NTSB Identification: FTW87DRD13.
The docket is stored on NTSB microfiche number 34090.
Accident occurred Wednesday, August 19, 1987 in MONROE, LA
Probable Cause Approval Date: 08/31/1988
Aircraft: Air Tractor AT-400A, registration: N3159C
Injuries: 1 Uninjured.

THE AG PILOT PULLED UP FROM A SWATH RUN WHILE SPRAYING CHEMICALS ON COTTON AND THE PT 6A-20A ENGINE IN HIS AIRCRAFT EXPLODED. A POST ACCIDENT TEARDOWN OF THE ENGINE REVEALED THE BLADES OF A COMPRESSOR DISK HAD FAILED CAUSING A TOTAL LOSS OF POWER. REASON FOR FAILURE OF THE BLADES WAS NOT DETERMINED. THE COTTON FIELD WAS LOCATED ON THE PROPERTY OF THE REGIONAL AIRPORT AT MONROE, LA, HOWEVER, THE AIRPLANE WAS NOT IN A POSITION TO REACH A RUNWAY FOR LANDING AND AIRSPEED WAS NOT MAINTAINED. THIS RESULTED IN A HARD LANDING.

The National Transportation Safety Board determines the probable cause(s) of this accident to be:

COMPRESSOR ASSEMBLY,BLADE..FAILURE,TOTAL


Contributing Factors

AIRSPEED(VS)..NOT MAINTAINED..PILOT IN COMMAND

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