As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING CHECK-C MAINT FOUND CORROSION ON FORMER AT STA 1287, FROM LONGERON 30 T0 23L, FWD SIDE. FORMER FRAME SEGMENT WAS REMOVED FROM LONGERON 18L AND BETWEEN L25R AND L26R. NEW FRAME WAS INSTALLED PER SRM 53-03, FIG 2A AND PER DRAWING 9957739.