“We found a cracked cylinder head (P/N TISN71.2BCA) while doing a 50 hour inspection,” writes this operator.

“Due to the number of cylinder head failures (...our fleet is experiencing), we are doing compression checks at each scheduled inspection: 50 hours.” (This was number 5 cylinder on the left engine for a Cessna 402B. The
following item is also related to this operator.)

Part Total Time: 870.0 hours.