As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
SFO - EMERGENCY LIGHTING CAME ON DURING FLIGHT. EMERGENCY LIGHT CIRCUIT BREAKER TRIPPED AFTER LIGHT ACTIVATION. UNABLE TO RESET CIRCUIT BREAKER. MAINTENANCE DEFERRED EMERGENCY LIGHTING SYSTEM PER ;MEL 33-50-1. AIRCRAFT RETURNED TO SERVICE. MAINTENANCE SUBSEQUENTLY REPAIRED CHAFED WIRE AT FLIGHT ATTENDANTS EMERGENCY LIGHT CONTROL SWITCH. CABIN EMERGENCY LIGHTING SYSTEM OPERATIONAL CHECK NORMAL. (M)