Narrative:

Our flight was off san at XX21Z from runway 27. Socal departure control on 119.6 cleared us to turn right to 90 degrees, go direct ipl when able and climb to FL230. At about half way through the turn, socal advised us of an air carrier Y, a B757, departing behind us would be turning right for thermal VOR and keeping us in sight visually as it will pass below and behind us also in a right turn. I did not see air carrier Y until we were heading through about 010 degrees. It appeared on our TCASII at 4 O'clock and about 5 mi at first. The first officer was flying and saw him turning inside our turn and climbing. Air carrier Y told socal departure that he saw us in his acceptance of the visual climb clearance, but must not have realized our intended track, as he continued to turn and climb into us in what looked like a rejoining formation maneuver. At 9500 ft MSL and heading 070 degrees, we got a TCASII call to monitor vertical speed followed shortly by a RA command to climb. The air carrier Y pilot asked socal what we were doing as he as also getting a TCASII alert of some kind. We rolled wings level to increase our climb rate to stay above the red lights in the vsi as we weighed 152000 pounds at takeoff and were climbing about 1500 FPM in the turn at 250 KTS. The vsi required 2500 FPM to satisfy the RA and we were clear of traffic at about 11500 ft MSL and 210 KIAS. The TCASII display showed the air carrier Y B757 passing immediately aft of our aircraft on the 10 mi display and at 300 ft below us passing off to our 7 O'clock then. I advised socal departure we would file a report and to pull the tapes.

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Original NASA ASRS Text

Title: FLC OF AN MD80 TOOK EVASIVE ACTION TO INCREASE THEIR DEP CLB IN RESPONSE TO A TCASII RA AND TO MAINTAIN VISUAL SEPARATION WITH ANOTHER ACFT CLBING OUT BELOW AND BEHIND THEM.

Narrative: OUR FLT WAS OFF SAN AT XX21Z FROM RWY 27. SOCAL DEP CTL ON 119.6 CLRED US TO TURN R TO 90 DEGS, GO DIRECT IPL WHEN ABLE AND CLB TO FL230. AT ABOUT HALF WAY THROUGH THE TURN, SOCAL ADVISED US OF AN ACR Y, A B757, DEPARTING BEHIND US WOULD BE TURNING R FOR THERMAL VOR AND KEEPING US IN SIGHT VISUALLY AS IT WILL PASS BELOW AND BEHIND US ALSO IN A R TURN. I DID NOT SEE ACR Y UNTIL WE WERE HEADING THROUGH ABOUT 010 DEGS. IT APPEARED ON OUR TCASII AT 4 O'CLOCK AND ABOUT 5 MI AT FIRST. THE FO WAS FLYING AND SAW HIM TURNING INSIDE OUR TURN AND CLBING. ACR Y TOLD SOCAL DEP THAT HE SAW US IN HIS ACCEPTANCE OF THE VISUAL CLB CLRNC, BUT MUST NOT HAVE REALIZED OUR INTENDED TRACK, AS HE CONTINUED TO TURN AND CLB INTO US IN WHAT LOOKED LIKE A REJOINING FORMATION MANEUVER. AT 9500 FT MSL AND HDG 070 DEGS, WE GOT A TCASII CALL TO MONITOR VERT SPD FOLLOWED SHORTLY BY A RA COMMAND TO CLB. THE ACR Y PLT ASKED SOCAL WHAT WE WERE DOING AS HE AS ALSO GETTING A TCASII ALERT OF SOME KIND. WE ROLLED WINGS LEVEL TO INCREASE OUR CLB RATE TO STAY ABOVE THE RED LIGHTS IN THE VSI AS WE WEIGHED 152000 LBS AT TKOF AND WERE CLBING ABOUT 1500 FPM IN THE TURN AT 250 KTS. THE VSI REQUIRED 2500 FPM TO SATISFY THE RA AND WE WERE CLR OF TFC AT ABOUT 11500 FT MSL AND 210 KIAS. THE TCASII DISPLAY SHOWED THE ACR Y B757 PASSING IMMEDIATELY AFT OF OUR ACFT ON THE 10 MI DISPLAY AND AT 300 FT BELOW US PASSING OFF TO OUR 7 O'CLOCK THEN. I ADVISED SOCAL DEP WE WOULD FILE A RPT AND TO PULL THE TAPES.

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.