NTSB Identification: NYC88LA174.
The docket is stored on NTSB microfiche number 36378.
Accident occurred Friday, July 01, 1988 in EAST HAMPTON, NY
Probable Cause Approval Date: 06/09/1989
Aircraft: PIPER PA-23-250, registration: N62771
Injuries: 1 Serious,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 HE HAD EXPERIENCED A PARTIAL POWER LOSS ON DOWNWIND OF A VFR TRAFFIC PATTERN. HE STATED THAT JUST AFTER ENTERING DOWNWIND HE LOWERED THE LANDING GEAR. AS THE SPEED DECREASED BELOW 132 KNOTS HE ADVANCED THE THROTTLES. THERE WAS NO RESPONSE. HE REPORTED THAT THE RIGHT PROPELLER RPM SUDDENLY INDICATED 3200. EVENTUALLY THE RPM RECOVERED TO 2700. THE PILOT FELT THAT TOO MUCH ALTITUDE HAD BEEN LOST AND PUT ALL CONTROLS FORWARD WITH ONLY A PARTIAL RESPONSE. THE AIRCRAFT COLLIDED WITH TREES. POST ACCIDENT INVESTIGATION BY THE FAA AND THE MANUFACTURER FAILED TO REVEALANY MALFUNCTION OR ABNORMALITIES.
The National Transportation Safety Board determines the probable cause(s) of this accident to be:POWERPLANT..UNDETERMINED
The National Transportation Safety Board determines the probable cause(s) of this accident to be:IN-FLIGHT PLANNING/DECISION..POOR..PILOT IN COMMAND
The National Transportation Safety Board determines the probable cause(s) of this accident to be:EMERGENCY PROCEDURE..IMPROPER..PILOT IN COMMAND
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