As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IN FLIGHT, PILOT NOTICED FLUCTUATING OIL PRESSURE AND TORQUE. PRECAUTIONARY LANDING MADE, FOLLOWING TROUBLESHOOTING ENGINE WAS DISASSEMBLIED GEARBOX SCAVENGE OIL PUMP WAS CRACKED. APPROXIMATELY 7 HOURS PRIOR, THE NR 8 STAINLESS OIL SCAV. LINE CRACKED. APPROXIMATELY 7 HOURS PRIOR THE NR 8 STAINLESS OIL SCAV LINE CRACKED. IT IS BELIEVED OIL PRESSURE CYCLING FROM LINE FAILURE FRACTURED SCAV PUMP HSG REPLACED PUMP. (K)