Oilite (copper) thrust bearings in a gear are typically a component of the clutch packs. Shaft and gears are in tapered roller bearings not containing copper. At least in the ZF gears I've seen. Copper thrust washers have tangs to prevent them from spinning in their aluminum housing so if the bearing is turning on the aluminum then the indication as shown but it would be a lot more aluminum IMO. Additionally copper based thrust washers have a babbitt coating so Tin and Lead would also be an indication. The copper can also be from the gear oil cooler and corrosion there; this is a lot of copper. Significant copper from an oil cooler will usually be accompanied with the elements from the raw water. Like the reports state the oil age (hours) and type are needed.
At this point I'd have the broker notify the owner of the analysis' and try to get more data on the oil. Secondly, if the mechanic did not change the oil, I'd get another validation sample. It takes running the boat to get gear oil up to temperature for a good sample...
At this point I'd have the broker notify the owner of the analysis' and try to get more data on the oil. Secondly, if the mechanic did not change the oil, I'd get another validation sample. It takes running the boat to get gear oil up to temperature for a good sample...