NTSB Identification: NYC86FA196.
The docket is stored on NTSB microfiche number 33675.
Accident occurred Monday, August 04, 1986 in BROOKLYN, CT
Aircraft: GRUMMAN TBM-3E, registration: N6581D
Injuries: 1 Fatal.

NTSB investigators either traveled in support of this investigation or conducted a significant amount of investigative work without any travel, and used data obtained from various sources to prepare this aircraft accident report.

THE ACFT WAS BEING FLOWN TO THE OWNER'S RESIDENCE WHEN THE ACCIDENT OCCURRED. SHORTLY AFTER TAKEOFF BLACK AND WHITE SMOKE WAS OBSERVED EMITTING FROM THE ENG COWLING AND THE ENG WAS HEARD SPUTTERING. ACCORDING TO WITNESSES, THE ACFT LEVELED OFF AT AN ALT OF APRX 250-400 FT AGL AND BEGAN A LEFT TURN BACK TOWARD THE ARPT. A WITNESS STATED THE ACFT THEN ROLLED INVERTED AND DESCENDED TO IMPACT WITH THE TERRAIN. POST ACCIDENT INSPECTION OF THE WRECKAGE REVEALED THE #8 AND #10 PISTON HEADS EACH HAD A HOLE BURNED THROUGH THEM.PISTON #1, #13, #14, #2, AND #3 ALSO SHOWED SIGNS OF HEAT DAMAGE. THE LAST ANNUAL INSPECTION WAS PERFORMED ON SEPTEMBER 7, 1983. THE ACFT HAD BEEN ISSUED A FERRY PERMIT FOR THIS FLT.

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

ENGINE ASSEMBLY,PISTON..FAILURE,TOTAL

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

ENGINE ASSEMBLY,PISTON..BURNED


Contributing Factors

OBJECT..TREE(S)

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