A DC9-50 arrived at ZZZ with the left outboard wheel and tire missing caused by alleged improper installation. Wheel and tire assembly replaced 8 days prior to incident.

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Attributes
ACN	439044
Time
Date	199906
Day	Sun
Local Time Of Day	1201 To 1800
Place
Locale Reference	airport : zzz.airport
State Reference	US
Altitude	agl single value : 0
Environment
Light	Daylight
Aircraft 1
Operator	common carrier : air carrier
Make Model Name	McDonnell Douglas Undifferentiated or Other Model
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 : 9
ASRS Report	439044
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance non adherence : published procedure non adherence : far
Resolutory Action	none taken : detected after the fact
Consequence	other other other
Factors
Maintenance	contributing factor : schedule pressure contributing factor : lighting performance deficiency : installation performance deficiency : non compliance with legal requirements performance deficiency : repair
Supplementary
Problem Areas	Maintenance Human Performance Aircraft
Primary Problem	Maintenance Human Performance

Narrative:

On jun/xa/99 approximately AB00 hours, aircraft (air carrier) xyz arrived in ZZZ, missing the #1 main wheel/tire. As of jun/xa, AB00 hours, the wheel assembly had not been located. The aircraft arrived from abc. I was the last mechanic to install the #1 main tire on may/xy/99 approximately BA00 hours. To the best of my knowledge, I had properly installed the aircraft tire to maintenance manual standards.

Original NASA ASRS Text

Title: A DC9-50 ARRIVED AT ZZZ WITH THE L OUTBOARD WHEEL AND TIRE MISSING CAUSED BY ALLEGED IMPROPER INSTALLATION. WHEEL AND TIRE ASSEMBLY REPLACED 8 DAYS PRIOR TO INCIDENT.

Narrative: ON JUN/XA/99 APPROX AB00 HRS, ACFT (ACR) XYZ ARRIVED IN ZZZ, MISSING THE #1 MAIN WHEEL/TIRE. AS OF JUN/XA, AB00 HRS, THE WHEEL ASSEMBLY HAD NOT BEEN LOCATED. THE ACFT ARRIVED FROM ABC. I WAS THE LAST MECH TO INSTALL THE #1 MAIN TIRE ON MAY/XY/99 APPROX BA00 HRS. TO THE BEST OF MY KNOWLEDGE, I HAD PROPERLY INSTALLED THE ACFT TIRE TO MAINT MANUAL STANDARDS.

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.