Offutt Afb Airport
Aircraft Accident/Incident Report

Omaha, Nebraska 68113
Tuesady, May 5, 1998 17:34 CDT

NTSB Narrative Summary Released at Completion of Accident

A total loss of engine power was experienced during an initial takeoff climb. A forced landing was made on a levee during which time the airplane was substantially damaged. The investigation revealed a fatigue failure of the crankshaft at the #3 main bearing journal on the Lycoming O-235-L2C engine. The nature of the failure indicated the #3 bearing spun due to undetermined reasons. The airplane had been involved in two propeller strike incidents. The engine was not overhauled after either of these incidents. Lycoming Service Letter L163C recommends removal, disassembly and inspection of the engine after propeller strikes.

NTSB Probable Cause Narrative

The fatigue failure of the crankshaft which resulted from a spun bearing and the low altitude at which the loss of engine power occurred. A factor in the accident was the embankment on which the airplane was landed.

Event Information

Type of Event Accident
Event Date 5/5/1998
Event Day of the Week Tuesday
Time of Event 1734
Event Time Zone Central Daylight Time
Event City OMAHA
Event State NEBRASKA
Event Country --
Zipcode of the event site 68113
Event Date Year 1998
Event Date Month 5
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport OFFUTT AFB
Event Location Nearest Airport ID OFF
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 3
Degrees magnetic from airport 300
Airport Elevation --
Weather Briefing Completeness Unknown
Investigator's weather source Weather Observation Facility
Time of the weather observation 1612 Central Daylight Time
Direction of event from weather observation facility (degrees) 150
Weather Observation Facility ID OFF
Elevation of weather observation facility 1048
Distance of event from weather observation facility (units?) 3
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 25000
Lowest Non-Ceiling Height 12000
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling Overcast
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) 0
Visibility (Statute Miles) 7
Air Temperature at event time (in degrees celsius) 24
Dew Point at event time (in degress fahrenheit) 5
Wind Direction (degrees magnetic) 60
Variable Wind Indicator Unknown
Wind Speed (knots) 4
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) 484
NTSB Notification Source --
NTSB Notification Date May 5 1998 12:00AM
NTSB Notification Time 1750
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Feb 16 2001 11:54AM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N24435
NTSB Number CHI98LA140
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 91: General Aviation
Type of Flight Plan filed VFR
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name Piper
Aircraft Model PA-38-112
Aircraft Series Identifier PA-38-112
Aircraft Serial Number 38-79A1121
Certified Max Gross Weight 1670
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 2
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection Dec 30 1997 12:00AM
Airframe hours since last inspection 79
Airframe Hours 6986
ELT Installed Yes
ELT Activated No
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name OFFUTT AERO CLUB
Aircraft Owner Street Address P.O. BOX 13234
Aircraft Owner City OFFUTT AFB
Aircraft Owner State NE
Aircraft Owner Country
Aircraft Owner Zipcode 68113
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 Yes
Departure Airport Code OFF
Departure City
Departure State
Departure Country
Departure Time 1730
Departure Time Zone CDT
Destination Same as Local Flt --
Destination Airport Code SUX
Destination City SIOUX CITY
Destination State IA
Destination Country
Specific Phase of Flight --
Report sent to ICAO? --
Evacuation occurred --
Date of most recent change to record Feb 20 2001 6:29PM
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 --