Narrative:

On visual approach to runway 17R we received a TA. The TA then progressed to an RA advising us to climb. I climbed the aircraft and then obtained visual confirmation of the intruder aircraft. It was an rj which was cleared for runway 18L; but was crossing our final for runway 17R. We followed the instructions of the TCAS until we were clear of the conflict.

Google
 

Original NASA ASRS Text

Title: E145 FLT CREW RECEIVES A TCAS RA ON FINAL APCH TO MCO.

Narrative: ON VISUAL APCH TO RWY 17R WE RECEIVED A TA. THE TA THEN PROGRESSED TO AN RA ADVISING US TO CLB. I CLBED THE ACFT AND THEN OBTAINED VISUAL CONFIRMATION OF THE INTRUDER ACFT. IT WAS AN RJ WHICH WAS CLRED FOR RWY 18L; BUT WAS XING OUR FINAL FOR RWY 17R. WE FOLLOWED THE INSTRUCTIONS OF THE TCAS UNTIL WE WERE CLR OF THE CONFLICT.

Data retrieved from NASA's ASRS site as of January 2009 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.