Narrative:

Aircraft #1 was assigned a heading of 340 degrees to join V327 (359 degree radial pxr) and to climb from 5000 ft MSL to maintain 13000 ft MSL. When climbing through approximately 7700 ft MSL, aircraft #1's tcasi alert sounded. The PF of aircraft #1, saw aircraft #2 out the right window at the estimated distances stated here-in. Upon first sighting of aircraft #2, aircraft #1 was turned so as to parallel aircraft #2's course. At this time, ATC assigned aircraft #1 an altitude of 8000 ft MSL. At no time did ATC tell either aircraft of a conflict. When aircraft #2 passed in front of aircraft #1 with an approximately vertical separation of 1000 ft, ATC informed aircraft #1 that aircraft #2 had 'passed behind.' the obvious resolution to this event is good pilot traffic vigilance. Although both aircraft were IFR and under ATC control, extra vigilance on both parties' parts could possibly have made this encounter occur a little farther apart. Supplemental information from acn 380901: citation departed prior to us out of phx. They were approximately 3-4 mi ahead of us on our departure. Citation was given a northwest vector to intercept the drake 6 departure, while we were given a north to nnw vector to intercept the 359 degree radial out of phx. Altitude clearance was 4000 ft then to 5000 ft. Leveled at 5000 ft, departure cleared us up to 13000 ft. Approaching 8000 ft, we received a TA from tcasi which pointed out aircraft at 1 O'clock position and less than 1000 ft above us. Our rate of climb at the time of TA was 3000 FPM. Evasive maneuvers consisted of leveling at approximately 7700-7800 ft altitude and a left approximately 30 degree heading change, as paths were converging. We advised ATC we then had aircraft Y in sight. Afterwards, ATC reclred us to 13000 ft. Considerations in this event: possible missed TA from ATC? Workload of ATC and of flight crew. Possible accuracy of radar equipment? Note: after we advised ATC we had aircraft in sight and cleared to 13000 ft, ATC advised the citation was 'passing behind and above you, should be no factor,' when actually the aircraft was still in front and above us (1 O'clock position moving to 11 O'clock position).

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Original NASA ASRS Text

Title: POTENTIAL CONFLICT BTWN A BE02 AND A CITATION JET WITH CONVERGING HEADINGS AFTER TKOF AT PHX ARPT. BE02 TCASI ALERTED FLC OF XING TFC. ONLY THEN, AFTER A TURN WAS MADE TO PARALLEL THE COURSE OF THE CITATION DID ATC ADVISE OF TFC AND CHANGE THE BE02'S ALT ASSIGNMENT. RPT INDICATES EITHER A CTLR PROB OR A RADAR DISPLAY PROB.

Narrative: ACFT #1 WAS ASSIGNED A HDG OF 340 DEGS TO JOIN V327 (359 DEG RADIAL PXR) AND TO CLB FROM 5000 FT MSL TO MAINTAIN 13000 FT MSL. WHEN CLBING THROUGH APPROX 7700 FT MSL, ACFT #1'S TCASI ALERT SOUNDED. THE PF OF ACFT #1, SAW ACFT #2 OUT THE R WINDOW AT THE ESTIMATED DISTANCES STATED HERE-IN. UPON FIRST SIGHTING OF ACFT #2, ACFT #1 WAS TURNED SO AS TO PARALLEL ACFT #2'S COURSE. AT THIS TIME, ATC ASSIGNED ACFT #1 AN ALT OF 8000 FT MSL. AT NO TIME DID ATC TELL EITHER ACFT OF A CONFLICT. WHEN ACFT #2 PASSED IN FRONT OF ACFT #1 WITH AN APPROX VERT SEPARATION OF 1000 FT, ATC INFORMED ACFT #1 THAT ACFT #2 HAD 'PASSED BEHIND.' THE OBVIOUS RESOLUTION TO THIS EVENT IS GOOD PLT TFC VIGILANCE. ALTHOUGH BOTH ACFT WERE IFR AND UNDER ATC CTL, EXTRA VIGILANCE ON BOTH PARTIES' PARTS COULD POSSIBLY HAVE MADE THIS ENCOUNTER OCCUR A LITTLE FARTHER APART. SUPPLEMENTAL INFO FROM ACN 380901: CITATION DEPARTED PRIOR TO US OUT OF PHX. THEY WERE APPROX 3-4 MI AHEAD OF US ON OUR DEP. CITATION WAS GIVEN A NW VECTOR TO INTERCEPT THE DRAKE 6 DEP, WHILE WE WERE GIVEN A N TO NNW VECTOR TO INTERCEPT THE 359 DEG RADIAL OUT OF PHX. ALT CLRNC WAS 4000 FT THEN TO 5000 FT. LEVELED AT 5000 FT, DEP CLRED US UP TO 13000 FT. APCHING 8000 FT, WE RECEIVED A TA FROM TCASI WHICH POINTED OUT ACFT AT 1 O'CLOCK POS AND LESS THAN 1000 FT ABOVE US. OUR RATE OF CLB AT THE TIME OF TA WAS 3000 FPM. EVASIVE MANEUVERS CONSISTED OF LEVELING AT APPROX 7700-7800 FT ALT AND A L APPROX 30 DEG HDG CHANGE, AS PATHS WERE CONVERGING. WE ADVISED ATC WE THEN HAD ACFT Y IN SIGHT. AFTERWARDS, ATC RECLRED US TO 13000 FT. CONSIDERATIONS IN THIS EVENT: POSSIBLE MISSED TA FROM ATC? WORKLOAD OF ATC AND OF FLC. POSSIBLE ACCURACY OF RADAR EQUIP? NOTE: AFTER WE ADVISED ATC WE HAD ACFT IN SIGHT AND CLRED TO 13000 FT, ATC ADVISED THE CITATION WAS 'PASSING BEHIND AND ABOVE YOU, SHOULD BE NO FACTOR,' WHEN ACTUALLY THE ACFT WAS STILL IN FRONT AND ABOVE US (1 O'CLOCK POS MOVING TO 11 O'CLOCK POS).

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.