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 HAS CORROSION IN THE HOLE FOR EMERGENCY LIGHT WIRES JUST FORWARD OF FRAME 43-44 CROSS MEMBER. COMPLIED WITH REPAIR AT CROSS MEMBER FRAMES 43 AND 44 IAW EO EM-53MR-1480. THE AIRCRAFT WAS RETURNED TO SERVICE.