As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FOUND SEVERE CORROSION AND CRACKING ON THE AFT SIDE OF FRAME 18, ON THE I/B FRAME FLANGE 8 INCHES ABOVE FLOOR LEVEL AND 4 INCHES TO 8 INCHES BELOW FLOOR LEVEL. MAINTENANCE C/W PARTIAL FRAME REPLACEMENT OF FRAME 18 LT IAW RIL HC537H9453 & BAE FAX REF BARA/AVR/5277/01.