Cessna Critical Service Bulletin 07-1A
What are your thoughts on this? My take-away is that it's essentially a very thorough oil & filter change with a detailed inspection of both the used oil and cutting open the filter. But as a mandatory SB, it now sounds like cutting the filter and some sort of oil inspection is required at every change. The mechanic only gets called in if you find something, correct?
My other question relates to the actual piston pin bushing installed. Does it matter where these bushings were sourced, or is the problem related to the support any bushing receives from the piston and rod? Our club has two singles, a 182H and 150G, both with recent top end overhauls, and new Superior cylinders all around. We've been getting about 30-40 hours a month on each plane since a great recruitment drive last fall. We've been inspecting the filters and sending an oil sample out for analysis - so far all good. I know the 182 has two drain plugs, so with the quick drain on one side I was contemplating getting a magnetic plug for the other. I'm not certain on the 150 as I've never had the lower cowl off, but it has a quick drain on it now.