Aircraft Accident/Incident Report

Kansas City, Missouri 64129
Tuesady, December 1, 1992 20:51 CST

NTSB Narrative Summary Released at Completion of Accident

WHILE ON A ROUTINE NIGHT PATROL THE POLICE HELICOPTER EXPERIENCED THE LOSS OF THE LARGE CLEVIS PIN IN THE CLUTCH CONTROL SPRING ASSEMBLY. THE LOSS OF THE SPRING ASSEMBLY DISCONNECTED THE POWERPLANT FROM THE ROTOR SYSTEM. THE PILOT INITIATED AN AUTOROTATION. THE TERRAIN UNDERLYING THE LANDING ATTEMPT WAS A RAVINE WITH HIGH TREES. THE PILOT WAS NOT ABLE TO JUDGE THE DISTANCE BETWEEN THE HELICOPTER AND THE GROUND TO SUCCESSFULLY EFFECT AN AUTOROTATIONAL LANDING.

NTSB Probable Cause Narrative

THE PILOT-IN-COMMAND'S MISJUDGING THE DISTANCE DURING THE AUTOROTATION.

Event Information

Type of Event Accident
Event Date 12/1/1992
Event Day of the Week Tuesday
Time of Event 2051
Event Time Zone Central Standard Time
Event City KANSAS CITY
Event State MISSOURI
Event Country --
Zipcode of the event site 64129
Event Date Year 1992
Event Date Month 12
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 2105 Central Standard Time
Direction of event from weather observation facility (degrees) 320
Weather Observation Facility ID MCI
Elevation of weather observation facility 1026
Distance of event from weather observation facility (units?) 20
Time Zone of the weather observation CST
Lighting Conditions Night/Dark
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) 6
Dew Point at event time (in degress fahrenheit) -6
Wind Direction (degrees magnetic) 240
Variable Wind Indicator Unknown
Wind Speed (knots) 12
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 20
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 0
Injury Total Fatal 2
Injury Total Minor --
Injury Total None --
Injury Total Serious --
Injury Total All 2
Investigating Agency NTSB
NTSB Docket Number (internal use) 629
NTSB Notification Source --
NTSB Notification Date Dec 1 1992 12:00AM
NTSB Notification Time 2130
Fiche Number and/or location -used to find docket information 48026
Date of most recent change to record Dec 11 2000 3:29PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N640KC
NTSB Number CHI93GA046
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Destroyed
Aircraft Fire Ground
Aircraft Explosion None
Aircraft Manufacturer's Full Name SCHWEIZER
Aircraft Model 269C
Aircraft Series Identifier 269C
Aircraft Serial Number S1474
Certified Max Gross Weight 2400
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 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Oct 30 1992 12:00AM
Airframe hours since last inspection 74
Airframe Hours 2174
ELT Installed No
ELT Activated Unknown
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 BOARD OF POLICE COMMISSIONERS
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address 1125 LOCUST
Operator City KANSAS CITY
Operator State MO
Operator Country
Operator Zip code 64106
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) Public Use
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 2030
Departure Time Zone CST
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code 3MO1
Destination City
Destination State
Destination Country
Specific Phase of Flight Cruise
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 No
Medical Flight --