As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DURING HEAVY MAINTENANCE: CORROSION ON FLOOR SUPPORT BTW FR18 AND FR 19 Y= 640R AT W1. EVAL; REF TOMX WO 1974 N/R 00184 SUMMARY OF NRC S/N 00184: FLOOR SUPPORT BTW FR18 AND FR 19 Y= 640R AT W1 WAS REPLACED PER EMB 190 SRM 51-41-02. WORK ACCOMPLISHED BY 201534008 INSP BY 200801852.