What was found
* THE LH OUTBD GROUND SPOILER PCU HAS CORRODED HARDWARE. (C-CHECK RO 3-25-22) REMOVED CORRODED L/H OUTBOARD GROUND SPOILER PCU ATTACHMENT HARDWARE AND REPLACED WITH NEW HARDWARE TO INCLUDE 3 EA NUTS, 1 EA BOLT, 2 EA WASHERS AND COTTER PINS. ONLY REPALCED ONE NUT AT A TIME IAW CRJ200 AMM 27-63-01-400-801 PROCEDURE 2 STEPS 1 E AND F. CALIBRATED TOOLING TORQUE WRENCH TUC4980 CAL DUE DATE 28-FEB-22.