Narrative:

We were established on localizer and GS for ILS runway 26 phx at 3600 ft MSL (after iagal intersection and prior to prunn intersection). Aircraft Y was on approach to runway 25 phx. Aircraft Y strayed towards our approach course. We received a TCASII RA to climb. We complied immediately with climb advisory. Air carrier Y closed to within 200 ft vertically and approximately 300 ft laterally to the aft, and overtaking our aircraft. We landed with no further incident.

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Original NASA ASRS Text

Title: AN A320 CAPT ON APCH FOR PHX'S RWY 26 RPTED THAT ANOTHER ACR ACFT OVERSHOT THE PARALLEL RWY 25 CTRLINE, CAUSING A TCASII RA.

Narrative: WE WERE ESTABLISHED ON LOC AND GS FOR ILS RWY 26 PHX AT 3600 FT MSL (AFTER IAGAL INTXN AND PRIOR TO PRUNN INTXN). ACFT Y WAS ON APCH TO RWY 25 PHX. ACFT Y STRAYED TOWARDS OUR APCH COURSE. WE RECEIVED A TCASII RA TO CLB. WE COMPLIED IMMEDIATELY WITH CLB ADVISORY. ACR Y CLOSED TO WITHIN 200 FT VERTLY AND APPROX 300 FT LATERALLY TO THE AFT, AND OVERTAKING OUR ACFT. WE LANDED WITH NO 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.