As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
PFC LANE FAULT 27-14012. BOEING AHM PROGRAM HAS DETECTED REPEAT FAULT MSG 27-14012 PFC R LANE 1 FAULT. REPLACE THE PFC-R (483-9216) PER MM, CONFIRM PFC SOFTWARE IS CORRECT FOR ALL 3 PFC'S. ACP PFC LANE RESET TEST TWICE TO UNLATCH REMAINING FAULTS. IF PFC-R LANE FAULT CONTINUES FOR FURTHER T-S. CONFIRM ALL PARTS AND S-W WITH THE ONLINE IPC. REPLACED PFC-R, TESTS GOOD.