As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED IN HMV. UPPER FUSELAGE CARGO CABIN FLOORBEAM LOWER CHORD WITH CORROSION AT BS727C BETWEEN RBL 25 AND RBL 44. REPAIRED FUSELAGE FLOORBEAM AT BS 727C BETWEEN RBL 27 TO RBL 43.5 DUE TO CORROSION IAW EO 3557 REV IR DATED DEC 08-16 DOCUMENTED ON FAA FORM 8110-3 APPROVED BY DER.