Narrative:

Our TCASII ordered a RA. At this time we followed a climb command and vacated 14000 ft to approximately 14800 ft. When clear of conflict, we descended back down to 14000 ft and reported this to center. They said that they needed nothing in reference to the event. We (captain and myself) never did see the traffic visually and at no time were alerted by the center controller.

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Original NASA ASRS Text

Title: TCASII RA CREATES AN ALT DEV ALT EXCURSION BY ACR FO.

Narrative: OUR TCASII ORDERED A RA. AT THIS TIME WE FOLLOWED A CLB COMMAND AND VACATED 14000 FT TO APPROX 14800 FT. WHEN CLR OF CONFLICT, WE DSNDED BACK DOWN TO 14000 FT AND RPTED THIS TO CENTER. THEY SAID THAT THEY NEEDED NOTHING IN REF TO THE EVENT. WE (CAPT AND MYSELF) NEVER DID SEE THE TFC VISUALLY AND AT NO TIME WERE ALERTED BY THE CENTER CTLR.

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.