Narrative:

Scheduled MD80 FL290, received RA 'climb, climb.' departed FL290, saw another aircraft on TCASII and then visually. He in sight, in left climbing turn toward us from 10 O'clock position. Advised ATC of our RA and that we had departed our assigned altitude. We leveled FL297 and other aircraft passed beneath us registering -700 ft on TCASII. Upon our contact to ATC, the controller told other aircraft to immediately descend to FL280. We did return to FL290 when RA resolved. Flight continued on normally.

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Original NASA ASRS Text

Title: AN MD82 FLC RECEIVED A TCASII RA AND TOOK EVASIVE ACTION NEAR PSX VOR.

Narrative: SCHEDULED MD80 FL290, RECEIVED RA 'CLB, CLB.' DEPARTED FL290, SAW ANOTHER ACFT ON TCASII AND THEN VISUALLY. HE IN SIGHT, IN L CLBING TURN TOWARD US FROM 10 O'CLOCK POS. ADVISED ATC OF OUR RA AND THAT WE HAD DEPARTED OUR ASSIGNED ALT. WE LEVELED FL297 AND OTHER ACFT PASSED BENEATH US REGISTERING -700 FT ON TCASII. UPON OUR CONTACT TO ATC, THE CTLR TOLD OTHER ACFT TO IMMEDIATELY DSND TO FL280. WE DID RETURN TO FL290 WHEN RA RESOLVED. FLT CONTINUED ON NORMALLY.

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.