Narrative:

As the on duty operations supervisor; I was monitoring the position due to aircraft X traversing the airspace. Aircraft X was direct and approximately level at 11;000 feet. Aircraft Y [was] level at 11;000 feet heading northeast. Aircraft X was switched to approach on course when I observed aircraft Y making a north turn. I advised the radar controller who was discussing something with the radar associate. The radar controller then saw the situation and aircraft Y to turn to a 090 heading. After advising the radar controller; I then advised the radar associate to call approach and have aircraft X descend or turn him west. The radar associate did talk to approach and they descended aircraft X. Aircraft Y made the turn to 090 degrees. At no time was separation lost between the two aircraft. I advised the next sector to issue a brasher warning to aircraft Y.

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Original NASA ASRS Text

Title: ZOB Supervisor observed an aircraft deviate from their course to a heading that was towards another aircraft and advised the Radar Controller.

Narrative: As the on duty Operations Supervisor; I was monitoring the position due to Aircraft X traversing the airspace. Aircraft X was direct and approximately level at 11;000 feet. Aircraft Y [was] level at 11;000 feet heading northeast. Aircraft X was switched to Approach on course when I observed Aircraft Y making a north turn. I advised the Radar Controller who was discussing something with the Radar Associate. The Radar Controller then saw the situation and Aircraft Y to turn to a 090 heading. After advising the Radar Controller; I then advised the Radar Associate to call Approach and have Aircraft X descend or turn him west. The Radar Associate did talk to Approach and they descended Aircraft X. Aircraft Y made the turn to 090 degrees. At no time was separation lost between the two aircraft. I advised the next sector to issue a brasher warning to Aircraft Y.

Data retrieved from NASA's ASRS site 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.