NTSB Identification: ATL86FA208.
The docket is stored on NTSB microfiche number 31981.
Accident occurred Thursday, July 24, 1986 in RALEIGH, NC
Aircraft: PIPER PA-60-600, registration: N3643Q
Injuries: 2 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 PLT WAS ISSUED RWY 5, 7,500', FOR IFR DEPARTURE WITH FAVORING 4 KT QUARTERING HEADWIND. PLT REQUESTED RWY 14, 4,498', FOR TAKEOFF WITH A 4 KT QUARTERING TAILWIND. GROUND WITNESS AND CONTROL TOWER OBSERVED ACFT USE NEARLY ALL OF THE RWY ON TAKEOFF ROLL. AFTER AN ABRUPT ROTATION, THE CONTROLLER OBSERVED ACFT YAW TO LEFT AND MAKE A LOW ALT LEFT TURN. SECONDS LATER THE ACFT RAPIDLY DESCENDED INTO TREES AND CAUGHT FIRE. THE LEFT PROPELLER WAS FOUND IN THE FEATHERED POSITION AND THE LEFT ENGINE WAS CONSUMED BY A GROUND FIRE. THERE WAS NO EVIDENCE OF ANY INTERNAL ENGINE FAILURE. THE ENGINE TIME SMOH WAS 43 HRS. WITNESS HEARD THE ACFT TAKEOFF WITH A SERIES OF LOUD BACKFIRES 25 DAYS PRIOR TO THE ACCIDENT. INJECTOR NOZZLES ON THE RIGHT ENGINE WERE LEANED TO CORRECT THE PROBLEM AFTER 6 HRS OF OPERATION ONE WEEK LATER. THE PLTS LOG FAILED TO SHOW ANY RECENT TRAINING IN SINGLE ENGINE PROCEDURES.

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

REASON FOR OCCURRENCE UNDETERMINED

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

WRONG RUNWAY..SELECTED..PILOT IN COMMAND

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

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




Contributing Factors

WEATHER CONDITION..LOW CEILING



Contributing Factors

OVERCONFIDENCE IN PERSONAL ABILITY..PILOT IN COMMAND

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