Aircraft Accident/Incident Report

Louisville, Georgia 30434
Friday, September 15, 1989 10:00 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED THAT DURING A LOGGING OPERATION, A JERKING MOTION WAS NOTED WHILE THE HELICOPTER WAS HOVERING AT 200 FEET. THE MOTION OCCURRED SEVERAL TIMES OVER A SHORT PERIOD OF TIME. THE PILOT EJECTED THE LONG LINE AND ATTEMPTED AN EMERGENCY LANDING, BUT THE HELICOPTER IMPACTED IN A SWAMPY AREA AND BURNED. IT WAS NOT RECOVERED, BUT THE ENGINE WAS REPORTED TO HAVE BEEN OPERATING PROPERLY THROUGHOUT THE EMERGENCY. THE PILOT SUSPECTED THAT THE FREE WHEELING UNIT HAD FAILED.

NTSB Probable Cause Narrative

AN UNDETERMINED MALFUNCTION OF THE MAIN ROTOR DRIVE SYSTEM.

Event Information

Type of Event Accident
Event Date 9/15/1989
Event Day of the Week Friday
Time of Event 1000
Event Time Zone Eastern Daylight Time
Event City LOUISVILLE
Event State GEORGIA
Event Country --
Zipcode of the event site 30434
Event Date Year 1989
Event Date Month 9
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Witness
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 0
Sky/Lowest/Cloud Conditions Clear
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) -18
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 None
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal --
Injury Total Minor --
Injury Total None 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1506
NTSB Notification Source --
NTSB Notification Date Sep 15 1989 12:00AM
NTSB Notification Time 1500
Fiche Number and/or location -used to find docket information 39851
Date of most recent change to record Dec 13 2000 1:02PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N4556D
NTSB Number ATL89LA212
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 133: Rotorcraft Ext. Load
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion Ground
Aircraft Manufacturer's Full Name SIKORSKY
Aircraft Model H-34J
Aircraft Series Identifier H-34J
Aircraft Serial Number 145668
Certified Max Gross Weight 12500
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 3000
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name CLIFTON D MCGOWAN
Aircraft Owner Street Address RT BOX 217A
Aircraft Owner City MIDWAY
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 31320
Operator is an individual? --
Operator Name CLIFTON D. MCGOWAN
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address ROUTE 1 217A
Operator City MIDWAY
Operator State GA
Operator Country
Operator Zip code 31320
Operator Code
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation External Load
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Other Work Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1000
Departure Time Zone EDT
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 Descent
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --