What was found
CORROSION DETECTED ON HARDWARE, L/H WING SPOILERON, AT "BOTH" OTBD & INBD HINGE ATTACH POINTS. THE "NUTS" ON THE HINGE BOLTS AND THE ANTI-MIGRATION FITTINGS ATTACHING BOLTS (FLAGGED). (C-CHECK) RO 2/25/2021. INSTALLED WITH NEW FROM STOCK (2EA) NUTS AND WASHERS AND (8EA) ANTI-MIGRATION ATTACHMENT BOLTS ON THE LH SPOILERON AT BOTH INBD AND OTBD ATTACH POINTS REF CRJ 200 AMM 27-64-01-400-801 / OP'S TESTED THE FLIGHT SPOILER/SPOILERON, CHECKS GOOD. REF: CRJ-200 AMM 27-64-00-710-801.