As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
UPON ACCOMPLISHING GVI IN AFT CARGO FOUND LT TRANSITION TO HAVE CORROSION STA 727D TO 747. GROUNDED - YES. REMVOED CORROSION ON TRANSITION PANEL FOUND TO BE OUT OF LIMITS, REMOVED AND REPLACED IAW B737-9MAX SRM 53-00-53-2R-5 W= 2 O= .040 R= .034 L= 3 D= .006.