As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AFTER ENGINE START ON PUSHBACK OVERHEAD ELEC LIGHT ILLUMINATED. GROUNDED - YES. ACCOMPLISHED P5-13 ELEC BITE REF B737-900 FIM 24-31 TASK 801 AUX BATTERY CHARGER FAULTED, STATIC INVERTER, SPCU FAULTED. ATTEMPTED TO CLEAR FAULTS SPCU AND AUX BAT CHARGER CLEARED STATIC INVERTER WILL NOT CLEAR, ATTEMPTED TO CLEAR STATIC INV AND FAULT CLEARED AFTER ACCOMPLISHING FIM 24-31 TASK 801. RAN BOTH ENGINES AND RE-ACCOMPLISHED BITE WITH NO FAULTS LOGGED. STATIC INV SHOWS GOOD VOLTS AND FREQS NO HISTORY 30 DAYS.