As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT GROUNDED FOR HEAVY MAINTENANCE. AFT LOWER CARGO STRINGER 38R CORRODED BETWEEN STATION 1395-1417. REMOVED AND REPLACED DAMAGED STRINGER WITH REPAIRED STRINGER AND REPAIR STRINGER SPOILER IN ACCORDANCE WITH SRM 51-40-02 AND 53-00-03.