As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FLT 3978. IN FLIGHT AC ESSENTIAL FEED CIRCUIT BREAKER TRIPPED. CIRCUIT BREAKER PANEL 1 C2 ASSOCIATED AC ESS SWITCH ILLUMINATED COMPLIED WITH QRH. GEN 1 WILL NOT RESET. RESET CIRCUIT BREAKER ON PANEL 1 C2 PERFORMED OPS CHECK OF AC BUSS 1 SYSTEM OPS CHECK GOOD IAW AMM 24-20-00