Aircraft Accident/Incident Report

Rock Hill, South Carolina 29730
Monday, May 20, 1991 9:45 EDT

NTSB Narrative Summary Released at Completion of Accident

THE COMMERCIAL PILOT WAS FLYING AN AERIAL OBSERVATION FLIGHT. HE TURNED ON THE COCKPIT HEAT. A COPPERHEAD SNAKE EMERGED FROM THE HEAT VENT NEAR HIS FEET. AS THE PILOT MANEUVERED TOWARDS A LANDING AREA, THE SNAKE APPEARED POISED TO STRIKE. HE TRIED TO STEP ON THE SNAKE WITH HIS FOOT AND SUBSEQUENTLY LOST CONTROL OF THE HELICOPTER. THE HELICOPTER CONTACTED TREES AND TERRAIN AND WAS DESTROYED. THE SNAKE WAS NOT FOUND AFTER THE ACCIDENT. DRUG, ALCOHOL, AND SNAKE VENOM TESTING ON THE PILOT WAS NEGATIVE.

NTSB Probable Cause Narrative

THE PILOT DIVERTED HIS ATTENTION TO A POISONOUS SNAKE IN THE COCKPIT AND FAILED TO MAINTAIN CONTROL OF THE AIRCRAFT.

Event Information

Type of Event Accident
Event Date 5/20/1991
Event Day of the Week Monday
Time of Event 945
Event Time Zone Eastern Daylight Time
Event City ROCK HILL
Event State SOUTH CAROLINA
Event Country --
Zipcode of the event site 29730
Event Date Year 1991
Event Date Month 5
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 Weather Observation Facility
Time of the weather observation 950 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 30
Weather Observation Facility ID CLT
Elevation of weather observation facility 749
Distance of event from weather observation facility (units?) 13
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 600
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 4
Air Temperature at event time (in degrees celsius) 12
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 20
Variable Wind Indicator Unknown
Wind Speed (knots) 8
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 0
Intensity of Precipitation Light
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 --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1453
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 44283
Date of most recent change to record Dec 12 2000 9:57AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7507J
NTSB Number ATL91LA096
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name SCHWEIZER
Aircraft Model 269C
Aircraft Series Identifier 269C
Aircraft Serial Number S1364
Certified Max Gross Weight 2050
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 14 1991 12:00AM
Airframe hours since last inspection 12
Airframe Hours 2056
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DOOLEY HELICOPTERS, INC.
Aircraft Owner Street Address 3675 CRESTWOOD PARKWAY
Aircraft Owner City DULUTH
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 30136
Operator is an individual? --
Operator Name DOOLEY HELICOPTERS, INC.
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address 3675 CRESTWOOD PARKWAY
Operator City DULUTH
Operator State GA
Operator Country
Operator Zip code 30136
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) Aerial Observation
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code 29J
Departure City
Departure State
Departure Country
Departure Time 930
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code GMU
Destination City GREENVILLE
Destination State SC
Destination Country
Specific Phase of Flight Approach
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 --