As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ETOPS SIGNIFICANT SYS - ON POST FLIGHT FOUND ENGINE NR 2 GENERATOR FIELD OFF LIGHT ILLUMINATED. ACCOMPLISHED BPCU BITE CHECK IAW AMM 24-22-00-745-071. RERACKED GCU. RESET RT GENERATOR FIELD LIGHT. RT ENGINE GROUND RUN-UP OK. SYS VOLTAGE AND FREQUENCY NORMAL.