As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ELEC STANDBY SYS ELECTRICAL DC-STANDBY POWER SYSTEM FAILED THE SYSTEM SELF-CHECK. STATUS MSG-2413074 INACTV DC INTER MSG-2413056 ACTIVE DC MODE. ACP'D FIM 24-33 TASK 806, MSG ACTIVE. REPLACED DC STDBY CARD M24406A12 AND STATIC INVERTER M2 4016 REF MM, MSG NOT ACTIVE, TESTS OKAY.