What was found
LEFT WING AFT SPAR - AFT LOWER WING PLANK, DIRECTLY BELOW LEFT REAR LOWER SPLICE JOINT @ BL 45, SHOWS EVIDENCE OF CHAFFING AND IMPACT DAMAGE AS MARKED (C-CHECK) RO 2/25/2021 REMOVED CHAFING ON LEFT WING AFT SPAR -AFT LOWER WING PLANK, DIRECTLY BELOW LEFT REAR LOWER SPLICE JOINT @ BL 45 REO 601R-57-21-880 REV-D, DATED 2017-03-06. FOUND WITH IN LIMITS AND COMPLIED WITH ALL STEPS OF REO 601R-57-21-880 REV-D, DATED 2017-03-06. NO LEAKS NOTED. COMPLIED WITH TASK CARD 51-900-1003-SKY.