What was found
RIGHT LOWER WING PLANK ACCESS HOLE CUT-OUT AT PANEL 640BB HAS FRETTING CORROSION AT 2 LOCATIONS AROUND CIRCUMFERENCE. INITIATE AWAC E06/021-457 CURRENT REVISION. ***AIRCRAFT REMOVED FROM SERVICE*** BLENDED FRETTING CORROSION ON INBOARD (P1) & OUTBOARD (P2) FLANGE OF PANEL 640BB ACCESS HOLE AT 2 LOCATIONS, P1) 6.800Ï¿½ X 0.500 X 0.007Ï¿½D REM 0.175Ï¿½. P2) 9.100Ï¿½L X 0.500Ï¿½W X 0.003Ï¿½ D, REMAINING 0.179Ï¿½. BLENDED AREA WITHIN LIMITS, HFEC PERFORMED WITH NO INDICATIONS ROTO PEENED AND PROTECTIVE FINISH RESTORED, REF EO# E06/021/457 REV D DATED12/20/2018 AND REO 601-57-21-030 REV L DATED 2014/02/05.