As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
LH ELEVATOR FAILS BACKLASH CHECK FOR HYDRAULIC SYSTEM 3 PER CRJ900 AMM CH. 27-31-00-720-804. MAXIMUM ALLOWABLE BACKLASH IS 0.070", MEASURED VALUE WAS .090". SPHERICAL BALL P3A3211, AND BUSHING B0309008-08-055 AT LH ELEVATOR, PCU #3 WORN BEYOND LIMITS.