Narrative:

Aircraft #2 was level at FL290 nebound. Aircraft #1 departed oma swbound climbing to FL230. Aircraft #1 was issued FL310, its requested altitude. Coordination was performed for aircraft #1 climbing to FL280 with the ZKC 24 controller. The conflict happened when aircraft #1 climbed through FL283.

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Original NASA ASRS Text

Title: ZMP CTLR EXPERIENCED OPERROR AT FL290 WHEN CLBING ACFT THROUGH ALT OF CRUISE ACFT.

Narrative: ACFT #2 WAS LEVEL AT FL290 NEBOUND. ACFT #1 DEPARTED OMA SWBOUND CLBING TO FL230. ACFT #1 WAS ISSUED FL310, ITS REQUESTED ALT. COORD WAS PERFORMED FOR ACFT #1 CLBING TO FL280 WITH THE ZKC 24 CTLR. THE CONFLICT HAPPENED WHEN ACFT #1 CLBED THROUGH FL283.

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.