What was found
FRAME FS517 CORRODED BETWEEN STRINGERS 18L AND 19L REMOVED STUB FRAME TO BLEND DAMAGE AREA AT FS517 BETWEEN STR18L TO STR19L, IAW CRJ-700 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01.EVALUATED AND FOUND TO BE OUT OF LIMITS DUE TO THE DAMAGE IS ON TWO ELEMENT AND MORE THAN20% MATERIAL LOSS, IAW CRJ-700 SRM 51-31-06-001-002-A01. LOCATED AND DRILLED NEW SERVICEABLE TOP STUB FRAME, P/N SH670-33177-1, IAW CRJ 700 SRM 51-40-11-001-001-A01. INSTALLED NEW SERVICEABLE TOP STUB FRAME, P/N SH670-33177-1 AT FS517 BETWEEN STR18L TO STR19L, IAW CRJ-700 SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01.