Aircraft Accident/Incident Report

Centre, Alabama 35960
Tuesady, June 29, 1993 8:05 CDT

NTSB Narrative Summary Released at Completion of Accident

THE PILOT REPORTED A LOSS OF ENGINE POWER DURING AERIAL APPLICATION MANEUVERS AND WAS FORCED TO LAND IN A SOYBEAN FIELD. DURING LANDING ROLL, THE PILOT INITIATED AN INTENTIONAL GROUND LOOP TO AVOID A RESIDENCE AT THE END OF THE FIELD, WHICH RESULTED IN THE COLLAPSE OF THE MAIN LANDING GEAR AND SUBSTANTIAL DAMAGE TO THE AIRPLANE. EXAMINATION OF THE ENGINE REVEALED A BROKEN CRANKSHAFT, A BROKEN MAIN CRANKSHAFT BEARING SHELL, AND EVIDENCE OF RUBBING BETWEEN THE CRANKCASE PARTING SUFACES DUE TO INSUFFICIENT TORQUE BEING PLACED ON THE CRANKCASE THROUGH BOLTS.

NTSB Probable Cause Narrative

THE FAILURE OF MAINTENANCE PERSONNEL TO PROPERLY TORQUE THE CRANKCASE THROUGH BOLTS.

Event Information

Type of Event Accident
Event Date 6/29/1993
Event Day of the Week Tuesday
Time of Event 805
Event Time Zone Central Daylight Time
Event City CENTRE
Event State ALABAMA
Event Country --
Zipcode of the event site 35960
Event Date Year 1993
Event Date Month 6
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 --
Degrees magnetic from airport --
Airport Elevation --
Weather Briefing Completeness Not pertinent
Investigator's weather source Weather Observation Facility
Time of the weather observation 1015 Central Daylight Time
Direction of event from weather observation facility (degrees) 65
Weather Observation Facility ID GAD
Elevation of weather observation facility 569
Distance of event from weather observation facility (units?) 26
Time Zone of the weather observation CDT
Lighting Conditions Day
Lowest Ceiling Height 0
Lowest Non-Ceiling Height 800
Sky/Lowest/Cloud Conditions Scattered
Sky Condition for Lowest Ceiling None
Visibility Runway Visual Range (Feet) 0
Visibility Runway Visual Value (Statute Miles) --
Visibility (Statute Miles) 10
Air Temperature at event time (in degrees celsius) 22
Dew Point at event time (in degress fahrenheit) 21
Wind Direction (degrees magnetic) 220
Variable Wind Indicator Unknown
Wind Speed (knots) 5
Wind Velocity Indicator Unknown
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) 30
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 1
Injury Total Serious --
Injury Total All --
Investigating Agency NTSB
NTSB Docket Number (internal use) 1214
NTSB Notification Source --
NTSB Notification Date Jun 29 1993 12:00AM
NTSB Notification Time 1855
Fiche Number and/or location -used to find docket information IMAGE
Date of most recent change to record Dec 11 2000 1:22PM
User who most recently changed record dbo
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N731DH
NTSB Number ATL93LA118
Missing Aircraft Indicator N
Federal Aviation Reg. Part Part 137: Agricultural
Type of Flight Plan filed None
Flight plan Was Activated? --
Damage Substantial
Aircraft Fire None
Aircraft Explosion None
Aircraft Manufacturer's Full Name CESSNA
Aircraft Model 188B
Aircraft Series Identifier 188B
Aircraft Serial Number 18802811T
Certified Max Gross Weight 4200
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 1
Number of Engines 1
Fixed gear or retractable gear Fixed
Aircraft, Type of Last Inspection 100 Hour
Date of Last Inspection May 22 1993 12:00AM
Airframe hours since last inspection 50
Airframe Hours 4221
ELT Installed No
ELT Activated Unknown
ELT Aided Location of Event Site Unknown
ELT Type --
Aircraft Owner Name TIMMONS,C. AND FROST, J.
Aircraft Owner Street Address 161 WEST 6TH AVENUE
Aircraft Owner City PITTS
Aircraft Owner State GA
Aircraft Owner Country
Aircraft Owner Zipcode 31072
Operator is an individual? --
Operator Name VAUGHN FLYING SVC. INC
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address ROUTE 1 P.O. BOX 159
Operator City CHENEYVILLE
Operator State LA
Operator Country
Operator Zip code 71325
Operator Code KENG
Owner has at least one certificate Yes - certificate holder
Other Operator of large aircraft? No
Certified for Part 133 or 137 Operation Agriculture
Operator Certificate Number --
Indicates whether an air carrier operation was scheduled or not Unknown
Indicates Domestic or International Flight Unknown
Operator carrying Pax/Cargo/Mail Unknown
Type of Flying (Per_Bus / Primary) Aerial Application
Second Pilot on Board No
Departure Point Same as Event Yes
Departure Airport Code
Departure City
Departure State
Departure Country
Departure Time 700
Departure Time Zone CDT
Destination Same as Local Flt dest & departure same, accident can occur anywhere
Destination Airport Code
Destination City
Destination State
Destination Country
Specific Phase of Flight Maneuvering
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 --