Aircraft Accident/Incident Report

Aiken, South Carolina 29801
Monday, September 9, 1985 12:04 EDT

NTSB Narrative Summary Released at Completion of Accident

PLT WAS MANEUVERING HELICOPTER AT LOW ALT AND INTO RISING TERRAIN. ON 3RD RIGHT TURN RACETRACK PATTERN, WITNESSES OBSERVED ACFT DESCEND SLIGHTLY, ROLL INTO A 45 DEG OR GREATER BANK AND CONTACT TREES. THE ACFT STARTED A YAWING ROTATION TO THE RIGHT AND CONTACTED THE GROUND AT ABOUT A 35 DEG ANGLE OF DESCENT WHILE TRAVELING BACKWARD. ALL SEVEN OCCUPANTS SUCCESSFULLY EXITED THE ACFT THROUGH THE RIGHT DOORS. THIS WAS A SINGLE PLT OPERATION AND THE TASK LOAD AND MISSION PRESSURES WERE HIGH.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 9/9/1985
Event Day of the Week Monday
Time of Event 1204
Event Time Zone Eastern Daylight Time
Event City AIKEN
Event State SOUTH CAROLINA
Event Country --
Zipcode of the event site 29801
Event Date Year 1985
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 0
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1138 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 305
Weather Observation Facility ID AGS
Elevation of weather observation facility 145
Distance of event from weather observation facility (units?) 21
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 0
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) 6
Air Temperature at event time (in degrees celsius) 34
Dew Point at event time (in degress fahrenheit) 22
Wind Direction (degrees magnetic) 340
Variable Wind Indicator Unknown
Wind Speed (knots) 7
Wind Velocity Indicator Unknown
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
Density Altitude (feet) 2500
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 6
Injury Total None --
Injury Total Serious 1
Injury Total All 7
Investigating Agency NTSB
NTSB Docket Number (internal use) 1261
NTSB Notification Source --
NTSB Notification Date Sep 9 1985 12:00AM
NTSB Notification Time 1200
Fiche Number and/or location -used to find docket information 28620
Date of most recent change to record Jan 2 2001 9:15AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N117SR
NTSB Number ATL85FA272
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 MBB
Aircraft Model BK-117A-1
Aircraft Series Identifier BK-117A-1
Aircraft Serial Number 7019
Certified Max Gross Weight 6283
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 9
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Jun 27 1985 12:00AM
Airframe hours since last inspection 67
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name U.S. DEPARTMENT OF ENERGY
Aircraft Owner Street Address SAVANNAH RIVER PLANT OPER.
Aircraft Owner City AIKEN
Aircraft Owner State SC
Aircraft Owner Country
Aircraft Owner Zipcode 29802
Operator is an individual? --
Operator Name WACKENHUT SERVICES, INC.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX-W
Operator City AIKEN
Operator State SC
Operator Country
Operator Zip code 29802
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) Public Use
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code PVT
Departure City AIKEN
Departure State SC
Departure Country
Departure Time 1127
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 10:36AM
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 --