As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE SKIN AT THE COOLING DUCT CUTOUT, BS 373 LBL 3, FOUND CRACKED AT THE AFT EDGE OF THE CUTOUT. THE CRACK IS APPROX 2 INCH LENGHTH AND IS TYPICAL OF CRACKS DESCRIBED IN BACO S/B 737-53-1117 R1. THE CRACK WILL BE STOP DRILLED AND A PERMANENT REPAIR WILL BE INSTALLED PER BACO.