What was found
STRINGER SPLICE AT R/H STR21 AND FS477.00 HAS CORROSION. (C CHECK RO 5/23/22) CORROSION ON STR 21R SPLICE AT FS477.00 IS DEEP PITTING CORROSION ON MULTIPLE SURFACES AND IN A NO DAMAGE ALLOWED AREA AND IS FOUND TO BE OUT OF LIMITS REF. CRJ 900 SRM 53-31-03-101-003-A04 / INSTALLED NEW REPLACEMENT STRINGER REF CRJ-900 SRM 51-42-06-001-001-A01, CRJ-900 SRM, 51-42-21-001-001-A01 AND DWG SH670-30006 REV A / PRESSURE LEAK CHECK OF REPAIR AREA CHECKED GOOD, NO LEAKS NOTED. COMPLIED WTH TASK CARD 51-900-1002-SKY