What was found
RH AILERON CONTROL SYSTEM INBOARD PCU FAILED BACKLASH FUNCTIONAL TEST. (C-CHECK RO 9/14/21) / REMOVED AND REPLACED RH IB PCU TOGGLE LINK TO AILERON SURFACE BOLT, BUSHING, AND WASHERS, AND RE-CHECKED RH AILERON IB PCU BACKLASH. BACKLASH IS WITHIN SPECS. ASSET 7402, DUE 5-11-22, ASSET 8561, DUE 9-29-21, ASSET 8578, DUE 3-8-22.