Narrative:

When I came on shift at XA00, I was given aircraft X to perform maintenance upon. #2 center and #4 center tires had been written up for FOD damage, so I went into the tire storage area for new tires. The 777B tire rack is adjacent to the 777A rack. I pulled the 2 tires out of the heavy tire rack and took them outside, and installed them on the aircraft in the dark. I later received an e-mail from a ZZZ1 supervisor about the flight delay and tire change there, because 1 of the tires had actually been a 777A light tire that had been put in the wrong rack.

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Original NASA ASRS Text

Title: A B777-200 WAS DISPATCHED IN NON COMPLIANCE WITH #4 CTR TIRE REPLACED WITH A LIGHT TIRE.

Narrative: WHEN I CAME ON SHIFT AT XA00, I WAS GIVEN ACFT X TO PERFORM MAINT UPON. #2 CTR AND #4 CTR TIRES HAD BEEN WRITTEN UP FOR FOD DAMAGE, SO I WENT INTO THE TIRE STORAGE AREA FOR NEW TIRES. THE 777B TIRE RACK IS ADJACENT TO THE 777A RACK. I PULLED THE 2 TIRES OUT OF THE HEAVY TIRE RACK AND TOOK THEM OUTSIDE, AND INSTALLED THEM ON THE ACFT IN THE DARK. I LATER RECEIVED AN E-MAIL FROM A ZZZ1 SUPVR ABOUT THE FLT DELAY AND TIRE CHANGE THERE, BECAUSE 1 OF THE TIRES HAD ACTUALLY BEEN A 777A LIGHT TIRE THAT HAD BEEN PUT IN THE WRONG RACK.

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.