As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
NR 1 AC GEN CAUTION LIGHT ON CLIMBOUT. RECYCLED NR 1 AC GEN SWITCH CAUTION LIGHT REMAINED ILLUMINATED. LEFT SWITCH IN OFF POSITION PER EMERGENCY CHECKLIST. MAINTENANCE INTERROGATED EPCU AND FOUND FAULT CODE 27. REPLACED NR 1 AC GCU, NO HELP. REPLACED NR 1 AC GEN. PERFORMED OPERATIONAL TEST OF THE VARIABLE FREQUENCY GEN SYSTEM, TESTED GOOD. AIRCRAFT RETURNED TO SERVICE.