As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R/H ELEVATOR OTBD PCU FAILED BACKLASH FUNCTIONAL CHECK (C-CHECK RO 12/19/2021) REMOVED AND REPLACED RH OUTBOARD ELEVATOR PCU TOGGLE LINK TO ELEVATOR BOLT AND BUSHING REF EMB175 AMM 27-32-01. RH ELEVATOR OUTBOARD PCU BACKLASH FUNCTIONAL CHECKPASSED AT THIS TIME. REF ATTACHED TASK CARD 27-32-01-006-RH.