Colombia Regional Airport
Aircraft Accident/Incident Report

Columbia, Missouri 65205
Friday, June 23, 1995 15:10 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED THAT HE HEARD A MUFFLED EXPLOSION FROM THE ENGINE COMPARTMENT. THE ENGINE QUIT AND FLAMES STARTED COMING OUT OF THE ENGINE COWLING. THE CABIN BEGAN FILLING WITH SMOKE, AND OIL BEGAN SPEWING ONTO THE WINDSCREEN. THE PILOT SUCCESSFULLY EXECUTED PROCEDURES FOR IN-FLIGHT FIRE AND SMOKE IN THE COCKPIT. HE THEN MADE AN EMERGENCY LANDING IN A FIELD. HOWEVER, BEFORE LANDING, THE PILOT DELAYED GEAR EXTENSION, SO THAT HE COULD REMAIN CLEAR OF OBSTRUCTIONS AND REACH A SUITABLE LANDING AREA. THE GEAR DID NOT HAVE ENOUGH TIME TO BE FULLY EXTENDED, AND IT COLLAPSED ON TOUCHDOWN. AN EXAMINATION OF THE AIRPLANE REVEALED THAT THE DUAL MAGNETO HAD SEPARATED FROM THE ENGINE. THE BOTTOM MAGNETO HOLD DOWN CLIP WAS FOUND IN THE COWLING, BUT NEITHER THE LOCKWASHER OR NUT WERE RECOVERED. AN EXAMINATION OF THE BOTTOM SURFACE OF THE MAGNETO HOUSING REVEALED TWO LONGITUDINAL MARKINGS (CHIPPED PAINT). THE BOTTOM CLIP HAD A SPACING WHICH MATCHED THE CHIPPED PAINT ON THE MAGNETO HOUSING, AS IF THE CLIP HAD MOVED LONGITUDINALLY RELATIVE TO THE HOUSING. AN EXAMINATION OF THE TOP MAGNETO HOUSING FLANGE, WHICH HAD SEPARATED FROM THE MAGNETO, REVEALED FRACTURE SURFACE MARKINGS INDICATIVE OF FATIGUE CRACKING BEFORE THE ONSET OF OVERSTRESS SEPARATION.

NTSB Probable Cause Narrative

A LOOSE (OR MISSING) NUT AND CLIP FOR THE BOTTOM MAGNETO STUD, DUE TO INADEQUATE MAINTENANCE, AND FATIGUE FAILURE OF THE MAGNETO HOUSING FLANGE, WHICH RESTULTED IN AN OIL LEAK, ENGINE COMPARTMENT FIRE, AND A FORCED LANDING. A FACTOR RELATING TO THE ACCIDENT WAS: THE NECESSITY FOR THE PILOT TO DELAY EXTENDING THE LANDING GEAR, SO THAT THE AIRPLANE WOULD CLEAR OBSTRUCTIONS AND REACH A FAVORABLE LANDING AREA.

Event Information

Type of Event Accident
Event Date 6/23/1995
Event Day of the Week Friday
Time of Event 1510
Event Time Zone Central Daylight Time
Event City COLUMBIA
Event State MISSOURI
Event Country --
Zipcode of the event site 65205
Event Date Year 1995
Event Date Month 6
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport COLOMBIA REGIONAL AIRPORT
Event Location Nearest Airport ID COU
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 6
Degrees magnetic from airport 25
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1519 Central Daylight Time
Direction of event from weather observation facility (degrees) 205
Weather Observation Facility ID COU
Elevation of weather observation facility 889
Distance of event from weather observation facility (units?) 6
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 4800
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
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) 31
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
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 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) 1368
NTSB Notification Source --
NTSB Notification Date Jun 23 1995 12:00AM
NTSB Notification Time 2328
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 7 2000 4:19PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N39620
NTSB Number CHI95LA196
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed IFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire In-flight
Aircraft Explosion None
Aircraft Manufacturer's Full Name PIPER
Aircraft Model PA-32R
Aircraft Series Identifier PA-32R
Aircraft Serial Number 32R-7887123
Certified Max Gross Weight 3600
Aircraft Category Airplane
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 6
Number of Engines 1
Fixed gear or retractable gear Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Sep 15 1994 12:00AM
Airframe hours since last inspection 46
Airframe Hours 1766
ELT Installed Yes
ELT Activated Yes
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RICHARD A. KUEHN
Aircraft Owner Street Address 1605 ELM CT
Aircraft Owner City SHELDON
Aircraft Owner State IA
Aircraft Owner Country
Aircraft Owner Zipcode 51201
Operator is an individual? --
Operator Name
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address
Operator City
Operator State
Operator Country
Operator Zip code
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 IOW
Departure City IOWA CITY
Departure State IA
Departure Country
Departure Time 1400
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code PLK
Destination City POINT LOOKOUT
Destination State MO
Destination Country
Specific Phase of Flight Cruise
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Jan 2 2001 10:34AM
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 --