What was found
L/H OVERWING EMERGENCY - EXIT LOWER LATCH FWD FITTING BOTH AFT I/B AND O/B BOLT AND NUTPLATE CORRODED. LOWER LATCH AFT FITTING I/B BOLT AND NUTPLATE CORRODED ASLO THE AFT FITTING LATCH THROUGH PIN IS SEIZED NO ROTATION. (C-CHECK RO 4/25/2021) REMOVED AND REPLACED CORRODED HARDWARE AND NUTPLATES ASSOCIATED WITH THE L/H OVERWING EMERGENCY EXIT FWD AND AFT LOWER LATCH FITTINGS IAW CRJ 200 SRM 51-42-06-00, SRM 51-42-02-00, SRM 51--23-00-00, CRJ 200 AMM 20-21-00-02, AND CRJ 200 AMM 20-24-00-910-801. CALIBRATED TOOL WVACT 4881 DUE 11/21.