As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
CREW REPORTED LOW SUCTION LIGHT ON ANNUNCIATOR AND SUCTION GAUGE READ ZERO WITH RIGHT ENGINE RUNNING. AIRCRAFT WAS FERRIED TO HOT MAINTENANCE BASE. MECHANIC REMOVED AND REPLACED THE RT ENGINE CHECK VALVE. OPS CHECKED GOOD, ENGINE RUN PERFORMED, ALL CHECKS WERE NORMAL. AIRCRAFT WAS RETURNED TO SERVICE.