<< >> NASA ASRS Report 860110, November 2009

After removing the # 2 and # 3 main wheels on a crj-200 for wear; a mechanic notices the inboard and outboard wheel halfs had different serial numbers (south/north). Mechanic questions how the wheel vendor keeps the correct bearing with the wheel half; when the serial numbers are not the same.

Attributes
ACN	860110
Time
Date	200911
Local Time Of Day	0601-1200
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Daylight
Aircraft 1
Make Model Name	Regional Jet 200 ER/LR (CRJ200)
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Main Gear Wheel
Person 1
Function	Technician
Qualification	Maintenance Airframe Maintenance Powerplant
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

Narrative:

Removed # 2 and 3 main wheels for wear on crj-200. Could not read serial numbers completely on wheel outboard half. Turned wheel over and serial number was completely different. I was wondering how they keep the wheel bearings with the correct wheel (half) when the serial numbers are not the same.suggest having better; or (at least) some oversight on outside wheel vendors.

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Original NASA ASRS Text

Title: After removing the # 2 and # 3 Main Wheels on a CRJ-200 for wear; a Mechanic notices the inboard and outboard Wheel halfs had different Serial Numbers (S/N). Mechanic questions how the Wheel Vendor keeps the correct bearing with the Wheel Half; when the Serial Numbers are not the same.

Narrative: Removed # 2 and 3 Main Wheels for wear on CRJ-200. Could not read Serial Numbers completely on Wheel outboard Half. Turned Wheel over and Serial Number was completely different. I was wondering how they keep the Wheel bearings with the correct Wheel (Half) when the Serial Numbers are not the same.Suggest having better; or (at least) some Oversight on Outside Wheel Vendors.

Data retrieved from NASA's ASRS site as of April 2012 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.