"G.R. Patterson III" wrote
You're expecting a manufacturer to spend hundreds of thousands of dollars to
research a report which provides no benefit to the manufacturer.

A report that showed that the engine was extremely reliable when
maintained and overhauled in accordance with the manufacturer's
recommendations (that's all SB's/TBO's are to Part 91 operators) would
have great benefit to the manufacturer.

Of course I don't believe that's what the report will show.

Michael