What was found
LH INBD FLAP VANE IS CHAFFED ON L/E AT APPROX WS 55.0 (C-CHECK) RO 3/25/2020 REMOVED CHAFFE DAMAGE ONE L/H, I/B FLAP VANE L/E AT APPROX W/S 55.0. PER CRJ-200 SRM 51-12-00. ORIGINAL MATERIAL THICKNESS IS .050". REMAINING THICKNESS IS .023". MATERIAL LOSS IS .037". AREA FOUND TO BE OUT OF LIMITS PER BA REO. REMOVED AND REPLACED L/E SKIN PER CRJ-200 SRM. TOOLING USED: DEPTH DIAL GAGE AV 5185, CAL DUE DATE:11/21-20.