As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH MAIN FUEL QUANTITY INDICATOR INTERMITTENTLY BLANK. GROUNDED - YES. FOUND W1140-001TX-20 GROUND WIRE BROKEN. RETERMINATED W1140-001TX-20 GROUND PER SWPM 20-30-00. INSTALLED BUSSING PLUG ON LH MAIN FUEL TANK PER B737-800 AMM 28-41-41-400-801, OPERATIONAL TEST SUCCESSFUL. GROUND VERIFICATION SUCCESSFUL. NO FAULTS FOUND.