An aircraft maintenance technician (amt) was informed he had installed an inner wheel bearing at the...

Narrative:

I changed three main tires on aircraft that night. [I] had the work card with me. I just got complacent and just made sure the number-4 tire had the inner bearing on and didn't look at the outer [bearing] on. I must have gotten two inner [bearings] from [parts] stock. Upon landing; the brake seemed to fade in ZZZ1; [so maintenance] took off the wheel and found that two inner bearings were installed [at the outer bearing position]. I was complacent and didn't make sure the outer bearing was the outer bearing. The one from stock wasn't an outer bearing. Not really sure; I think the main landing gear (medium large transport) shock strut was changed; the tire was [replaced]. Was my fault; I need to take my time and look at both bearings. Aircraft damage.

Original NASA ASRS Text

Title: An Aircraft Maintenance Technician (AMT) was informed he had installed an inner wheel bearing at the outer wheel bearing position for # 4 Main tire on a DHC-8 aircraft. Brakes seemed to fade upon landing after Mechanic had replaced three main tires.

Narrative: I changed three main tires on aircraft that night. [I] had the work card with me. I just got complacent and just made sure the Number-4 tire had the inner bearing on and didn't look at the outer [bearing] on. I must have gotten two inner [bearings] from [Parts] stock. Upon landing; the brake seemed to fade in ZZZ1; [so Maintenance] took off the wheel and found that two inner bearings were installed [at the outer bearing position]. I was complacent and didn't make sure the outer bearing was the outer bearing. The one from stock wasn't an outer bearing. Not really sure; I think the Main Landing Gear (MLG) Shock Strut was changed; the tire was [replaced]. Was my fault; I need to take my time and look at both bearings. Aircraft damage.

Data retrieved from NASA's ASRS site as of July 2013 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.

Attributes
ACN	1084836
Time
Date	201304
Local Time Of Day	1801-2400
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Light	Night
Aircraft 1
Make Model Name	Dash 8 Series Undifferentiated or Other Model
Operating Under FAR Part	Part 121
Flight Phase	Parked
Component
Aircraft Component	Main Gear Tire
Person 1
Function	Technician
Qualification	Maintenance Powerplant Maintenance Airframe
Events
Anomaly	Aircraft Equipment Problem Critical Deviation - Procedural Published Material / Policy

An aircraft maintenance technician (amt) was informed he had installed an inner wheel bearing at the outer wheel bearing position for # 4 main tire on a dhc-8 aircraft. Brakes seemed to fade upon landing after mechanic had replaced three main tires.