What was found
LH WING LOWER WING PLANK CUTOUR FOR FUEL PANEL 540BB HAS CORROSION ON THE IB.OB, AND FWD EDGES IN THE CRITICAL ZONE (C-CHECK RO 4/12/2021) REPAIRED LH WING LOWER WING PLANK CUTOUR FOR FUEL PANEL 540BB HAS CORROSION ON THE IB.OB, AND FWD EDGES IN THE CRITICAL ZONE IAW BOMBARDIER REO 601R-57-21-030 REV L DATED 2014-02-05 AND MHIRJ 601R-57-21-3429 REV -- DATED 2021-02-23 & SKY CARD 51-900-1003-SKY NO WEIGHT CHANGE 337 IS ATTACHED NOTE REF ATTACHED CONTINUATION CARD FOR DETAILS OF WORK PERFORMED SDIR REQUIREMENT FOR REO 601R-57-21-030 IS IN 7941 THRESHOLD CYCLES WITH A REPEAT INSP AT 7941 THRESHOLD CYCLES