Narrative:

Aircraft X was on my frequency at FL350 requested FL370, the data block was already handing off to ZAU, so I took back the handoff typed in FL370 and didn't make handoff and coordination by what appeared to be prior to the common boundary.

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Original NASA ASRS Text

Title: ZID CTLR EXPERIENCED AN OPDEV WHILE TRYING TO UPDATE DATA BLOCK INFO IMMEDIATELY PRIOR TO HDOF AND OR AIRSPACE BOUNDARY.

Narrative: ACFT X WAS ON MY FREQ AT FL350 REQUESTED FL370, THE DATA BLOCK WAS ALREADY HANDING OFF TO ZAU, SO I TOOK BACK THE HDOF TYPED IN FL370 AND DIDN'T MAKE HDOF AND COORD BY WHAT APPEARED TO BE PRIOR TO THE COMMON BOUNDARY.

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.