As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING PERFORMANCE OF SB 388C, FOUND NR 2 CYLINDER EXHAUST VALVE TO GUIDE CLEARANCE MEASURED .032". EXCEEDS THE MAXIMUM ALLOWABLE CLEARANCE OF .030". NR 2 CYLINDER OVERHAULED 502.1 HOURS AGO. MAINTENANCE INSTALLED A NEW, EXHAUST VALVE GUIDE DURING OVERHAUL.