What was found
R/H WING O/B FLAP HINGE BOX AT WS 264.00 HAS 2 AREAS OF CHAFING DAMAGE. DAMAGE AREA 1 IS TO THE I/B FLAP HINE ARM FITTING DWG 601R10910 WITH DAMAGE DIMENSIONS OF .20"L X .15"W X .032"D. DAMAGE 2 IS TO THE AFT SIDE PLATE DWG 601R10180 WITH DAMAGE DIMENSIONS OF .20"L X .10" X .35"D. AIRCRAFT REMOVED FROM SERVICE BLENDED DAMAGED AREA #1 TO A SMOOTH CONTOUR ON R/H FLAP HINGE ARM FITTING AT WS 264.00 BLEND DIMENSIONS ARE .20"L X .15"W X .028"D BLENDED DAMAGE AREA #2 ON R/H FLAP HINGE BOX AT WS 264.00 I/B AFT PLATE STRUCTURAL PLATE LOWER EDGE WITH BLEND DIMENSIONS OF .20"L X .10"W X .020"D. HFEC PERFORMED NO DEFECTS NOTED. REF BOMBARDIER REO 601R-57-21-3193.