Narrative:

Aircraft X was in maintenance with contracted maintenance servicer at the same time as aircraft Y. A technician with contracted maintenance servicer apparently was confused on which aircraft required the left hand outboard main wheel to be changed due to wear. Aircraft X actually required the wheel change but the technician removed the main wheel assembly from aircraft Y. [While] changing the parts in maintenance management software; I noticed that the serial number of wheel assembly coming off was not what we were tracking in maintenance management software (sn X). There paper work stated (sn Y). I contacted the contractor and asked them to verify the removed serial number. The double check and it was actually sn Y; not knowing that they actually removed it from the wrong tail number; I released the aircraft from maintenance. The technician should have paid closer attention to which aircraft required the wheel change. I should have researched further the history of the removed wheel serial number.

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Original NASA ASRS Text

Title: A&P Mechanic reported upon review; main gear tire was replaced on wrong aircraft by technician.

Narrative: Aircraft X was in maintenance with contracted maintenance servicer at the same time as Aircraft Y. A technician with contracted maintenance servicer apparently was confused on which aircraft required the left hand outboard main wheel to be changed due to wear. Aircraft X actually required the wheel change but the technician removed the main wheel assembly from Aircraft Y. [While] changing the parts in maintenance management software; I noticed that the serial number of wheel assembly coming off was not what we were tracking in maintenance management software (SN X). There paper work stated (SN Y). I contacted the contractor and asked them to verify the removed serial number. The double check and it was actually SN Y; not knowing that they actually removed it from the wrong tail number; I released the aircraft from maintenance. The technician should have paid closer attention to which aircraft required the wheel change. I should have researched further the history of the removed wheel serial number.

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.