Aircraft Accident/Incident Report

Williamson, West Virginia 25661
Friday, July 7, 1989 12:40 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT REPORTED THAT AS THE HELICOPTER LIFTED OFF FROM AN OPEN FILED, A SEVERE VIBRATION WAS EXPERIENCED AND THE HELICOPTER DESCENDED TO TERRAIN IMPACT. POST ACCIDENT INSPECTION REVEALED THAT THE ROTOR BLADES HAD CONTACTED AN UNMARKED WIRE WHICH CROSSED NEAR THE EDGE OF THE FIELD. A PORTION OF ONE ROTOR BLADE SEPARATED FROM THE HELICOPTER AND TRAVELED APRX 75 YARDS PRIOR TO CONTACTING A PARKED CAR.THE PLT REPORTED THAT THERE WERE NO FAILURES/MALFUNCTIONS OF THE HELICOPTER AND THAT SUN GLARE WAS NOT A FACTOR IN THE ACCIDENT.

NTSB Probable Cause Narrative

PILOT'S FAILURE TO SEE AND AVOID THE WIRE WHICH CROSSED THE END OF THE FIELD IN WHICH HE WAS TAKING OFF.

Event Information

Type of Event Accident
Event Date 7/7/1989
Event Day of the Week Friday
Time of Event 1240
Event Time Zone Eastern Daylight Time
Event City WILLIAMSON
Event State WEST VIRGINIA
Event Country --
Zipcode of the event site 25661
Event Date Year 1989
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
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 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 3000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) --
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor 1
Injury Total None 1
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 925
NTSB Notification Source --
NTSB Notification Date Jul 7 1989 12:00AM
NTSB Notification Time 1400
Fiche Number and/or location -used to find docket information 39038
Date of most recent change to record Dec 13 2000 12:50PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N51516
NTSB Number BFO89LA055
Missing Aircraft Indicator N
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 500D
Aircraft Series Identifier 500D
Aircraft Serial Number 610988D
Certified Max Gross Weight 3000
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? No
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 5
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Jan 30 1989 12:00AM
Airframe hours since last inspection 52
Airframe Hours 2152
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name APPALACHIAN TIRE COMPANY
Aircraft Owner Street Address 2907 FOURTH AVENUE
Aircraft Owner City CHARLESTON
Aircraft Owner State WV
Aircraft Owner Country
Aircraft Owner Zipcode 25312
Operator is an individual? --
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
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Unknown
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 Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1245
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code
Destination City PIKESVILLE
Destination State KY
Destination Country
Specific Phase of Flight Takeoff
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:35AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 0
Runway Length 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --