As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHEN LEFT CENTER TANK BOOST PUMP CAVITATES, JUST PRIOR TO LOW PRESSURE LIGHT ILLUMINATING, THE PUMP MAKES AUDIBLE GROANING SOUND, LOUDER THAN NORMAL AND THE VIBRATION CAN BE FELT THROUGH THE FLOOR. ACFT GROUNDED. R & R LT CENTER TANK BOOST PUMP IAW MM 28-22-41-000-801 AND MM 28-22-41-400-801. ACFT GROUND VERIFICATION SUCCESSFUL. COMPLETED OPS CHECK AND LEAK CHECK GOOD IAW MM ABOVE.