As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING B INSPECTION, FOUND THE TAIL CONE INTERNAL LT HORIZONTAL GANG CHANNEL HAS EXFOLIATING CORROSION ABOUT 20" FROM TAIL CONE LENS ASSY. THE ACFT WAS REMOVED FROM SERVICE. INSTALLED TAIL CONE IAW JIC 53-91-24. OPS CHECKED GOOD. ACFT RETURNED TO SERVICE.