Narrative:

ZJX issued clearance to cross 90 mi out of omn (112.6) at FL310. We were at FL350. At 87 mi, controller called and said, I must have missed your readback to cross 90 mi out at FL310. So we descended to FL310. No other comments. Center frequency 132.42. We were approximately 150 mi out at the time of clearance and just missed the descent.

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Original NASA ASRS Text

Title: ACR FLC FAILED TO EXECUTE ALT RESTR AS INSTRUCTED BY ZJX.

Narrative: ZJX ISSUED CLRNC TO CROSS 90 MI OUT OF OMN (112.6) AT FL310. WE WERE AT FL350. AT 87 MI, CTLR CALLED AND SAID, I MUST HAVE MISSED YOUR READBACK TO CROSS 90 MI OUT AT FL310. SO WE DSNDED TO FL310. NO OTHER COMMENTS. CTR FREQ 132.42. WE WERE APPROX 150 MI OUT AT THE TIME OF CLRNC AND JUST MISSED THE DSCNT.

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.