Narrative:

Established cruise at FL330. Got a TCASII TA at 12 O'clock/2 NM. Followed immediately by a twice repeated RA and ADI guidance to descend. First officer disconnected 'B' autoplt and descended to FL32.5. Captain notified ATC on radio and was given confirmation of 'no traffic in the area.' advised ATC we were at FL32.5 and climbing back to FL330. No other comments to or from ATC.

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Original NASA ASRS Text

Title: FLC OF AN MLG DSNDED FROM HIGH ALT CRUISE IN RESPONSE TO A TCASII RA.

Narrative: ESTABLISHED CRUISE AT FL330. GOT A TCASII TA AT 12 O'CLOCK/2 NM. FOLLOWED IMMEDIATELY BY A TWICE REPEATED RA AND ADI GUIDANCE TO DSND. FO DISCONNECTED 'B' AUTOPLT AND DSNDED TO FL32.5. CAPT NOTIFIED ATC ON RADIO AND WAS GIVEN CONFIRMATION OF 'NO TFC IN THE AREA.' ADVISED ATC WE WERE AT FL32.5 AND CLBING BACK TO FL330. NO OTHER COMMENTS TO OR FROM ATC.

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.