What was found
MAIN CABIN BELLY SKIN HAS CORROSION BETWEEN STR 21LH & 21RH BETWEEN FRAME 38 & 39- REMOVED CORROSION FROM BELLY OF FUSELAGE INTERNAL SKIN BETWEEN FR38-39, STR21L-21R, FABRICATED DOUBLER & BEGAN INSTALLATION. COMPLETED REPAIR ON MAIN BELLY SKIN AT FR 38-39 BETWEEN STR 21L & 21R, REMAINING THICKNESS 0.056".