Aircraft Accident/Incident Report

Ozark, Missouri 65721
Thursday, July 26, 1990 14:15 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PLT SAID THAT WHILE IN CRUISE, HE HEARD A LOUD POP FROM THE REAR OF THE HELICOPTER, THEN THE TURBINE BEGAN TO SPOOL DOWN. AN EMERENCY AUTOROTATION, RUN-ON LDG WAS ATTEMPTED WHICH RESULTED IN A TAIL ROTOR STRIKE, THEN A ROLL-OVER. POST ACCIDENT INVESTIGATION REVEALED A FAILED #2 TURBINE SHAFT BEARING.

NTSB Probable Cause Narrative

TOTAL LOSS OF ENGINE POWER DUE TO #2 TURBINE SHAFT BEARING FAILURE. A FACTOR RELATED TO THE ACCIDENT WAS: NONE SUITABLE TERRAIN.

Event Information

Type of Event Accident
Event Date 7/26/1990
Event Day of the Week Thursday
Time of Event 1415
Event Time Zone Central Daylight Time
Event City OZARK
Event State MISSOURI
Event Country --
Zipcode of the event site 65721
Event Date Year 1990
Event Date Month 7
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 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 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) -18
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 180
Variable Wind Indicator Unknown
Wind Speed (knots) 7
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 Minor
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 --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 1973
NTSB Notification Source --
NTSB Notification Date Jul 26 1990 12:00AM
NTSB Notification Time 1800
Fiche Number and/or location -used to find docket information 44530
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 N442FH
NTSB Number CHI90LA198
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 FAIRCHILD HILLER
Aircraft Model FH-1100
Aircraft Series Identifier FH-1100
Aircraft Serial Number 165
Certified Max Gross Weight 2530
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 4
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection Unknown
Date of Last Inspection --
Airframe hours since last inspection 0
Airframe Hours --
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name
Aircraft Owner Street Address
Aircraft Owner City
Aircraft Owner State
Aircraft Owner Country
Aircraft Owner Zipcode
Operator is an individual? --
Operator Name MODERN TRANSPORTATION MODE
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 500 W. RIVENDALE
Operator City SPRINGFIELD
Operator State MO
Operator Country
Operator Zip code 65810
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) Personal
Second Pilot on Board No
Departure Point Same as Event No
Departure Airport Code
Departure City NIXA
Departure State MO
Departure Country
Departure Time 1400
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code MU70
Destination City OZARK
Destination State MO
Destination Country
Specific Phase of Flight Descent
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 --