As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS GROUNDED: LEFT CENTER TANK LOW PRESSURE LIGHT ILLUMINATED AND STAYED ON. PERFORMED T/S IAW FIM 28-22-00-810-822. FOUND THREE LIGHTS FLASHING SIMULTANEOUSLY ON UFI. MAINTENANCE REPLACED RELAY R54 IAW WDM 28-23-11. OPS CHECK OF LH CENTER PUMP NORMAL.