Narrative:

Training was in progress at the farmm/malta (74/77) sector. Departure traffic from C90 was a little unusual; where they were being vectored into the arrival sector (farmm-74) before being turned back into the departure sector (malta-77). There were no arrivals into ord so it really wasn't much of a factor. Trainee gets a call from rfd approach asking for control on aircraft X. This is when the data block for aircraft X populated on our scope at 12000. The aircraft was around the fytte waypoint at 12000 and our altitudes are 11000-FL230. From what I can assume is that C90 also vectored that departure to the north; just like all the other aircraft; and climbed the aircraft to 12000; which is farmms airspace. Had the aircraft stayed in the departure sector; it never would have been a factor because malta owns 13000-FL230.C90 needs to be more aware of where they are vectoring aircraft and what the altitudes are in the surrounding sectors.

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Original NASA ASRS Text

Title: ZAU Center Controller reported that a C90 TRACON Controller climbed an aircraft into the Center's airspace without coordination.

Narrative: Training was in progress at the FARMM/MALTA (74/77) sector. Departure traffic from C90 was a little unusual; where they were being vectored into the arrival sector (FARMM-74) before being turned back into the departure sector (MALTA-77). There were no arrivals into ORD so it really wasn't much of a factor. Trainee gets a call from RFD approach asking for control on Aircraft X. This is when the data block for Aircraft X populated on our scope at 12000. The aircraft was around the FYTTE waypoint at 12000 and our altitudes are 11000-FL230. From what I can assume is that C90 also vectored that departure to the North; just like all the other aircraft; and climbed the aircraft to 12000; which is FARMMs airspace. Had the aircraft stayed in the departure sector; it never would have been a factor because MALTA owns 13000-FL230.C90 needs to be more aware of where they are vectoring aircraft and what the altitudes are in the surrounding sectors.

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.