Narrative:

During a main landing gear tire change on aircraft xyz (MD88) on nov/xa/99, the wrong part number was installed. The part number installed was for an MD80 aircraft. Part number installed was wxxx, and should have been vyxxx. The problem arose when, during a service check, the #2 main tire was written up as being worn. I elected to perform the tire change. I looked up the procedure to remove/replace the wheel assembly. I read through the maintenance manual, looking mostly for the torques of the axle nut. Being that I have replaced numerous tires on DC9's and that I helped with MD80's, I felt fairly secure with the procedure. I did not view the ipc for proper part numbers, because I felt comfortable with the size differences between DC9 aircraft and MD80 aircraft. I then went to where the tires are located, which is on a tire cart, and saw the noticeably larger tire, which I believed was the proper tire. I was not aware of there being different tires for the -80 and -88 aircraft, and on the tire cart were 3 slots for tires -- 1 for DC9-10, 1 for DC9-30, and 1 for both MD80's or md-88's. I then installed the -80 tire on the aircraft, which fit normally. I had no problems with installation. The day after installation, on a check, it was noticed by the -80 printed on it that it was the improper tire. It was then removed, and the proper tire was installed.

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Original NASA ASRS Text

Title: AN MD88 WAS DISPATCHED IN NON COMPLIANCE WITH THE WRONG MAIN TIRE AND WHEEL ASSEMBLY INSTALLED IN #2 POS L MAIN GEAR.

Narrative: DURING A MAIN LNDG GEAR TIRE CHANGE ON ACFT XYZ (MD88) ON NOV/XA/99, THE WRONG PART NUMBER WAS INSTALLED. THE PART NUMBER INSTALLED WAS FOR AN MD80 ACFT. PART NUMBER INSTALLED WAS WXXX, AND SHOULD HAVE BEEN VYXXX. THE PROB AROSE WHEN, DURING A SVC CHK, THE #2 MAIN TIRE WAS WRITTEN UP AS BEING WORN. I ELECTED TO PERFORM THE TIRE CHANGE. I LOOKED UP THE PROC TO REMOVE/REPLACE THE WHEEL ASSEMBLY. I READ THROUGH THE MAINT MANUAL, LOOKING MOSTLY FOR THE TORQUES OF THE AXLE NUT. BEING THAT I HAVE REPLACED NUMEROUS TIRES ON DC9'S AND THAT I HELPED WITH MD80'S, I FELT FAIRLY SECURE WITH THE PROC. I DID NOT VIEW THE IPC FOR PROPER PART NUMBERS, BECAUSE I FELT COMFORTABLE WITH THE SIZE DIFFERENCES BTWN DC9 ACFT AND MD80 ACFT. I THEN WENT TO WHERE THE TIRES ARE LOCATED, WHICH IS ON A TIRE CART, AND SAW THE NOTICEABLY LARGER TIRE, WHICH I BELIEVED WAS THE PROPER TIRE. I WAS NOT AWARE OF THERE BEING DIFFERENT TIRES FOR THE -80 AND -88 ACFT, AND ON THE TIRE CART WERE 3 SLOTS FOR TIRES -- 1 FOR DC9-10, 1 FOR DC9-30, AND 1 FOR BOTH MD80'S OR MD-88'S. I THEN INSTALLED THE -80 TIRE ON THE ACFT, WHICH FIT NORMALLY. I HAD NO PROBS WITH INSTALLATION. THE DAY AFTER INSTALLATION, ON A CHK, IT WAS NOTICED BY THE -80 PRINTED ON IT THAT IT WAS THE IMPROPER TIRE. IT WAS THEN REMOVED, AND THE PROPER TIRE WAS INSTALLED.

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.