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Haz:
You probably have thought already about what I am going to say for the sake of other readers.
When the IMS bearing begins to fail, steel pieces get disbursed throughout the lubrication channels by the flow of oil. As these pieces travel though the engine, they can score parts that they come in contact with or lodge in various lubrication channels. Some, but not necessarily all, will end up in the filter and some in the oil pan. Once this happens, the worry becomes: 1) have the pieces damaged internal engine parts already and 2) will clogged lubrication channels lead internal damage in the future. It's hard to know.
At this point, the owner has several choices. One, he can clean out the pan and put a new filter in an hope the engine will last many more miles. Two, he can buy a new or refurbished engine and hope that it will last. Three, he can tear down his own engine, look for damage, clean it throughly, replace damaged parts and reassemble it.
If it were me and I chose option one, I would want the shop to tell me what it can to do assure me that there isn't additional internal damage beyond the IMS bearing itself and what steps they will take to flush out the lubrication system.
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