Trenton Airport
Aircraft Accident/Incident Report

Osgood, Missouri 64683
Friday, July 31, 1987 15:45 CDT

NTSB Narrative Summary Released at Completion of Accident

DURING AN AERIAL APPLICATION OPERATION, PILOT EXPERIENCED PARTIAL POWER LOSS AND VIBRATION, FOLLOWED BY A LOUD EXPLOSIVE SOUND AND TOTAL LOSS OF POWER. AN EMERGENCY LDG WAS MADE FOLLOWED BY A NOSE OVER. POSTACCIDENT INSPECTION REVEALED THE ENTIRE PROPELLER ASSEMBLY, ONE CYLINDER, AND PART OF THE CRANKSHAFT WERE MISSING. THIS COMPLETE ASSEMBLY WAS FOUND ABOUT THREE MONTHS LATER, APPROXIMATELY ONE QUARTER MILE FROM THE ACCIDENT SCENE. MET LAB REPORT ON PORTION OF CRANKSHAFT THAT REMAINED WITH ACFT INDICATED NO UNUSUAL WEAR OR DAMAGE THAT MIGHT CAUSE ITS FAILURE. THE PIC STATED THAT AFTER THE EXPLOSION, WHICH BLEW THE FRONT HOPPER LOADING LID OFF, THE SPRAY MATERIAL COVERED THE WINDSHIELD MAKING VISIBILITY DIFFICULT.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 7/31/1987
Event Day of the Week Friday
Time of Event 1545
Event Time Zone Central Daylight Time
Event City OSGOOD
Event State MISSOURI
Event Country --
Zipcode of the event site 64683
Event Date Year 1987
Event Date Month 7
MidAir Collision Indicator No
On Ground Collision occurred ? No
Event Location Latitude
Event Location Longitude
Event Location Airport TRENTON
Event Location Nearest Airport ID TRX
Indicates whether the acc/inc occurred off or on an airport Off Airport/Airstrip
Distance from airport in statute miles 15
Degrees magnetic from airport 45
Airport Elevation 756
Weather Briefing Completeness Unknown
Investigator's weather source Pilot
Time of the weather observation 0
Direction of event from weather observation facility (degrees) 0
Weather Observation Facility ID
Elevation of weather observation facility 0
Distance of event from weather observation facility (units?) 0
Time Zone of the weather observation
Lighting Conditions Day
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) 20
Air Temperature at event time (in degrees celsius) 32
Dew Point at event time (in degress fahrenheit) -18
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Light and Variable
Wind Gust Indicator Unknown
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 1500
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) 1891
NTSB Notification Source --
NTSB Notification Date Jul 31 1987 12:00AM
NTSB Notification Time 1530
Fiche Number and/or location -used to find docket information 35260
Date of most recent change to record Dec 18 2002 11:28AM
User who most recently changed record NTSB\GIUV
Basic weather conditions Visual Meteorological Cond
FAA District Office --

Aircraft Involved

Aircraft #1

Aircraft Registration Number N7726V
NTSB Number MKC87LA152
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 AERO COMMANDER
Aircraft Model CALLAIR A9-B
Aircraft Series Identifier CALLAIR A9
Aircraft Serial Number 1477
Certified Max Gross Weight 3000
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 Unknown
Date of Last Inspection --
Airframe hours since last inspection --
Airframe Hours 3000
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name RAY KLINGINSMITH
Aircraft Owner Street Address
Aircraft Owner City TRENTON
Aircraft Owner State MO
Aircraft Owner Country
Aircraft Owner Zipcode
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 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 No
Departure Airport Code TRX
Departure City TRENTON
Departure State MO
Departure Country
Departure Time 1545
Departure Time Zone CST
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 Landing
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 18
Runway Length 4300
Runway Width 50
Sight Seeing flight No
Air Medical Flight No
Medical Flight --