As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI IN, APU NOT RUNNING RIGHT ENGINE SHUT DOWN ELECTRIC POWER DID NOT TRANSFER FROM POWERED SIDE TO NON POWERED SIDE REPEAT WRITE UP. UNABLE TO DUPLICATE DEFECT PERFORMED GCU BITE IAW FIM 24 21 00, NO FAULTS. PRECAUTIONARY REPLACED BUS TIE BREAKER NR 2 IAW MM 24 21 41, OPS CHECKED NORMAL. ALL GROUND VERIFICATION CHECKED NORMAL.