Narrative:

We were receiving vectors for an ILS approach to runway 22L at ewr. Level at 6000 ft MSL; heavy aircraft traffic in the area and also on the radio frequency. Noticed an aircraft climbing quickly through 5500 ft at less than 1 mi ahead. Received TCAS TA alert; but was unable to break in on radio frequency. Then received RA alert and advised PF; I was in the right seat and pilot monitoring; to respect TCAS alert and 'go.' we climbed quickly to about 6800 ft and finally advised approach controller of our actions and that we had received a TCAS RA. Controller seemed almost uninterested and advised us to level at 6500 ft; additionally he advised other traffic to level at 6000 ft and turn to a heading. The controller then proceeded to continue to advise other aircraft and when we were once again able to communicate on the frequency we advised that this was an 'RA;' and did he want us to remain at 6500 ft? The controller gave us a heading and a return to 6000 ft; nothing further was mentioned of the incident and we were vectored to the approach and handed off to the tower controller. The other aircraft ultimately came to within 200 ft of our altitude and was just under our nose.

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Original NASA ASRS Text

Title: B777 FLT CREW WITH N90; EXPERIENCED NMAC/TCAS RA AT 6000 DURING VECTORS TO ILS 22L AT EWR.

Narrative: WE WERE RECEIVING VECTORS FOR AN ILS APCH TO RWY 22L AT EWR. LEVEL AT 6000 FT MSL; HVY ACFT TFC IN THE AREA AND ALSO ON THE RADIO FREQ. NOTICED AN ACFT CLBING QUICKLY THROUGH 5500 FT AT LESS THAN 1 MI AHEAD. RECEIVED TCAS TA ALERT; BUT WAS UNABLE TO BREAK IN ON RADIO FREQ. THEN RECEIVED RA ALERT AND ADVISED PF; I WAS IN THE R SEAT AND PLT MONITORING; TO RESPECT TCAS ALERT AND 'GO.' WE CLBED QUICKLY TO ABOUT 6800 FT AND FINALLY ADVISED APCH CTLR OF OUR ACTIONS AND THAT WE HAD RECEIVED A TCAS RA. CTLR SEEMED ALMOST UNINTERESTED AND ADVISED US TO LEVEL AT 6500 FT; ADDITIONALLY HE ADVISED OTHER TFC TO LEVEL AT 6000 FT AND TURN TO A HDG. THE CTLR THEN PROCEEDED TO CONTINUE TO ADVISE OTHER ACFT AND WHEN WE WERE ONCE AGAIN ABLE TO COMMUNICATE ON THE FREQ WE ADVISED THAT THIS WAS AN 'RA;' AND DID HE WANT US TO REMAIN AT 6500 FT? THE CTLR GAVE US A HDG AND A RETURN TO 6000 FT; NOTHING FURTHER WAS MENTIONED OF THE INCIDENT AND WE WERE VECTORED TO THE APCH AND HANDED OFF TO THE TWR CTLR. THE OTHER ACFT ULTIMATELY CAME TO WITHIN 200 FT OF OUR ALT AND WAS JUST UNDER OUR NOSE.

Data retrieved from NASA's ASRS site as of May 2009 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.