Aircraft Accident/Incident Report

Middletown, Connecticut 06457
Saturday, June 20, 1992 22:33 EDT

NTSB Narrative Summary Released at Completion of Accident

THE NORTHBOUND EMS HELICOPTER STRUCK AN UNMARKED STATIC WIRE 105 FT ABOVE THE GROUND, 1/4 MILE SOUTH OF HIS LANDING AREA. THE TAIL BOOM SEPARATED FROM THE FUSELAGE AND THE HELICOPTER DESCENDED UNCONTROLLABLY, STRIKING THE GROUND INVERTED, FATALLY INJURING ONE OCCUPANT. WHEN INTERVIEWED AFTER THE ACCIDENT, THE PILOT SAID HE DID NOT REMEMBER THE ACCIDENT. WITNESSES SAID THE NIGHT WAS DARK WITH FOG BEGINNING TO FORM, AND NO ABRUPT MANEUVERS WERE OBSERVED PRIOR TO THE WIRE STRIKE. THE INVESTIGATION FOUND THE PILOT HAD NOT MADE A RECON OF THE AREA, NOR HAD HE COMMUNICATED THAT HE HAD IDENTIFIED THE LANDING AREA WHEN THE WIRE STRIKE OCCURRED. THERE WERE NUMEROUS EMERGENCY VEHICLES IN THE AREA WITH RED AND BLUE FLASHING LIGHTS WHEN THE ACCIDENT OCCURRED. ADDITIONALLY, NEITHER THE PILOT OR HOSPITAL COMMUNICATIONS COORDINATOR WHO TOOK THE REQUEST FOR THE HELICOPTER, HAD REQUESTED ANY HAZARD INFORMATION ABOUT THE PROPOSED LANDING AREA.

NTSB Probable Cause Narrative

A WIRE STRIKE AFTER THE PILOT MADE A DECISION TO CONTINUE THE APPROACH INTO AN AREA OF HAZARDS. FACTORS RELATED TO THE ACCIDENT WERE THE FAILURE OF THE PILOT AND THE HOSPITAL COMMUNICATOR TO REQUEST ALL AVAILABLE INFORMATION ABOUT THE LANDING AREA AND ENVIRONMENTAL CONDITIONS.

Event Information

Type of Event Accident
Event Date 6/20/1992
Event Day of the Week Saturday
Time of Event 2233
Event Time Zone Eastern Daylight Time
Event City MIDDLETOWN
Event State CONNECTICUT
Event Country --
Zipcode of the event site 06457
Event Date Year 1992
Event Date Month 6
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 --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 2250 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 35
Weather Observation Facility ID HFD
Elevation of weather observation facility 12
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation EDT
Lighting Conditions Night/Dark
Lowest Ceiling Height 6000
Lowest Non-Ceiling Height 0
Sky/Lowest/Cloud Conditions Partial Obscuration
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 4
Air Temperature at event time (in degrees celsius) 19
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 29
Density Altitude (feet) --
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 1
Injury Total Fatal 1
Injury Total Minor --
Injury Total None --
Injury Total Serious 3
Injury Total All 4
Investigating Agency NTSB
NTSB Docket Number (internal use) 841
NTSB Notification Source --
NTSB Notification Date Jun 20 1992 12:00AM
NTSB Notification Time 2305
Fiche Number and/or location -used to find docket information 48359
Date of most recent change to record Dec 11 2000 3:00PM
User who most recently changed record dbo
Basic weather conditions Instrument Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N117HH
NTSB Number NYC92FA123
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed Company VFR
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name MBB
Aircraft Model BK-117
Aircraft Series Identifier BK-117
Aircraft Serial Number 7015
Certified Max Gross Weight 7055
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 3
Number of Engines 2
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection AAIP
Date of Last Inspection Jun 6 1992 12:00AM
Airframe hours since last inspection 23
Airframe Hours 3625
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name DEUTSCHE CREDIT CORP
Aircraft Owner Street Address 2333 WAUKEGAN ROAD
Aircraft Owner City DEERFIELD
Aircraft Owner State IL
Aircraft Owner Country
Aircraft Owner Zipcode 60015
Operator is an individual? --
Operator Name ROCKY MOUNTAIN HELICOPTERS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address P.O. BOX 1337
Operator City PROVO
Operator State UT
Operator Country
Operator Zip code 84603
Operator Code DYRA
Owner has at least one certificate Yes - certificate holder
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) Positioning
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code 0CT9
Departure City HARTFORD
Departure State CT
Departure Country
Departure Time 2222
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 Approach
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 --
Runway Width --
Sight Seeing flight No
Air Medical Flight Yes
Medical Flight --