Bowman Field Airport
Aircraft Accident/Incident Report

Louisville, Kentucky 40207
Wednesday, May 7, 2008 9:37 EDT

NTSB Narrative Summary Released at Completion of Accident

The pilot stated that he departed the airport with the intention of completing a cross-country flight. About 10 miles from the airport, the engine started running rough, and he immediately turned back to the airport. While on short final approach, the engine stopped and the pilot executed a forced landing to a residential area. Examination of the engine revealed that the No. 5 piston (part No. 626992) failed due to a fatigue fracture. Dark deposits on the fracture indicated that the crack existed prior to the event, and the origin area was obliterated by postfracture damage. Review of service difficulty reports (SDR) for an approximate 10-year period, revealed that given the low incidence of cracking in part No. 626992 pistons, it is likely that the cracking was a result of an operational condition, and not a result of a defect in a batch of pistons.

NTSB Probable Cause Narrative

A total fatigue failure of the No. 5 piston during climb.

Event Information

Type of Event Accident
Event Date 5/7/2008
Event Day of the Week Wednesday
Time of Event 937
Event Time Zone Eastern Daylight Time
Event City Louisville
Event State KENTUCKY
Event Country --
Zipcode of the event site 40207
Event Date Year 2008
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude 381324N
Event Location Longitude 0853929W
Event Location Airport Bowman Field
Event Location Nearest Airport ID LOU
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 10
Degrees magnetic from airport --
Airport Elevation 546
Weather Briefing Completeness --
Investigator's weather source Weather Observation Facility
Time of the weather observation 943 Eastern Daylight Time
Direction of event from weather observation facility (degrees) 270
Weather Observation Facility ID LOU
Elevation of weather observation facility 546
Distance of event from weather observation facility (units?) 1
Time Zone of the weather observation EDT
Lighting Conditions Day
Lowest Ceiling Height 10000
Lowest Non-Ceiling Height --
Sky/Lowest/Cloud Conditions Clear
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) --
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 20
Dew Point at event time (in degress fahrenheit) 11
Wind Direction (degrees magnetic) 200
Variable Wind Indicator Wind direction could be determined
Wind Speed (knots) 8
Wind Velocity Indicator --
Wind Gust Indicator Not Gusting
Wind Gust (knots) --
Altimeter Setting at event time (in. Hg) 29.89
Density Altitude (feet) --
Intensity of Precipitation --
METAR weather report --
Event Highest Injury Serious
On Ground, Fatal Injuries --
On Ground, Minor Injuries --
On Ground, Serious Injuries --
Injury Total Fatal --
Injury Total Minor --
Injury Total None --
Injury Total Serious 1
Injury Total All 1
Investigating Agency NTSB
NTSB Docket Number (internal use) 24441
NTSB Notification Source FAA Southern Region ROC
NTSB Notification Date May 7 2008 12:00AM
NTSB Notification Time --
Fiche Number and/or location -used to find docket information --
Date of most recent change to record Oct 20 2008 2:16PM
User who most recently changed record grer
Basic weather conditions Visual Meteorological Cond
FAA District Office Louisville FSDO

Aircraft Involved

Aircraft #1

Aircraft Registration Number N42116
NTSB Number MIA08LA097
Missing Aircraft Indicator --
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed None
Flight plan Was Activated? No
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 182L
Aircraft Series Identifier --
Aircraft Serial Number 18258858
Certified Max Gross Weight 2800
Aircraft Category Airplane
Aircraft Registration Class --
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 Retractable
Aircraft, Type of Last Inspection Annual
Date of Last Inspection Oct 1 2007 12:00AM
Airframe hours since last inspection 39
Airframe Hours 2135
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site No
ELT Type Unknown
Aircraft Owner Name William M Lebre
Aircraft Owner Street Address --
Aircraft Owner City Louisville
Aircraft Owner State KY
Aircraft Owner Country USA
Aircraft Owner Zipcode 40220
Operator is an individual? Yes
Operator Name William M Lebre
Operator Same as Owner? Yes
Operator Is Doing Business As --
Operator Address Same as Owner? Yes
Operator Street Address --
Operator City Louisville
Operator State KY
Operator Country USA
Operator Zip code 40220
Operator Code --
Owner has at least one certificate None
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation --
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 Yes
Departure Airport Code LOU
Departure City LOUISVILLE
Departure State KY
Departure Country USA
Departure Time 915
Departure Time Zone EDT
Destination Same as Local Flt --
Destination Airport Code BMG
Destination City BLOOMINGTON
Destination State IN
Destination Country USA
Specific Phase of Flight Emergency landing
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Oct 20 2008 2:16PM
User who most recently changed record grer
Since inspection or accident Last Inspection
Event Location Runway Number and Location N/A
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --