Air Traffic Control Fully Certified
Other / Unknown
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance
Airport; Airspace Structure
I was working LGA Departure. LGA was departing R31 and the first A320 departed on an assigned SID heading of 340 degrees. On initial contact from the Tower; the first A320 was climbed to; I believe 15;000. As the first A320 was about four miles northwest of LGA I noticed a EWR R22 arrival; a second A320; southeast bound at 4;000 heading toward the first A320. The EWR arrival would normally be at 3;000 at this point on the EWR final but for some reason was not. I instructed the first A320 to turn right to a 360 degree heading to keep these aircraft further apart and instructed the first A320 to maintain 8;000 so as not to interfere with the previous LGA departure off his right front that was climbing out of 8;000. I called the second A320 traffic to my first A320 aircraft but the first A320 did not report having the second A320 in sight. The EWR Controller turned the second A320 aircraft onto their R22 final; without a point out and the two aircraft passed with slightly less than three miles within less than a 1;000 FT vertical separation. I at no point left my airspace nor violated EWR's airspace during this incident.
N90 Controller described a likely loss of separation event when traffic inbound to EWR was higher than required and conflicted with LGA traffic.