# Incident 19990618032519I: York, PA, June 18, 1999

- Type: FAA incident report (Accident/Incident Data System), as reported
- Date: June 18, 1999, 16:16 local time
- Place: York, PA
- Phase of flight: Normal Cruise
- Operating rules: Air carrier (Part 121)
- Operator: UALA
- Location: 39.9648° N, 76.7318° W: Placed by OpenAirDocs: center of York, PA, within about 6 miles (OpenAirDocs)
- Nearby events: https://openairdocs.org/map.md?lat=39.9648&lon=-76.7318&mi=10
- Aircraft: UNKNOWN (not matched to a registry record)
- People aboard: 2
- Fatal injuries: 0
- FAA source: FAA Aviation Safety Information Portal (https://asip.faa.gov/)
- Page: https://openairdocs.org/incident/19990618032519I

## Narrative

As the FAA filed it, in capitals; the FAA replaces private details with ^PRIVACY DATA OMITTED^.

(-23) ATC BECAME AWARE OF A POTENTIAL TRAFFIC CONFLICT BETWEEN CGESR AND UAL287 WITH LIMITED TIME AVAILABLE TO AVOID THE CONFLICT. ATC ATTEMPTED TO RESOLVE THE SITUATION WITH AMENDED ALTITUDE INSTRUCTIONS TO UAL287.  IMMEDIATELY AFTER CORRECTIVE ALTITUDE INSTRUCTIONS WERE UNDERSTOOD AND ACKNOWLEDGED BY UAL287, TCAS ALERTS WERE EXPERIENCED BOTH AIRCRAFT.  TCAS ALERTS ADVISED ACTION CONTRARY TO CONTROLLER INSTRUCTIONS AND THE PILOTS OF BOTH AIRCRAFT ELECTED TO FOLLOW TCAS ADVISORIES.  A CLIMB WAS ADVISED (BY TCAS) TO CGESR AND A DESCENT WAS ADVISED (BY TCAS) TO UAL287.  REQUIRED SEPARATION WAS LOST HOWEVER COLLISION WAS AVOIDED.  ALL ACTIONS TAKEN BY PILOTS SEEMED TIMELY AND IN ACCORDANCE WITH ISSUED ATC INSTRUCTIONS UP TO THE POINT OF TCAS ALERT(S).  EARLIER RECOGNITION, BY ATC, OF POTENTIAL TRAFFIC CONFLICT MAY HAVE PREVENTED THIS INCIDENT.

From the FAA Accident/Incident Data System. Reports are matched to registry aircraft by N-number and event date, checked against the reported make and model; the registry's history has gaps, so older matches can be wrong. Compare the reported make and model. For accidents, the NTSB's own investigation is the fuller record.

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