Narrative:

I took evasive action on a TCASII RA while on approach to runway 35R at dfw. We were assigned 4000 ft MSL to cross over a B757 at 3000 ft MSL. He was on final to runway 36L. We visually had him at 4000 ft MSL and TCASII gave us a RA - - we climbed to 4500 ft MSL. We advise approach control of the conflict -- they stated that he was at 3000 ft MSL -- we reconfirmed on TCASII and visually that he was still at 4000 ft MSL.

Google
 

Original NASA ASRS Text

Title: TCASII ALERT EVASIVE ACTION.

Narrative: I TOOK EVASIVE ACTION ON A TCASII RA WHILE ON APCH TO RWY 35R AT DFW. WE WERE ASSIGNED 4000 FT MSL TO CROSS OVER A B757 AT 3000 FT MSL. HE WAS ON FINAL TO RWY 36L. WE VISUALLY HAD HIM AT 4000 FT MSL AND TCASII GAVE US A RA - - WE CLBED TO 4500 FT MSL. WE ADVISE APCH CTL OF THE CONFLICT -- THEY STATED THAT HE WAS AT 3000 FT MSL -- WE RECONFIRMED ON TCASII AND VISUALLY THAT HE WAS STILL AT 4000 FT MSL.

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.