What was found
DURING C-20 CHECK A 1 1/2 INCH CRACK WAS FOUND ON FUSELAGE SKIN L-1 DOOR CUTOUT BELOW LOWER SCUFF PLATE, APPROXIMATELY 10 INCH FORWARD OF AFT LOWER CORNER BS 334 - 336, STR 17 LT. MAINTENANCE REMOVED EXISTING REPAIR DOUBLER, STRAP, WEB, AND COVER PLATE AT BS 334 - 336, STR 17 LT TO ACCESS DAMAGED AREA; REMOVED CRACK AND PERFORMED HFEC INSPECTION TO VERIFY CRACK NO LONGER EXISTS; REINSTALLED REPAIR DOUBLER, STRAP, WEB, AND COVER PLATE PER E.O. 53-44-01.