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1) Condition monitoring identified bearing damage in one of the fans used to regulate air pressure in an offshore gas platform. 2) Vibration analysis showed rising levels and spectral activity indicating damage to the outer race of the bearing. 3) Replacing the damaged bearing corrected the initial problem, but revealed the fan was now out of balance due to other worn components after years of use. 4) Inspection of the fan will be needed to determine if replacement or rebalancing is required to fully res
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