As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE THE NR 1 ENG START VALVE ILLUMINATED. FOLLOWED THE POM AND SHUT DOWN ENGINE. OIL PRESSURE AT 37 PSI FOR 1 HOUR AND 10 MINUTES. REPLACED NR 1 ENG. START VALVE AND PRESSURE SWITCH RAN ENG. CK NORMAL. PERFORMED WINDMILLING INSPECTION PER M/M.