As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
120 KTS STBY BUS OFF LIGHT ILLUMINATED. SELECTED STBY POWER SELECTOR TO BATTERY, OFF LIGHT WENT OUT AND DISCHARGE LIGHT ILLUMINATED. SUPPLEMENTAL DATA UPDATE REPLACED BROKEN CONNECTOR AT DC STANDBY BUSS OFF CIRCUIT BREAKER 6A3. (BOEING SPEC BACC45FT18-8P7)