Narrative:

On feb/xa/01, our flight departed phx as flight XXX bound for sjc. Takeoff time from phx was at XA28. The departure SID flown was the bxk 1 (buckeye 1). At approximately 4 mi east of the pxr VORTAC, departure control initiated radar vectors and our altitude clearance was initially to FL230. After a second heading change issued by ATC, our altitude clearance was changed to 11000 ft and we were advised of light aircraft traffic at our 12:30 O'clock position. We visually searched for the traffic and were unable to acquire it visually, however, did have the target on TCASII. (Target was depicted as a hollow diamond and indicated to be 700 ft above our altitude.) we were then issued a clearance to direct the bxk VOR with an altitude clearance to 11000 ft. At this time, our aircraft was climbing through 10500 ft. At approximately 10700 ft, our TCASII traffic presentation changed from hollow diamond to solid diamond then suddenly to red solid square. We received an auditory RA to 'descend' and complied with the advisory. (Target was still not in sight.) we descended to approximately 10000 ft. In a descending right turn toward the bxk VOR and acquired the target visually 1/2 way through the turn (500 ft above our altitude and 1 mi horizontal separation.) ATC was advised that we had an RA and we were complying with the advisory. ATC acknowledged our transmission. After we determined visually that the traffic conflict was no longer a factor, we initiated our climb back to 11000 ft, advised ATC, and proceeded to destination without further incident.

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Original NASA ASRS Text

Title: B733 CREW, FLYING A SID, RESPONDED TO A DSND RA FROM TCASII.

Narrative: ON FEB/XA/01, OUR FLT DEPARTED PHX AS FLT XXX BOUND FOR SJC. TKOF TIME FROM PHX WAS AT XA28. THE DEP SID FLOWN WAS THE BXK 1 (BUCKEYE 1). AT APPROX 4 MI E OF THE PXR VORTAC, DEP CTL INITIATED RADAR VECTORS AND OUR ALT CLRNC WAS INITIALLY TO FL230. AFTER A SECOND HDG CHANGE ISSUED BY ATC, OUR ALT CLRNC WAS CHANGED TO 11000 FT AND WE WERE ADVISED OF LIGHT ACFT TFC AT OUR 12:30 O'CLOCK POS. WE VISUALLY SEARCHED FOR THE TFC AND WERE UNABLE TO ACQUIRE IT VISUALLY, HOWEVER, DID HAVE THE TARGET ON TCASII. (TARGET WAS DEPICTED AS A HOLLOW DIAMOND AND INDICATED TO BE 700 FT ABOVE OUR ALT.) WE WERE THEN ISSUED A CLRNC TO DIRECT THE BXK VOR WITH AN ALT CLRNC TO 11000 FT. AT THIS TIME, OUR ACFT WAS CLBING THROUGH 10500 FT. AT APPROX 10700 FT, OUR TCASII TFC PRESENTATION CHANGED FROM HOLLOW DIAMOND TO SOLID DIAMOND THEN SUDDENLY TO RED SOLID SQUARE. WE RECEIVED AN AUDITORY RA TO 'DSND' AND COMPLIED WITH THE ADVISORY. (TARGET WAS STILL NOT IN SIGHT.) WE DSNDED TO APPROX 10000 FT. IN A DSNDING R TURN TOWARD THE BXK VOR AND ACQUIRED THE TARGET VISUALLY 1/2 WAY THROUGH THE TURN (500 FT ABOVE OUR ALT AND 1 MI HORIZ SEPARATION.) ATC WAS ADVISED THAT WE HAD AN RA AND WE WERE COMPLYING WITH THE ADVISORY. ATC ACKNOWLEDGED OUR XMISSION. AFTER WE DETERMINED VISUALLY THAT THE TFC CONFLICT WAS NO LONGER A FACTOR, WE INITIATED OUR CLB BACK TO 11000 FT, ADVISED ATC, AND PROCEEDED TO DEST WITHOUT FURTHER INCIDENT.

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.