NTSB Identification: ATL83LA326.
The docket is stored on NTSB microfiche number 21742.
Accident occurred Monday, August 15, 1983 in HATLEY, GA
Aircraft: GRUMMAN G-164A, registration: N7904
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 WHILE SPRAYING A COTTON FIELD AT APRX 60 FEET AGL WHEN THE ENGINE MADE A POPPING SOUND AND THEN LOST POWER. THE PILOT LANDED IN A COTTON FIELD WHERE THE AIRCRAFT ROLLED OVER ON ITS BACK AND WAS DESTROYED BY THE POST IMPACT FIRE. SUBSEQUENT EXAMINATION OF THE ENGINE REVEALED: SCORING OF THE 5# CYLINDER, NO OIL IN THE CASE OR EVIDENCE OF OIL RESIDUE; EXHAUST STACK WEAR THE #2 AND #3 CYLINDERS WAS DAMAGED BY EXCESSIVE HEAT. THE EXHAUST STACK APPEARS TO HAVE WORKED LOOSE IN FLIGHT CAUSING EXCESSIVE HEAT TO BE DIRECTED TOWARD THE #2, 3 AND 4 CYLINDER HEADS TO MELT OFF.

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

EXHAUST SYSTEM,STACK..DISCONNECTED

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