As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
R/H ELEVATOR #3 INBOARD PCU WAS FOUND TO LEAKING AND FAILED THE BACKLASH CHECK, AT AN AVERAGE OF 0.075, .MAXIMUM ALLOWABLE IS 0.070. (C-CHECK RO 9/30/2021) REMOVED AND REPLACED RH #3 PCU IAW CRJ700 AMM 27-33-01-000/400-801-A01 AND USING TASK CARD 27-320-1003 OPS TEST GOOD LEAK TEST GOOD