NTSB Identification: NYC88IA109B.
The docket is stored on NTSB microfiche number 37076.
Incident occurred Friday, March 18, 1988 in MORRISTOWN, NJ
Probable Cause Approval Date: 01/16/1990
Aircraft: Gates Learjet 24E, registration: N500NH
Injuries: 123 Uninjured.

NTSB investigators used data provided by various sources and may not have traveled in support of this investigation to prepare this aircraft incident report.

BOEING 737 (N69348) WAS DEPG NEWARK INTL ARPT AS A LEAR JET 24 (N500NH) WAS DEPG FM TETERBORO. BOTH WERE BEING CTLD BY NEW YORK TRACON (NEWARK SECTOR). THE STRIP FOR THE 737 WAS MISMARKED AS A NORTH DEPARTURE RATHER THAN AN EAST DEPARTURE.THE INSTRUCTOR/FULL PERFORMANCE LEVEL CONTROLLER (FPL CTLR) SAT AT THE RADAR SCOPE IN A PSN WHERE HE COULD NOT VERIFY THE MARKINGS ON STRIPS WHICH WERE BEING USED BY THE DEVELOPMENTAL CTLR. WHEN AN AUTOMATED HANDOFF WAS INITIATED TO THE WRONG SECTOR, BOTH NEWARK CTLRS DISCOVERED THE ERROR. THE DEVELOPMENTAL CTLR STARTED TO TAKE ACTION TO MAINT SEPARATION BETWEEN THE 737 & THE LEAR JET. HOWEVER, THE FPL CTLR TOOK CONTROL & THE REQUIRED IFR SEPARATION WAS SUBSEQUENTLY LOST. BOTH ACFT WERE OPERATING ON IFR FLT PLANS IN VFR CONDITIONS. NO EVASIVE ACTION WAS TAKEN BY EITHER FLT CREW.

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

MONITORING..INADEQUATE..ATC PERSONNEL(DEP/APCH)

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

IFR SEPARATION STANDARDS..NOT MAINTAINED..ATC PERSONNEL(DEP/APCH)

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