What was found
DURING ULTRASONIC INSPECTION FOR VERTICAL CRACKS BEHIND SERVICE REPAIR SR10550013, PER DRAWING NUMBER SN10550000 ON LEFT HAND SIDE OF THE LOWER VERTICAL STABILIZER FORWARD FLANGE OF UPPER REAR SPAR CAP, STATION Y=2164, CRACK INDICATION FOUND ON THIRD FASTENERS FROM BELOW TOWARDS SECOND FASTENER. DUPLICATED SDR RAISED. PLEASE REFER TO SDR NR 20-2195 FOR THE DETAILS.