NTSB Identification: NYC83FU005B
Accident occurred Saturday, May 21, 1983 in ENFIELD, NY
Aircraft: ROBERTSON B1-RD (SN:115), registration: NONE
Injuries: 1 Fatal,1 Serious.

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.

DURING FLT, THE 2 ULTRALIGHT VEHICLES WERE OBSERVED FLYING IN CLOSE PROXIMITY TO EACH OTHER. LATER, THEY WERE OBSERVED APPROACHING THE DEPARTURE FIELD AT APRX 300 TO 500 FT AGL. THE LEAD VEHICLE, SN:115, WITH A NON-RATED PLT, BEGAN A LEFT TURN. THE OTHER VEHICLE, SN:244, WITH A RATED PLT, CONVERGERED. SUBSEQUENTLY, THEY WERE APPROACHING EACH OTHER 'HEAD-ON.' THE PLT OF VEHICLE 244 ATTEMPTED TO PASS BENEATH VEHICLE 115. HOWEVER, THE ULTRALIGHTS COLLIDED, ENTERED A DESCENT & CRASHED. VEHICLE 115 STRUCK A TREE & VEHICLE 244 CRASHED IN AN OPEN FIELD. THE PLT OF VEHICLE 115 WAS SERIOUSLY INJURED WHILE THE OTHER PLT WAS FATALLY INJURED.

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

IN-FLIGHT PLANNING/DECISION..IMPROPER..PILOT IN COMMAND

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

CLEARANCE..NOT MAINTAINED..PILOT IN COMMAND

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

DISTANCE..MISJUDGED..PILOT OF OTHER AIRCRAFT

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

CLEARANCE..NOT MAINTAINED..PILOT OF OTHER AIRCRAFT

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