As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING C-CHECK MAINTENANCE FOUND THE LT OMEGA BEAM HAS CORROSION IB SIDE AT FRAME 23. MAINTENANCE REPAIRED CORROSION ON LT OMEGA BEAM IB SIDE AT FRAME 23 IAW 145 SRM 53-22-10 AND EC 5320-01140. AIRCRAFT WAS APPROVED TO RETURN FOR SERVICE.