Narrative:

Aircraft X hit maars leaving dtw and turned direct aco right into an air carrier Y on an arrival to cleveland. No separation was lost; but I did have to stop altitudes and turn aircraft. It's been going on for about 1 yr.

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Original NASA ASRS Text

Title: ZOB CTLR DESCRIBED FLT CREW ROUTING ERROR RESULTING IN NEAR OPERROR; CLAIMING SIMILAR ERRORS HAVE BEEN OCCURRING FOR THE PAST YEAR.

Narrative: ACFT X HIT MAARS LEAVING DTW AND TURNED DIRECT ACO RIGHT INTO AN ACR Y ON AN ARR TO CLEVELAND. NO SEPARATION WAS LOST; BUT I DID HAVE TO STOP ALTS AND TURN ACFT. IT'S BEEN GOING ON FOR ABOUT 1 YR.

Data retrieved from NASA's ASRS site as of May 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.