Narrative:

Received a 'climb' RA. Cancelled autoplt and initiated climb immediately putting ivsi needle into green arc. By the time TCASII cleared itself we had passed through 12000 and reached 12400. We started back down to 11000 and were queried by ATC. They seemed quite upset that we had left 11000 without asking them first.

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Original NASA ASRS Text

Title: MDT RECEIVED TCASII RA AND HAD TO CLB 1400 FT BEFORE THE RA SILENCED.

Narrative: RECEIVED A 'CLB' RA. CANCELLED AUTOPLT AND INITIATED CLB IMMEDIATELY PUTTING IVSI NEEDLE INTO GREEN ARC. BY THE TIME TCASII CLRED ITSELF WE HAD PASSED THROUGH 12000 AND REACHED 12400. WE STARTED BACK DOWN TO 11000 AND WERE QUERIED BY ATC. THEY SEEMED QUITE UPSET THAT WE HAD LEFT 11000 WITHOUT ASKING THEM FIRST.

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.