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ZNY controller reports of an near midair collision due to poor coordination of altitudes between two aircraft and possibly a slow climbing aircraft.
| Attributes | |
| ACN | 1241879 |
| Time | |
| Date | 201502 |
| Local Time Of Day | 1801-2400 |
| Place | |
| Locale Reference | ZNY.ARTCC |
| State Reference | NY |
| Environment | |
| Light | Night |
| Aircraft 1 | |
| Make Model Name | Light Transport Low Wing 2 Turbojet Eng |
| Flight Phase | Cruise |
| Flight Plan | IFR |
| Aircraft 2 | |
| Make Model Name | Widebody Low Wing 2 Turbojet Eng |
| Flight Phase | Climb |
| Flight Plan | IFR |
| Person 1 | |
| Function | Enroute Oceanic |
| Qualification | Air Traffic Control Fully Certified |
| Experience | Air Traffic Control Time Certified In Pos 1 (yrs) 5 |
| Events | |
| Anomaly | ATC Issue All Types Conflict NMAC Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance |
Narrative:
Aircraft X was coordinated inbound with sju center at FL340 his altitude options were FL340 or FL390 and they chose FL340 initially; then called and re-coordinated him at FL390; then called back and asked to coordinate him at FL370 climbing to FL390 which I approved reference the aircraft Y at FL370 which was already coordinated from myself to sju center.a minute or two later I received a message from arinc that the aircraft X that he was responding to a TCAS alert which he said was 150 feet; not sure if it was above or below him. Not sure what to recommend.
Original NASA ASRS Text
Title: ZNY Controller reports of an NMAC due to poor coordination of altitudes between two aircraft and possibly a slow climbing aircraft.
Narrative: Aircraft X was coordinated inbound with SJU Center at FL340 his altitude options were FL340 or FL390 and they chose FL340 initially; then called and re-coordinated him at FL390; then called back and asked to coordinate him at FL370 climbing to FL390 which I approved reference the Aircraft Y at FL370 which was already coordinated from myself to SJU Center.A minute or two later I received a message from ARINC that the Aircraft X that he was responding to a TCAS alert which he said was 150 feet; not sure if it was above or below him. Not sure what to recommend.
Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.