Aircraft Accident/Incident Report

Washington, Pennsylvania 15301
Wednesday, February 22, 1989 8:30 EST

NTSB Narrative Summary Released at Completion of Accident

THE SIKORSKY S-76A WAS EN ROUTE BETWEEN TWO UNCONTROLLED HELIPORTS, OPERATING BELOW A CLOUD LAYER. THE SHIP INADVERTENTLY ENCOUNTERED REDUCED VISIBILITY AND THE PIC ATTEMPTED TO MANEUVER CLEAR OF THE AREA. SUBSEQUENTLY, THE HELICOPTER ROTATED TO THE RIGHT & SETTLING WITH POWER. THE PLT LOWERED THE COLLECTIVE AND TRIED TO FLY OUT, BUT THE SHIP CONTACTED TREES WITH THE MAIN ROTORS AND SETTLED TO THE GROUND ON THE LEFT SIDE, RECEIVING SUBSTANTIAL DAMAGE. THE PIC HAD DESCRIBED THE WEATHER TO THE SIC AS GOOD ENOUGH TO TAKE A LOOK, BUT NOT BAD ENOUGH TO CANCEL.

NTSB Probable Cause Narrative

THE PILOT'S INADVERTENT VFR FLIGHT INTO INSTRUMENT METEOROLOGICAL CONDITIONS (IMC) WHICH RESULTED IN HIS LOSS OF AIRCRAFT CONTROL. FACTORS RELATED TO THE ACCIDENT WAS: THE PILOT'S FLIGHT INTO KNOWN WEATHER, THE ADVERSE WEATHER, AND TREES AT THE ACCIDENT SIGHT.

Event Information

Type of Event Accident
Event Date 2/22/1989
Event Day of the Week Wednesday
Time of Event 830
Event Time Zone Eastern Standard Time
Event City WASHINGTON
Event State PENNSYLVANIA
Event Country --
Zipcode of the event site 15301
Event Date Year 1989
Event Date Month 2
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 Full
Investigator's weather source Weather Observation Facility
Time of the weather observation 851 Eastern Standard Time
Direction of event from weather observation facility (degrees) 67
Weather Observation Facility ID AGC
Elevation of weather observation facility 1252
Distance of event from weather observation facility (units?) 15
Time Zone of the weather observation EST
Lighting Conditions Day
Lowest Ceiling Height 500
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Unknown
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 2
Air Temperature at event time (in degrees celsius) 1
Dew Point at event time (in degress fahrenheit) -1
Wind Direction (degrees magnetic) 330
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) 29
Density Altitude (feet) --
Intensity of Precipitation Light
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 2
Injury Total None --
Injury Total Serious 2
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 1635
NTSB Notification Source --
NTSB Notification Date Feb 22 1989 12:00AM
NTSB Notification Time 916
Fiche Number and/or location -used to find docket information 40520
Date of most recent change to record Dec 13 2000 12:28PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N767SA
NTSB Number NYC89FA088
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 SIKORSKY
Aircraft Model S-76A
Aircraft Series Identifier S-76A
Aircraft Serial Number 760062
Certified Max Gross Weight 10500
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 8
Number of Engines 2
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection Nov 16 1988 12:00AM
Airframe hours since last inspection 18
Airframe Hours 2853
ELT Installed Yes
ELT Activated Unknown
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name GENERAL ELECTRIC CREDIT CORP.
Aircraft Owner Street Address 140 SHERMAN ST.
Aircraft Owner City FAIRFIELD
Aircraft Owner State CT
Aircraft Owner Country
Aircraft Owner Zipcode 06430
Operator is an individual? --
Operator Name E.I. DU PONT DE NEMOURS & CO.
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address ALLEGHENY COUNTY AIRPORT
Operator City WEST MIFFLIN
Operator State PA
Operator Country
Operator Zip code 15122
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) Executive/Corporate
Second Pilot on Board Yes
Departure Point Same as Event No
Departure Airport Code
Departure City UPPER ST. CLAIR
Departure State PA
Departure Country
Departure Time 815
Departure Time Zone EST
Destination Same as Local Flt crash at destination city
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 10:30AM
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 --