What was found
LEFT AND RIGHT INBOARD FLAP VANES HAD WEAR DAMAGE ON THE LEADING EDGE SKINS AT THREE LOCATIONS PER SIDE. THE DAMAGE LOCATIONS OCCURRED AT WS = 56.3, WS = 89.0 AND WS = 139.0.THE AFFECTED COMPONENTS ARE AS FOLLOWS: LEFT INBOARD FLAP: P/N 601R14002-1, SERIAL NUMBER SB/RJ/729, WS = 56.3: 1.0 INCH X 0.5 INCH WIDE X 0.019 INCH MAX DEPTH, WS = 89.0: 1.0 INCH X 0.3 INCH WIDE X 0.015 INCH MAX DEPTH, WS = 139.0: 1.0 INCH X 0.3 INCH WIDE X 0.014 INCH MAX DEPTH. RIGHT INBOARD FLAP: P/N 601R14002-2, SERIAL NUMBER SB/RJ/723, WS = 56.3: 1 INCH X 0.6 INCH WIDE X 0.015 INCH MAX DEPTH WS = 89.0: 1.0 INCH X 0.4 INCH WIDE X 0.012 INCH MAX DEPTH WS = 139.0: 1.0 INCH X 0.3 INCH WIDE X 0.009 INCH MAX DEPTH. REPAIRED IAW STS ENGINEERING EA 5-2010-201.