As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS - FUEL OVERFLOW PROT FAULT. FUEL IDG 1 COOL FAULT. (POSSIBLE FUEL LEVEL SENSE CONTROL UNIT 1). REMOVED & REPLACED FLSCU1. CONDITION SAME. REINSTALLED ORIGINAL COMPUTER. NEED FURTHER TROUBLESHOOTING/WIRE CHECKS PER TSM 28-46-00-810-812-A. REPLACED OVERFLOW SENSOR (28QJ1) PER AMM 28-46-16. BITE TEST OK. OK FOR SVC.