As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING TAXI, ELEVATOR POSITION INDICATOR (EPI) FAILED DURING FLIGHT CONTROL CHECK. TRANSFERRED TO DMI NR 19171 AS PER MEL 27-9 CAT "C". CLEANED AND SECURED ELEVATOR EPI INDICATOR IN ACCORDANCE WITH M/M 31-10-30. OPERATIONAL CHECK NORMAL IN ACCORDANCE WITH M/M 27-30-0. THIS CLEARS DMI 19171.