monday
Time of Event 1109
Event Time Zone Central Daylight Time
Event City Conroe
Event State TEXAS
Event Country --
Zipcode of the event site 77384
Event Date Year 2008
Event Date Month 10
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 245239N
Event Location Longitude 0902614W
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 1148 Central Daylight Time
Direction of event from weather observation facility (degrees) --
Weather Observation Facility ID IAH
Elevation of weather observation facility 46
Distance of event from weather observation facility (units?) --
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height --
Lowest Non-Ceiling Height 2600
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) 27
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 130
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 7
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 30.12
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 26463
NTSB Notification Source NTSB ROC
NTSB Notification Date --
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Jun 28 2010 2:47PM
User who most recently changed record lema
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6ZV
NTSB Number CEN09FA012
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name BELL
Aircraft Model 206
Aircraft Series Identifier L-4
Aircraft Serial Number 52046
Certified Max Gross Weight 4150
Aircraft Category Helicopter
Aircraft Registration Class --
Aircraft is a homebuilt? No
Flight Crew Seats 1
Cabin Crew Seats --
Passenger Seats 4
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Oct 6 2008 12:00AM
Airframe hours since last inspection 14
Airframe Hours 7992
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type Unknown
Aircraft Owner Name Air Sansone, LLC
Aircraft Owner Street Address 1101 W. Edgar Rd. #405C
Aircraft Owner City Linden
Aircraft Owner State NJ
Aircraft Owner Country USA
Aircraft Owner Zipcode 07036
Operator is an individual? No
Operator Name Helicopters, Inc.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 50000 Omega Dr.
Operator City Cahokia
Operator State IL
Operator Country USA
Operator Zip code 62206
Operator Code DDZA
Owner has at least one certificate Yes - certificate holder
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) Business
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code HOU
Departure City Houston
Departure State TX
Departure Country USA
Departure Time 1040
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code HOU
Destination City Houston
Destination State TX
Destination Country USA
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 14 2009 2:35PM
User who most recently changed record scoa
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --