Narrative:

I was first officer on flight XXX jfk to lhr on 12/aa/95. We departed runway 31L. After cri we were told to turn left heading 070 degrees and climb to 11000 ft. Part way through the climbing left turn, the captain, who was flying, called out conflicting traffic above and to our left. He rolled out of the turn and began to level the aircraft. Simultaneously the ATC controller told us to turn further left to a 060 degree heading and stop the climb. As this was happening we received a TCASII RA to descend. The captain maintained visual contact with the traffic and made a slight descending turn to the right at which time I lost sight of the traffic. The TCASII display showed the traffic at less than 1 mi and 200 ft vertically. As we accelerated clear of the traffic I queried the controller and he gave us a left turn and reclred us to 11000 ft. The remainder of the flight was normal. Supplemental information from acn 324086: recognizing a potential danger with the other aircraft and wanting to avoid a wake turbulence encounter, I elected to roll out of the turn and level off while keeping the other aircraft (B747) in sight. Leveloff occurred at approximately 500 ft below the B747 and about a mi away at the 3:30-4 O'clock position. The B747 was descending at or near 8000 ft. No injuries occurred in this controled maneuver.

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Original NASA ASRS Text

Title: TCASII RA DURING DEP FROM JFK.

Narrative: I WAS FO ON FLT XXX JFK TO LHR ON 12/AA/95. WE DEPARTED RWY 31L. AFTER CRI WE WERE TOLD TO TURN L HDG 070 DEGS AND CLB TO 11000 FT. PART WAY THROUGH THE CLBING L TURN, THE CAPT, WHO WAS FLYING, CALLED OUT CONFLICTING TFC ABOVE AND TO OUR L. HE ROLLED OUT OF THE TURN AND BEGAN TO LEVEL THE ACFT. SIMULTANEOUSLY THE ATC CTLR TOLD US TO TURN FURTHER L TO A 060 DEG HDG AND STOP THE CLB. AS THIS WAS HAPPENING WE RECEIVED A TCASII RA TO DSND. THE CAPT MAINTAINED VISUAL CONTACT WITH THE TFC AND MADE A SLIGHT DSNDING TURN TO THE R AT WHICH TIME I LOST SIGHT OF THE TFC. THE TCASII DISPLAY SHOWED THE TFC AT LESS THAN 1 MI AND 200 FT VERTLY. AS WE ACCELERATED CLR OF THE TFC I QUERIED THE CTLR AND HE GAVE US A L TURN AND RECLRED US TO 11000 FT. THE REMAINDER OF THE FLT WAS NORMAL. SUPPLEMENTAL INFO FROM ACN 324086: RECOGNIZING A POTENTIAL DANGER WITH THE OTHER ACFT AND WANTING TO AVOID A WAKE TURB ENCOUNTER, I ELECTED TO ROLL OUT OF THE TURN AND LEVEL OFF WHILE KEEPING THE OTHER ACFT (B747) IN SIGHT. LEVELOFF OCCURRED AT APPROX 500 FT BELOW THE B747 AND ABOUT A MI AWAY AT THE 3:30-4 O'CLOCK POS. THE B747 WAS DSNDING AT OR NEAR 8000 FT. NO INJURIES OCCURRED IN THIS CTLED MANEUVER.

Data retrieved from NASA's ASRS site as of July 2007 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.