As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INSPECTED NEW CYLINDER ASSY TISN 71.2BCA AS RECEIVED. FOUND VALVE SEAT MACHINING NOT CONCENTRIC AND EXHAUST VALVE SEAT DIAMETER CUT TO APPX. 1.847 INCH WHEN IT SHOULD BE APPX. 1.781 INCH ACCORDING TO PRINT DIMENSIONS IN OVERHAUL MANUAL.