An L1011-250 had the #2 main tire replaced with the incorrect tire and wheel assembly.

Attributes
ACN	445225
Time
Date	199908
Day	Mon
Local Time Of Day	0001 To 0600
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Night
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	L-1011-1 100/200/250
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance ground : parked
Flight Plan	IFR
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Experience	maintenance technician : 5
ASRS Report	445225
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Events
Anomaly	aircraft equipment problem : less severe maintenance problem : improper maintenance non adherence : far non adherence : published procedure
Consequence	other
Factors
Maintenance	contributing factor : schedule pressure performance deficiency : inspection performance deficiency : installation performance deficiency : scheduled maintenance
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

On a #2 layover on an L1011-250 a co-worker and I replaced the 2R main landing gear tire because of worn limits. Instead of putting on an L1011-250 tire, I replaced it with an L1011-100 tire. I was not aware of the differences. I have looked in the maintenance manual and read where the differences are for each series. It was discovered by the wheel shop that the serial numbers weren't right and they sent notice to maintenance control and the duty mgrs. It was changed before the flight and caused no delay.

Original NASA ASRS Text

Title: AN L1011-250 HAD THE #2 MAIN TIRE REPLACED WITH THE INCORRECT TIRE AND WHEEL ASSEMBLY.

Narrative: ON A #2 LAYOVER ON AN L1011-250 A CO-WORKER AND I REPLACED THE 2R MAIN LNDG GEAR TIRE BECAUSE OF WORN LIMITS. INSTEAD OF PUTTING ON AN L1011-250 TIRE, I REPLACED IT WITH AN L1011-100 TIRE. I WAS NOT AWARE OF THE DIFFERENCES. I HAVE LOOKED IN THE MAINT MANUAL AND READ WHERE THE DIFFERENCES ARE FOR EACH SERIES. IT WAS DISCOVERED BY THE WHEEL SHOP THAT THE SERIAL NUMBERS WEREN'T RIGHT AND THEY SENT NOTICE TO MAINT CTL AND THE DUTY MGRS. IT WAS CHANGED BEFORE THE FLT AND CAUSED NO DELAY.

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.