As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER PUSHBACK & BOTH ENGINE START AND CHECKLIST RECALL OVERHEAD LIGHT, LOOKED UP & SAW STANDBY POWER ELEC AMBER LIGHT ON. ACFT GROUNDED. ACCOMPLISHED P5-13 BITE PROCEDURE, NOTED SPECIAL SPCU INOPERATIVE MESSAGE. CYCLED POWER TO ACFT AND ACCOMPLISHED BITE TEST IAW FIM 24-34, TASK 802. NO FAULTS NOTED, OPS CHECKED OK. ACFT APPROVED FOR RETURN TO SERVICE.