Aircraft Accident/Incident Report

Trenton, New Jersey 08628
Wednesday, October 14, 1987 15:45 EDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT AND TWO MECHANICS WERE ON A MAINTENANCE TEST FLIGHT, OPERATING AT ABOUT 300 TO 400 FEET ABOVE THE GROUND. THEY HAD STARTED TO TRACK THE ROTOR BLADES AT 130 TO 140 MPH WHEN THEY FELT A SUDDEN LEFT YAW, AND THE 'ENGINE OUT' LIGHT AND AUDIO CAME ON. THE PILOT PERFORMED AN AUTOROTATION INTO AN OPEN FIELD. WHEN THE TAILSKIDS TOUCHED DOWN, THE MAIN ROTOR BLADES CONTACTED AND SEVERED THE TAIL BOOM. THE ENGINE WAS RUN-UP SATISFACTORILY. THE FUEL SYSTEM WAS DISASSEMBLED AND INSPECTED; THERE WAS NO INDICATION OF CONTAMINATION OR OBSTRUCTION/BLOCKAGE. INVESTIGATORS DRAINED 10 GALLONS OF FUEL FROM THE HELICOPTER'S FUEL TANKS, INCLUDING ONE GALLON OF 'UNUSEABLE' FUEL. ACCORDING TO THE MANUFACTURER, THIS IS CONSIDERED A LOW LEVEL OF FUEL AND THE PILOT SHOULD HAVE BEEN PLANNING TO LAND AS SOON AS PRACTICAL.

NTSB Probable Cause Narrative

THE LOSS OF ENGINE POWER DUE TO FUEL STARVATION, AND THE PILOT'S POOR AIRCRAFT HANDLING DURING THE AUTOROTATION.

Event Information

Type of Event Accident
Event Date 10/14/1987
Event Day of the Week Wednesday
Time of Event 1545
Event Time Zone Eastern Daylight Time
Event City TRENTON
Event State NEW JERSEY
Event Country --
Zipcode of the event site 08628
Event Date Year 1987
Event Date Month 10
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 Not pertinent
Investigator's weather source Pilot
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) 10
Air Temperature at event time (in degrees celsius) 17
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 45
Variable Wind Indicator Unknown
Wind Speed (knots) 10
Wind Velocity Indicator Unknown
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 3
Injury Total Serious --
Injury Total All --
Investigating Agency FAA
NTSB Docket Number (internal use) 2669
NTSB Notification Source --
NTSB Notification Date --
NTSB Notification Time 0
Fiche Number and/or location -used to find docket information 42531
Date of most recent change to record Dec 13 2000 2:55PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N16736
NTSB Number NYC88DHD01
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 BELL
Aircraft Model 206L
Aircraft Series Identifier 206L
Aircraft Serial Number 45075
Certified Max Gross Weight 4000
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 7
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Jul 23 1987 12:00AM
Airframe hours since last inspection 59
Airframe Hours 3572
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RONSON AVIATION, INC.
Aircraft Owner Street Address MERCER COUNTY AIRPORT
Aircraft Owner City TRENTON
Aircraft Owner State NJ
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name ALLISON GAS TURBINE DIVISION
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P. O. BOX 420 SPEED CODE S-15
Operator City INDIANAPOLIS
Operator State IN
Operator Country
Operator Zip code 462060420
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) Unknown
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 1542
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 Landing
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 --