As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY CHECK FOUND THAT THE LEFT OMEGA BEAM AT FRAME 49-50 HAS CORROSION AT THE CROSS MEMBER. THE AIRCRAFT WAS REMOVED FROM SERVICE. COMPLETED REPAIR TO LEFT OMEGA BEAM CROSS MEMBER AT FRAMES 49-50 IAW EO EM-53MR-1460. THE AIRCRAFT WAS RETURNED TO SERVICE.