As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
FS310 FRAME IS CORRODED BETWEEN STGR25L AND STGR26R. WHILE WORKING FS310 FRAME IS CORRODED BETWEEN STGR25L AND STGR26R.FOUNDFRAME SEGMENT BETWEEN 26L-27 TO BE OUT OF LIMITS. REPAIRED (INSTALLED FALSE FLANGE AT FRAME 310 BETWEEN STRG 27 AND 26L IAW CRJ 700 SRM 53-00-06-201-004-A01 STEP 6 C (7).