Narrative:

Phl approach control had cleared air carrier X to a heading of 090 degrees after passing bucks. We asked for and received a deviation clearance to the right of course. We were told to return to a heading of 090 degrees when clear of the WX. We were on a deviation heading of 110 degrees when we received a TA followed by an RA alert. Phl approach was notified of our RA and we were complying. TCASII instructed us to climb at 1500 FPM. Phl approach told us to turn to a heading of 060 degrees followed by 360 degrees. We climbed in compliance with the TCASII RA. The altitude we reached was 8700 ft MSL before we received the clear of conflict signal with aircraft Y and returned to 8000 ft MSL. After landing I called phl approach and was told they were investigating a possible operational error. Supplemental information from acn 242797: we deviated between 2 or 3 small cells which required small corrections from 090 degrees to 110 degrees. The cells were not significant, but I was looking for the smoothest ride. The controller then stated that opposite direction traffic was climbing to our altitude, asked us to turn to 090 degrees, then 060 degrees. About this time we received a TA on our TCASII (yellow target). The aircraft at 12 O'clock and about 5 mi. I increased the angle of bank past 30 degrees when the controller asked for a further left turn to 360 degrees. We received an RA to climb from plus 2000 FPM to plus 2500 FPM. I complied, and deviated from assigned altitude, to about 8700 ft. I returned to 8000 ft after traffic was clear (via TCASII). The controller could have been a little more timely, and a tone of urgency may have prompted a more aggressive turn, earlier.

Related reports:

Google
 

Original NASA ASRS Text

Title: ACR X SAME ALT ASSIGNED TCASII TA RA HAD LTSS FROM ACFT Y. EVASIVE ACTION TAKEN CLB SYS ERROR.

Narrative: PHL APCH CTL HAD CLRED ACR X TO A HDG OF 090 DEGS AFTER PASSING BUCKS. WE ASKED FOR AND RECEIVED A DEV CLRNC TO THE R OF COURSE. WE WERE TOLD TO RETURN TO A HDG OF 090 DEGS WHEN CLR OF THE WX. WE WERE ON A DEV HDG OF 110 DEGS WHEN WE RECEIVED A TA FOLLOWED BY AN RA ALERT. PHL APCH WAS NOTIFIED OF OUR RA AND WE WERE COMPLYING. TCASII INSTRUCTED US TO CLB AT 1500 FPM. PHL APCH TOLD US TO TURN TO A HDG OF 060 DEGS FOLLOWED BY 360 DEGS. WE CLBED IN COMPLIANCE WITH THE TCASII RA. THE ALT WE REACHED WAS 8700 FT MSL BEFORE WE RECEIVED THE CLR OF CONFLICT SIGNAL WITH ACFT Y AND RETURNED TO 8000 FT MSL. AFTER LNDG I CALLED PHL APCH AND WAS TOLD THEY WERE INVESTIGATING A POSSIBLE OPERROR. SUPPLEMENTAL INFO FROM ACN 242797: WE DEVIATED BTWN 2 OR 3 SMALL CELLS WHICH REQUIRED SMALL CORRECTIONS FROM 090 DEGS TO 110 DEGS. THE CELLS WERE NOT SIGNIFICANT, BUT I WAS LOOKING FOR THE SMOOTHEST RIDE. THE CTLR THEN STATED THAT OPPOSITE DIRECTION TFC WAS CLBING TO OUR ALT, ASKED US TO TURN TO 090 DEGS, THEN 060 DEGS. ABOUT THIS TIME WE RECEIVED A TA ON OUR TCASII (YELLOW TARGET). THE ACFT AT 12 O'CLOCK AND ABOUT 5 MI. I INCREASED THE ANGLE OF BANK PAST 30 DEGS WHEN THE CTLR ASKED FOR A FURTHER L TURN TO 360 DEGS. WE RECEIVED AN RA TO CLB FROM PLUS 2000 FPM TO PLUS 2500 FPM. I COMPLIED, AND DEVIATED FROM ASSIGNED ALT, TO ABOUT 8700 FT. I RETURNED TO 8000 FT AFTER TFC WAS CLR (VIA TCASII). THE CTLR COULD HAVE BEEN A LITTLE MORE TIMELY, AND A TONE OF URGENCY MAY HAVE PROMPTED A MORE AGGRESSIVE TURN, EARLIER.

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.