Aircraft Accident/Incident Report

Wading River, New York 11792
Wednesday, May 31, 1989 17:05 EDT

NTSB Narrative Summary Released at Completion of Accident

DURING A POWERLINE PATROL, THE HELICOPTER EXPERIENCED A LOSS OF POWER AND MADE A FORCED LANDING NEAR AN ELECTRIC PLANT IN WADING RIVER. THE PILOT SAID THAT AFTER COMPLETING A 180 DEGREE TURN HE HEARD A LOUD BANG AND THE ENGINE OUT LIGHT ILLUMINATED; THE ENGINE DID NOT RESPOND WHEN POWER WAS ADDED. HE SAID HE ENTERED AN AUTOROTATION WHILE TURNING TOWARD AN OPEN AREA. AT TOUCHDOWN THE MAIN ROTOR BLADES FLEXED DOWN AND CHOPPED THE REAR PORTION OF THE TAIL BOOM. AN ENGINE TEARDOWN WAS PERFORMED AND IT WAS CONCLUDED THAT THERE WAS COMPRESSOR FAILURE.

NTSB Probable Cause Narrative

THE PILOT'S FAILURE TO CONTROL THE RATE OF DESCENT WHICH RESULTED IN A HARD LANDING. CONTRIBUTING TO THE ACCIDENT WAS A POWER LOSS DUE TO A COMPRESSOR FAILURE.

Event Information

Type of Event Accident
Event Date 5/31/1989
Event Day of the Week Wednesday
Time of Event 1705
Event Time Zone Eastern Daylight Time
Event City WADING RIVER
Event State NEW YORK
Event Country --
Zipcode of the event site 11792
Event Date Year 1989
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 Unknown
Distance from airport in statute miles 0
Degrees magnetic from airport 0
Airport Elevation 0
Weather Briefing Completeness Unknown
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 Unknown
Sky Condition for Lowest Ceiling Unknown
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 15
Air Temperature at event time (in degrees celsius) 28
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 210
Variable Wind Indicator Unknown
Wind Speed (knots) 9
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 0
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 2
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1964
NTSB Notification Source --
NTSB Notification Date May 31 1989 12:00AM
NTSB Notification Time 2030
Fiche Number and/or location -used to find docket information 41096
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N501RS
NTSB Number NYC89LA141
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 206-L
Aircraft Series Identifier 206-L
Aircraft Serial Number 45050
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 100 Hour
Date of Last Inspection May 25 1989 12:00AM
Airframe hours since last inspection 16
Airframe Hours 8641
ELT Installed Unknown
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name BOCRE LEASING
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name AMERICAN HELICOPTER CORP.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 2065 SMITHTOWN AVE.
Operator City RONKONKOMA
Operator State NY
Operator Country
Operator Zip code 11779
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 No
Departure Airport Code FRG
Departure City FARMINGDALE
Departure State NY
Departure Country
Departure Time 0
Departure Time Zone
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 --