Raleigh East Airport
Aircraft Accident/Incident Report

Knightdale, North Carolina 27545
Wednesday, September 28, 1994 9:47 EDT

NTSB Narrative Summary Released at Completion of Accident

THE FLIGHT WAS DELAYED BECAUSE OF A FOG LAYER AT THE AIRPORT. ACCORDING TO WITNESSES AT THE AIRPORT, THE HELICOPTER DEPARTED WITHOUT INCIDENT. A MINUTE INTO THE FLIGHT THEY HEARD THE PILOT, ALSO A HELICOPTER CFI, SAY, 'HEY! I'VE GOT A...'. NO OTHER RADIO TRANSMISSIONS WERE HEARD. A WITNESS LOCATED NEAR THE ACCIDENT SITE RECALLED WATCHING THE HELICOPTER FISHTAIL, AND HEARD A SPUTTERING SOUND COMING FROM THE HELICOPTER. RADAR DATA DEPICTED THE HELICOPTER AT 700 FT MSL, FLYING IN AN EASTERLY DIRECTION, AND THEN REVERSE COURSE TO A WESTERLY HEADING, WITHIN 23 SECS OF COVERAGE. THE MAIN FUSELAGE IMPACTED THE GROUND IN A WOODED AREA; OTHER DEBRIS FROM THE HELICOPTER WAS SCATTERED OVER AN AREA 800 FEET LONG AND 100 FEET WIDE. A POST IMPACT FIRE FURTHER DAMAGED THE AIRFRAME. EXAMINATION OF THE SEPARATED TAILCONE AND FUSELAGE COMPONENTS SHOWED EVIDENCE OF INFLIGHT MAIN ROTOR BLADE CONTACT; THE WRECKAGE EXAMINATION ALSO SHOWED SIGNS OF MAST BUMPING.

NTSB Probable Cause Narrative

DIVERGENCE OF THE MAIN ROTOR FROM ITS NORMAL PLANE OF ROTATION FOR AN UNDETERMINED REASON(S) RESULTING IN ROTOR BLADE CONTACT WITH THE TAILCONE.

Event Information

Type of Event Accident
Event Date 9/28/1994
Event Day of the Week Wednesday
Time of Event 947
Event Time Zone Eastern Daylight Time
Event City KNIGHTDALE
Event State NORTH CAROLINA
Event Country --
Zipcode of the event site 27545
Event Date Year 1994
Event Date Month 9
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport RALEIGH EAST
Event Location Nearest Airport ID W17
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 2
Degrees magnetic from airport 270
Airport Elevation 313
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 954 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 280
Weather Observation Facility ID RDU
Elevation of weather observation facility 437
Distance of event from weather observation facility (units?) 18
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 300
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Broken
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 0.75
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) 17
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Variable
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) 450
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 --
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 1442
NTSB Notification Source --
NTSB Notification Date Sep 28 1994 12:00AM
NTSB Notification Time 1100
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 6 2000 12:12PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N83112
NTSB Number ATL94FA179
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 ROBINSON
Aircraft Model R-22B
Aircraft Series Identifier R-22B
Aircraft Serial Number 2446
Certified Max Gross Weight 1370
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 Aug 30 1994 12:00AM
Airframe hours since last inspection 48
Airframe Hours 124
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TRIANGLE HELICOPTER LLC
Aircraft Owner Street Address 3424 BELLEVUE RD
Aircraft Owner City RALIEGH
Aircraft Owner State NC
Aircraft Owner Country
Aircraft Owner Zipcode 27609
Operator is an individual? --
Operator Name RALEIGH HELICOPTERS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address HIGHWAY 64 EAST
Operator City KNIGHTDALE
Operator State NC
Operator Country
Operator Zip code 27545
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 W17
Departure City
Departure State
Departure Country
Departure Time 945
Departure Time Zone EDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code W17
Destination City
Destination State NC
Destination Country
Specific Phase of Flight Climb
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
User who most recently changed record dbo
Since inspection or accident --
Event Location Runway Number and Location 19
Runway Length 3000
Runway Width 60
Sight Seeing flight No
Air Medical Flight No
Medical Flight --