What was found
AFT FUSELAGE EXTERNAL SKIN IS CRACKED, AT STATION 1735 FWD OF LT LOWER STAB FAIRING, SEEN FROM INSIDE. REMOVED SKIN PANELS 148T7321-1 & 148T7320-17. INSTALLED NEW SKIN PIECES. SDR INFO, CRACKED 1.5", PN 148T7321-1, SN N/A, PART NAME SKIN PANEL, FS LOCATION ON ACFT, LT FUSELAGE STATION 1737. ACFT WAS GNDED.