Narrative:

Climbing; cleared to FL330. Passing FL317; center called 'descend to FL310 in 15 seconds.' we advised unable to comply in that time; considering reversing the direction of the aircraft. Continued to approximately FL322 before direction was reversed and descent actually began. TCASII RA issued and complied with. Other aircraft (air carrier) was at FL320 I presume.

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Original NASA ASRS Text

Title: B757 IN CLB TO FL330 RESPONDS TO ATC REQUEST TO DSND AND SUBSEQUENTLY COMPLIES WITH TCASII RA FOR TFC AT FL320.

Narrative: CLBING; CLRED TO FL330. PASSING FL317; CTR CALLED 'DSND TO FL310 IN 15 SECONDS.' WE ADVISED UNABLE TO COMPLY IN THAT TIME; CONSIDERING REVERSING THE DIRECTION OF THE ACFT. CONTINUED TO APPROX FL322 BEFORE DIRECTION WAS REVERSED AND DSCNT ACTUALLY BEGAN. TCASII RA ISSUED AND COMPLIED WITH. OTHER ACFT (ACR) WAS AT FL320 I PRESUME.

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.