As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR INTERRUPT, EMER DECLARED, LANDING UNEVENTFUL & ACFT WAS NOT OVERWEIGHT. STANDBY POWER OFF LIGHT ILLUMINATED AT FL370 WITH LOSS OF PAX ADDRESS SYS. DIVERTED & ON LANDING FOUND STANDBY POWER CONTROL UNIT CB OUT. REPLACED STANDBY POWER CONTROL UNIT IAW MM 24-34-11. SYS CHECKED NORMAL.