As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
INITIAL INSPECTION: CORROSION ON INTERCOSTAL BTW FS=319.00 TO FS=310.00 AND STR 20R AT INTERNAL STRUCTURE OF MAIN AVIONICS COMPARTMENT (SM) (E/E). SUMMARY OF NRC 00253: DUE TO EXCESSIVE CORROSION LEVEL-2 IN INTERCOSTAL BTW FS=319 TO FS=310 AND STRINGER 20RH, WILL BE REPLACE PER SRM 53-21-23-101-002-A02 PARAGPAH-4 FIGURE 53-21-23-991-823 THEREFORE NEW INTERCOSTAL BTW FS=319 TO FS=310 AND STRINGER 20R, WAS DRILLED PE