What was found
*ON R/H WING, AT AFT SPAR, AT APPROXIMATELY WS343R, AT O/B HINGE ON THE AILERON, I/B AND O/B HINGE BOLT STOPS HAVE CORROSION ON HARDWARE, 4 PLACES. (MARKED). (C CHECK RO 5/23/22) INSTALLED AND SAFETIED NEW HARDWARE ON R/H WING AT APPROXIMATELY WS343R FOR I/B AND O/B AILERON HINGE BOLT STOPS IN REF TO CRJ900 AMM 20-21-00-910-801 (CONFIG A01). TORQUE WRENCH TUC5656 DUE: 30-JUN-22.