B757 ON VIS APCH TO PHX EXPERIENCED TCAS RA WITH PARALLEL RWY DEP TFC WHEN GAR WAS INITIATED; LATE TWR ACTION LISTED AS CAUSAL FACTOR.

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UNSTABLE HIGH APCH TO RWY 25L PHX WITH GAR AT 500 FT. APCH WAS TOO HIGH AND TOO FAST ON FINAL AT 1000 FT. IT WAS BEGINNING TO COME TOGETHER BUT STILL TOO HIGH AT 500 FT AGL. WE DISCUSSED THAT IT WASN'T GOING TO WORK AND FO CALLED FOR GAR AT 500 FT ACCORDING TO COMPANY POLICY; AND GAR WAS INITIATED. FO CALLED GAR TO CTL TWR AND RH WAS FLOWN WITH A CLB. SOME TIME PASSED BEFORE CTL TWR ISSUED ANY INSTRUCTIONS; THEN ISSUED L 240 DEG HDG; CLB AND MAINTAIN 6000 FT. UNFORTUNATELY; DUE TO EITHER BLOCKED XMISSION; CAPT REQUESTING SOMETHING; BUSYNESS DURING GAR; TCAS SOUNDING; THE TURN INSTRUCTIONS WERE NOT UNDERSTOOD; BUT FO READ BACK; 'CLB AND MAINTAIN 6000 FT; SAY HDG AGAIN.' ABOUT THAT TIME; WE GOT A TCAS COMMANDING A 3000 FPM CLB. TFC SHOWED FT BELOW AND SLIGHTLY TO THE R. CAPT INITIATED AN EXPEDITED CLB WHILE SUBSEQUENTLY TURNING TO THE 240 DEG HDG NOW UNDERSTOOD; AND THE TCAS DISAPPEARED. FO CALLED THE TCAS TO THE CTL TWR. THE CONFLICTING TFC; WHEN TOLD TO CONTACT DEP; MADE A COMMENT TO THE CTL TWR LIKE 'THAT WAS PRETTY CLOSE.' WE NEVER SAW THE CONFLICTING TFC VISUALLY (UNDERNEATH US). AFTER GETTING TO THE GATE; I CALLED THE CTL TWR TO SPEAK WITH SOMEONE ABOUT THE SIT. I SPOKE WITH THE SUPVR; 1 OF THE 4 CTLRS WHO SAW THIS OCCUR. WE WERE BEING HANDLED BY A DEVELOPMENTAL TRAINEE WITH AN OVERSEEING INSTRUCTOR PLUS A LCL ASSIST LOOKING ON. THE SUPVR SAID IT WAS UGLY. HE SAID IT WAS ENTIRELY THE INSTRUCTOR'S RESPONSIBILITY AND THAT WE SHOULD HAVE BEEN TURNED APPROX 1 MILE BEFORE WE TURNED AND THAT THE CTLR SPENT TOO MUCH TIME DISCUSSING WITH APCH CTL WHAT THEY WERE GOING TO DO WITH US RATHER THAN TELLING US WHAT TO DO (TURN) AND THAT HE WAS NOT HAPPY WITH THAT. EVERYTHING WAS TECHNICALLY LEGAL; BUT UGLY. ANOTHER THING HE CRITICIZED HIS CTLRS ON WAS NOT GIVING US MORE INFO SUCH AS; 'TFC DEPARTING RWY 25R WILL BE STRAIGHT OUT.' WHEN I ASKED IF THERE WAS ANYTHING WE SHOULD HAVE DONE DIFFERENTLY; HE SAID HE DID NOT THINK SO. I ALSO ASKED IF WE EVER DRIFTED R OF COURSE; AND HE SAID IT WAS HARD TO TELL WITH THEIR RADAR; BUT HE DID NOT THINK WE DID. FROM A PLT'S PERSPECTIVE; ESPECIALLY WHEN CLOSE PARALLEL RWYS EXIST; I WILL TRY TO BE MORE AWARE OF WHETHER OR NOT TFC IS DEPARTING FROM THE PARALLEL WHILE ON APCH; ESPECIALLY IF A GAR IS A CONSIDERATION. SUPPLEMENTAL INFO FROM ACN 783109: CLRED FOR TKOF; ACFT ON VISUAL APCH TO PARALLEL RWY PERFORMED A GAR AND ENCROACHED INTO OUR PATH. TCAS ACTIVATED A PITCH-DOWN COMMAND AND CAPT (PNF) VERBALIZED 'TURN R!' AFTER TCAS CLRED CONFLICT; WE RETURNED. THIS PROB OCCURRED WHEN THE OTHER ACFT DID NOT FOLLOW ATC INSTRUCTIONS FOR THE GAR.