A B757-200 technician reports finding a broken tie bolt on #3 wheel and tire assembly. Reports a greater frequency of tie bolt failures since outsourcing tire buildup.

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Attributes
ACN	668808
Time
Date	200508
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
Controlling Facilities	tower : tol.tower
Operator	common carrier : air carrier
Make Model Name	B757-200
Operating Under FAR Part	Part 121
Flight Phase	ground : maintenance
Person 1
Affiliation	company : air carrier
Function	maintenance : technician
Qualification	technician : powerplant technician : airframe
Experience	maintenance lead technician : 20
ASRS Report	668808
Person 2
Affiliation	company : air carrier
Function	maintenance : technician
Events
Anomaly	aircraft equipment problem : critical maintenance problem : improper maintenance maintenance problem : improper documentation non adherence : far non adherence : published procedure
Independent Detector	other other : 1
Resolutory Action	none taken : detected after the fact
Factors
Maintenance	contributing factor : work cards performance deficiency : training performance deficiency : unqualified personnel performance deficiency : non compliance with legal requirements performance deficiency : logbook entry performance deficiency : installation performance deficiency : inspection
Supplementary
Problem Areas	Environmental Factor Maintenance Human Performance Aircraft Chart Or Publication
Primary Problem	Maintenance Human Performance

Narrative:

We found a broken tie bolt on #3 main wheel. Our company has outsourced the maintenance/rebuild of our wheel and tire assemblies. There has been a rash of these. I have seen more broken wheel tie bolts within the past yr than I have seen in the rest of my 16 yrs as an a&P at air carrier.

Original NASA ASRS Text

Title: A B757-200 TECHNICIAN RPTS FINDING A BROKEN TIE BOLT ON #3 WHEEL AND TIRE ASSEMBLY. RPTS A GREATER FREQUENCY OF TIE BOLT FAILURES SINCE OUTSOURCING TIRE BUILDUP.

Narrative: WE FOUND A BROKEN TIE BOLT ON #3 MAIN WHEEL. OUR COMPANY HAS OUTSOURCED THE MAINT/REBUILD OF OUR WHEEL AND TIRE ASSEMBLIES. THERE HAS BEEN A RASH OF THESE. I HAVE SEEN MORE BROKEN WHEEL TIE BOLTS WITHIN THE PAST YR THAN I HAVE SEEN IN THE REST OF MY 16 YRS AS AN A&P AT ACR.

Data retrieved from NASA's ASRS site as of January 2009 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.