As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HMBV THE LEFT OMEGA BEAM AT FRAME 27 WAS FOUND CORRODED. CUT OUT THE DAMAGED AREA. PREPARED A 1.6" X 12.25" FILLER FROM P/N EPNEM53EP54703 AND A 15.5" X 3.6" DOUBLER FROM P/N EPNEM53EP54701. CLEANED, TREATED AND INSTALLED REPAIR PIECES IAW EMB SRM 53-00-10. AIRCRAFT RETURNED TO SERVICE.