Narrative:

Departing from mco and under control from orl departure. We were stable at the clearance altitude 8000 ft and heading 270 degrees. First officer was flying. ATC calls traffic at 2 O'clock position and 9000 ft. We quickly located traffic and reply to ATC that we have the traffic in sight. Immediately I notice the vertical separation appears less than 1000 ft. As soon as I notice this; I see the conflict aircraft start an aggressive pitch-up and climb. We instantly get an RA to descend; which the first officer followed. At about 7650 ft; we received a clear of conflict message. As soon as we started the descent; I called ATC to inform them of the RA and our descent to comply with it. After the clear of conflict message; we climbed back to 8000 ft. I asked ATC if they had a problem with anything we did during the conflict and the reply was no; everything you did was fine and that they lost separation between us. Once we landed; I was told to call mco ATC. I called them and they really didn't have much to say about the incident except to ask if we were going to file a report. I again asked them if they had a problem with any of our actions; and again the answer was no; everything you did was fine. I'm not sure what the other aircraft's clearance was. Supplemental information from acn 736756: at that moment I looked at the TCAS and recall seeing about a +500 ft separation from the other aircraft.

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Original NASA ASRS Text

Title: B737 FLT CREW ISSUED TRAFFIC ADVISORY FOR TRAFFIC 1000 FT ABOVE. TCAS INDICATED 500 FT SEPARATION FOLLOWED BY TCAS RA DESCEND.

Narrative: DEPARTING FROM MCO AND UNDER CTL FROM ORL DEP. WE WERE STABLE AT THE CLRNC ALT 8000 FT AND HDG 270 DEGS. FO WAS FLYING. ATC CALLS TFC AT 2 O'CLOCK POS AND 9000 FT. WE QUICKLY LOCATED TFC AND REPLY TO ATC THAT WE HAVE THE TFC IN SIGHT. IMMEDIATELY I NOTICE THE VERT SEPARATION APPEARS LESS THAN 1000 FT. AS SOON AS I NOTICE THIS; I SEE THE CONFLICT ACFT START AN AGGRESSIVE PITCH-UP AND CLB. WE INSTANTLY GET AN RA TO DSND; WHICH THE FO FOLLOWED. AT ABOUT 7650 FT; WE RECEIVED A CLR OF CONFLICT MESSAGE. AS SOON AS WE STARTED THE DSCNT; I CALLED ATC TO INFORM THEM OF THE RA AND OUR DSCNT TO COMPLY WITH IT. AFTER THE CLR OF CONFLICT MESSAGE; WE CLBED BACK TO 8000 FT. I ASKED ATC IF THEY HAD A PROB WITH ANYTHING WE DID DURING THE CONFLICT AND THE REPLY WAS NO; EVERYTHING YOU DID WAS FINE AND THAT THEY LOST SEPARATION BTWN US. ONCE WE LANDED; I WAS TOLD TO CALL MCO ATC. I CALLED THEM AND THEY REALLY DIDN'T HAVE MUCH TO SAY ABOUT THE INCIDENT EXCEPT TO ASK IF WE WERE GOING TO FILE A RPT. I AGAIN ASKED THEM IF THEY HAD A PROB WITH ANY OF OUR ACTIONS; AND AGAIN THE ANSWER WAS NO; EVERYTHING YOU DID WAS FINE. I'M NOT SURE WHAT THE OTHER ACFT'S CLRNC WAS. SUPPLEMENTAL INFO FROM ACN 736756: AT THAT MOMENT I LOOKED AT THE TCAS AND RECALL SEEING ABOUT A +500 FT SEPARATION FROM THE OTHER ACFT.

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.