What was found
RIGHT LOWER WING PLANK UNDER PANEL 650HB IS CHAFED IN TWO AREAS. INBOARD AREA CHAFED .050 INCH WIDE 6 INCHES LONG APPROX .002 INCH DEEP. OUTBOARD AREA CHAFED .050 INCH WIDE 4 INCHES LONG APPROX .001 INCH DEEP. FORWARD CENTER IS AT STARTING STAGES OF CORROSION .5 INCH LONG .1 INCH WIDE. REPAIRED BY BLENDING OUT DAMAGE, PERFORMING NDT, ROTO-PEENED RE-WORKED AREA IAW BOMBARDIER INC REO 601R-57-21-030 REVD. (M)