NONE · BOEING 737-222 · 1995-04-07 · CHICAGO, IL, USA
Event
NTSB number
CHI95IA119
Event ID
20001207X03252
Type
Incident
Date
1995-04-07
Location
CHICAGO, IL, USA
Injuries
Highest injury
NONE
Fatal
0
Serious
0
Minor
0
Uninjured
116
Total aboard
116
Aircraft
Make
BOEING
Model
737-222
Registration
N9090U
FAR Part
121
Engines
2
Damage
MINR
Conditions
Light
DAYL
Weather
VMC
Probable cause
the inadequacy or deterioration of lubricating grease in the wheel bearing, which led to the total bearing failure and subsequent loss of the wheel. Factors were the insufficiently defined procedures for repacking the bearing, along with an insufficient method of retaining lubricant within the bearing.