Aircraft Accident/Incident Report

St. Ignatius, Montana 59865
Wednesday, May 6, 1987 10:15 MDT

NTSB Narrative Summary Released at Completion of Accident

AN AG PLT WAS SPRAYING A FIELD NEAR THE LOCAL ARPT, AT 100 FEET AGL. DURING AN AERIAL APPLICATION MANEUVER, THE ENGINE MADE A LOUD BANG AND STOPPED. THE PLT LEVELED THE ACFT, SELECTED A LANDING SITE AND LANDED. DURING THE ROLL OUT, THE ACFT CROSSED AN IRRIGATION DITCH AND HIT A FENCE. THE LEFT GEAR WAS REMOVED BY A FENCE POST AND THE ACFT SKIDDED, RIGHT WING FIRST, TO A STOP. A POST CRASH INSPECTION OF THE ENGINE SHOWED A FAILURE OF THE CRANKSHAFT. A SERVICE BULLETIN ISSUED IN FEBRUARY, 1987, WARNED OF SOME PREVIOUS FAILURES OF CRANKSHAFTS IN THIS ENGINE.

NTSB Probable Cause Narrative

Not Yet Reported

Event Information

Type of Event Accident
Event Date 5/6/1987
Event Day of the Week Wednesday
Time of Event 1015
Event Time Zone Mountain Daylight Time
Event City ST. IGNATIUS
Event State MONTANA
Event Country --
Zipcode of the event site 59865
Event Date Year 1987
Event Date Month 5
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 0
Degrees magnetic from airport 0
Airport Elevation --
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) 30
Air Temperature at event time (in degrees celsius) 13
Dew Point at event time (in degress fahrenheit) --
Wind Direction (degrees magnetic) 0
Variable Wind Indicator Unknown
Wind Speed (knots) 0
Wind Velocity Indicator Calm
Wind Gust Indicator Not Gusting
Wind Gust (knots) 0
Altimeter Setting at event time (in. Hg) --
Density Altitude (feet) 3400
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) 941
NTSB Notification Source --
NTSB Notification Date May 6 1987 12:00AM
NTSB Notification Time 1430
Fiche Number and/or location -used to find docket information 34112
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 N9282R
NTSB Number DEN87LA119
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 A188B
Aircraft Series Identifier A188B
Aircraft Serial Number 18802210T
Certified Max Gross Weight 3300
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 Annual
Date of Last Inspection Apr 1 1987 12:00AM
Airframe hours since last inspection 14
Airframe Hours 2432
ELT Installed No
ELT Activated No
ELT Aided Location of Event Site No
ELT Type --
Aircraft Owner Name COOPER DARYL V
Aircraft Owner Street Address BOX 606
Aircraft Owner City RONAN
Aircraft Owner State MT
Aircraft Owner Country
Aircraft Owner Zipcode 59864
Operator is an individual? --
Operator Name DARYL V. COOPER
Operator Same as Owner? No
Operator Is Doing Business As --
Operator Address Same as Owner? No
Operator Street Address BOX 606
Operator City RONAN
Operator State MT
Operator Country
Operator Zip code 59864
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 7SO
Departure City RONAN
Departure State MT
Departure Country
Departure Time 1000
Departure Time Zone MDT
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 0
Runway Length --
Runway Width --
Sight Seeing flight No
Air Medical Flight No
Medical Flight --