As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
IAW CMM 78-31-24 FIG 3 ITEM 670A. THE 315A2502-101 BOND PANEL, ACOUSTIC, HAS NUMEROUS AREAS OF DELAMINATION THAT MEASURES 75.0" X 57.0". ULTRASONIC INSPECTION IAW NDT MANUAL REVEALS SEVERAL AREAS OF DISBOND COMMON TO THE PERF SKIN. SUSPECT IMPROPER PERF SKIN PREPARATION DURING ORIGINAL BUILD.