What was found
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON CABIN FRAME 15, STRINGER 23L WEB BEAM Y1584. REMOVED CORROSION AND VERIFIED BEYOND LIMITS IAW SRM 53-11-14-283-004. REMOVED AND REPLACED THE WEB IAW SRM 53-11-14, AND SRM 51-42-11.
As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
DURING HEAVY MAINTENANCE, CORROSION WAS DISCOVERED ON CABIN FRAME 15, STRINGER 23L WEB BEAM Y1584. REMOVED CORROSION AND VERIFIED BEYOND LIMITS IAW SRM 53-11-14-283-004. REMOVED AND REPLACED THE WEB IAW SRM 53-11-14, AND SRM 51-42-11.