NTSB Identification: MKC89LA079.
The docket is stored on NTSB microfiche number 38467.
Accident occurred Saturday, March 11, 1989 in STUTTGART, AR
Probable Cause Approval Date: 01/22/1991
Aircraft: GRUMMAN G-164A, registration: N9874
Injuries: 1 Minor.

NTSB investigators may not have traveled in support of this investigation and used data provided by various sources to prepare this aircraft accident report.

THE PILOT REPORTED THAT AS HE WAS LINING UP TO MAKE HIS FIRST SWATH RUN, THE ENGINE LOST POWER. ALSO, HE STATED THAT AS THE AIRCRAFT WAS LOSING ALTITUDE AND POWER, IT GOT TO ABOUT TELEPHONE POLE HEIGHT, THEN IT STALLED AND COLLIDED WITH THE TERRAIN AT A STEEP ANGLE. A POST ACCIDENT EXAM OF THE ENGINE REVEALED THE SUPERCHARGER SHAFT HAD SHEARED, WHICH RESULTED IN THE LOSS POWER. REPORTEDLY, THE AIRCRAFT WAS FULLY LOADED WITH FUEL AND DRY FERTILIZER, WHEN IT CRASHED.

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

FAILURE OF THE ENGINE BLOWER ASSEMBLY DRIVE SHAFT, WHILE MANEUVERING AT LOW ALTITUDE, AND FAILURE OF THE PILOT TO MAINTAIN ADEQUATE AIRSPEED, WHICH RESULTED IN A STALL BEFORE HE COULD LAND.

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