As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PILOT REPORTED RIGHT ENGINE SURGE 1 INCH MANIFOLD PRESSURE DURING TAKE OFF POWER USE. MAINTENANCE INSPECTED AND REPLACED THE NR 3 CYLINDER ASSEMBLY, AS WELL AS THE NR 1 & NR 3 CYLINDER EXHAUST AND INTAKE HYDRAULIC LIFTERS. FURTHER DISASSEMBLY OF THE CYLINDER ASSEMBLY FOUND VALVE GUIDE DAMAGE.