What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON AFT CABIN FLOOR STRUCTURE FR66 ON DOOR SILL L2 FDW GIRT PLATE ATTACHING POINT. REMOVED AND REPLACED L2 DOOR SILL IAW SRM 51-72-11, 53-41-14-283-002, 53-41-14 FIG 021.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON AFT CABIN FLOOR STRUCTURE FR66 ON DOOR SILL L2 FDW GIRT PLATE ATTACHING POINT. REMOVED AND REPLACED L2 DOOR SILL IAW SRM 51-72-11, 53-41-14-283-002, 53-41-14 FIG 021.