A bronze bearing liner with a lead-tin flashing has a milky-white color over most of its surface and some areas of exposed bronze. The white coloring indicates __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — water contamination of the lube oil system
Water contamination in the lube oil system reacts chemically or mechanically with bearing overlay metals, causing a milky-white discoloration and deterioration of the lead-tin flashing.
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