As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
WHILE ACFT WAS IN FOR HEAVY CHECK, LEVEL 2 CORROSION WAS FOUND ON THE AFT F/A SEAT IN THE STOWED POSITION ON THE INBD LOWER FRAME AND LOWER BUMPER. MX R & R THE AFT F/A SEAT IAW AMM 25-22-00. ACFT IS CURRENTLY STILL OUT OF SERVICE FOR HEAVY CHECK COMPLETION.