Aircraft Accident/Incident Report

Spartanburg, South Carolina 29385
Sunday, May 24, 1987 12:30 EDT

NTSB Narrative Summary Released at Completion of Accident

DURING A LOCAL PLEASURE FLIGHT ABOVE THE TREETOPS, THE PASSENGER REPORTED THAT THEY HEARD A LOUD 'POP' OVER THE SOUND OF THE ENGINE. THE PLT TOLD HER THAT THEY WERE GOING DOWN AND SHE NOTICED THE MAIN ROTOR BLADES BEGAN TO TURN SLOWER THAN USUAL BEFORE THE HELO COLLIDED WITH TREES AND THEN THE GROUND. A PROLONGED POST IMPACT GROUND FIRE CONSUMED THE WRECKAGE. THOROUGH EXAMINATION OF THE FLIGHT CONTROLS, ENGINE AND TRANSMISSION ASSEMBLY DID NOT REVEAL ANY EVIDENCE OF MECHANICAL MALFUNCTION. THE FUEL AND IGNITION SYSTEM WAS COMPLETELY DESTROYED BY FIRE AND WAS UNABLE TO BE EVALUATED. ASSOCIATES OF THE PILOT STATED THAT HE USUALLY OPERATED AT APPROX 200 FT AGL.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/24/1987
Event Day of the Week Sunday
Time of Event 1230
Event Time Zone Eastern Daylight Time
Event City SPARTANBURG
Event State SOUTH CAROLINA
Event Country --
Zipcode of the event site 29385
Event Date Year 1987
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1353 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID GSP
Elevation of weather observation facility 972
Distance of event from weather observation facility (units?) 10
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 3200
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 12
Air Temperature at event time (in degrees celsius) 29
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 2000
Intensity of Precipitation Unknown
METAR weather report --
Event Highest Injury Fatal
On Ground, Fatal Injuries 0
On Ground, Minor Injuries 0
On Ground, Serious Injuries 0
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 638
NTSB Notification Source --
NTSB Notification Date May 24 1987 12:00AM
NTSB Notification Time 1432
Fiche Number and/or location -used to find docket information 33762
Date of most recent change to record Dec 13 2000 2:22PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N6408
NTSB Number ATL87FA147
Missing Aircraft Indicator N
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 HILLER
Aircraft Model UH-12D (H23)
Aircraft Series Identifier UH-12D (H2
Aircraft Serial Number 1366
Certified Max Gross Weight 2750
Aircraft Category Helicopter
Aircraft Registration Class U.S. Registered/U.S. Soil
Aircraft is a homebuilt? Unknown
Flight Crew Seats --
Cabin Crew Seats --
Passenger Seats --
Total number of seats on the aircraft 3
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 18 1986 12:00AM
Airframe hours since last inspection 47
Airframe Hours 6588
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name WILLIAM E. HUMPHRIES
Aircraft Owner Street Address RT. 1, BOX 349A
Aircraft Owner City LYMAN
Aircraft Owner State SC
Aircraft Owner Country
Aircraft Owner Zipcode 29365
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code SPA
Departure City SPARTANBURG
Departure State SC
Departure Country
Departure Time 1200
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City DUNCAN
Destination State SC
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 0
Runway Width 0
Sight Seeing flight No
Air Medical Flight No
Medical Flight --