B757 flight crew took evasive action from an unseen TCAS RA target at 5;600 ft near sax VOR descendi...

Attributes
ACN	1090621
Time
Date	201305
Local Time Of Day	0601-1200
Place
Locale Reference	N90.TRACON
State Reference	NY
Environment
Flight Conditions	VMC
Light	Night
Aircraft 1
Make Model Name	B757 Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Descent
Flight Plan	IFR
Person 1
Function	Captain Pilot Flying
Qualification	Flight Crew Air Transport Pilot (ATP)
Person 2
Function	First Officer Pilot Not Flying
Events
Anomaly	ATC Issue All Types Conflict NMAC Deviation - Altitude Excursion From Assigned Altitude Deviation - Procedural Clearance
Miss Distance	Vertical 400

Narrative:

Received a TCAS RA while being vectored at 6;000 ft with ny approach control approximately near the sax VOR. Approach issued a target for us at 12 O'clock. We saw him on TCAS and were right under us. We did not see him visually. ATC gave us a descent to 5;000 ft. We asked for a turn away from the traffic and were given a clearance. As we started descending; the aircraft appeared to be climbing. At about 5;600 ft we got a TCAS climb RA. We complied and climbed. We advised ATC that we were climbing in response to a TCAS RA and were cleared to climb to our original altitude of 6;000 ft. Although we are not certain; we may have come within 400 ft of the other aircraft.

Original NASA ASRS Text

Title: B757 flight crew took evasive action from an unseen TCAS RA target at 5;600 FT near SAX VOR descending for a EWR approach.

Narrative: Received a TCAS RA while being vectored at 6;000 FT with NY Approach Control approximately near the SAX VOR. Approach issued a target for us at 12 O'clock. We saw him on TCAS and were right under us. We did not see him visually. ATC gave us a descent to 5;000 FT. We asked for a turn away from the traffic and were given a clearance. As we started descending; the aircraft appeared to be climbing. At about 5;600 FT we got a TCAS climb RA. We complied and climbed. We advised ATC that we were climbing in response to a TCAS RA and were cleared to climb to our original altitude of 6;000 FT. Although we are not certain; we may have come within 400 FT of the other aircraft.

Data retrieved from NASA's ASRS site as of July 2013 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.

B757 flight crew took evasive action from an unseen TCAS RA target at 5;600 ft near sax VOR descending for a ewr approach.