What was found
RIGHT UPPER FUSELAGE SKIN CRACKED 2 PLACES, CRACK 1 IS JUST AFT OF FRAME 75, JUST ABOVE STRINGER 2R, CRACK IS APPROX 3/8" IN LENGTH. CRACK 2 IS ON FRAME 75, AT THE FIRST FASTENER BELOW STRINGER 2R, CRACK IS APPROX 1/4". EASI 8071 USED, 100-500 KHZ PROBE, FREQ=400 KHZ, V-GAIN=77.0, H-GAIN=64.0, LPF=100. ACCOMPLISHED REPAIR OF RT UPPER FUSELAGE SKIN 2 PLACES, AT FRAME 75 JUST ABOVE 2R & FRAME 75 BELOW 2R IAW ERS-EM-53MR-1894.