As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AT CRUISE CREW REPORTED TANK 1 FUEL QUANTITY WENT FROM DASHES TO 0 IN FLIGHT. CREW DECLARED FUEL EMERGENCY TO GET PRIORITY HANDLING. ACFT REMOVED FROM SERVICE. PERFORMED TROUBLESHOOTING IN REF TO FIM 27-43-0-810-802-A REMOVED AND REPLACED BACK UP SYSTEM CUT OUT SWITCH. OPS CHECK GOOD IAW AMM 27-40-00. OPS CHECK GOOD. ACFT RETURNED TO SERVICE. (K)