As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CLIMBOUT NR 1 ENGINE NACELLE LOOPS A & B WENT INTO THE RED - SET BELL OFF - ENGINE SHUT DOWN OIL PRESSURE 45 PSI. REPLACED ENGINE PRESSURE REGULATING VALVE, LEAK CHECK OK. OPS CHECKED OK DURING ENGINE HIGH POWER ASSURANCE RUN, MM 36-11-19 & MM 36-11-00 AND TESTED PER MM 71-00-00 TEST NR 4.