What was found
RIGHT UPPER FUSELAGE SKIN CRACKED, JUST AFT OF FRAME 75 & ABOVE STRINGER 2R, CRACK IS APPROXIMATELY 1/2" LONG. EASI 8071 USED, FREQ.=400 KHZ, V-GAIN=77.0, H-GAIN=64.0 LPF=100, 100-500 KHZ PROBE. RIGHT UPPER FUSELAGE SKIN CRACK JUST AFT OF FRAME 75 & ABOVE STRINGER 2R HAS BEEN ADDRESSED WITH ETD2015-145-014350. SEE ASSOCIATED NRTC E460799 FOR REPAIR INFORMATION.