As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
ORD - FLT 4098 - PITCH TRIM EICAS WARNING CAME ON. PITCH TRIM 12 INOPERATIVE BOTH MAIN AND BACKUP TRIM INOPERATIVE. REGAINED FULL CONTROL OF PITCH TRIM AFTER COMPLETING CHECK LIST. COMPLIED WITH ETN EM-27-028 R1 AND REPLACED THE HSCU PER THE ETN. (M)