What was found
STRGR 21L HAS MULTIPLE SPOTS OF CORROSION FROM FS349.00 TO FS394.00 (C-CHECK RO 7/10/2021) UPON FURTHER EXAMINATION FOUND STRINGER 21L STARTS FROM FS 333.00 TO FS 371.00. REMOVED STRINGER 21L IAW CRJ SRM 51-42-06-001-001-A01 AND 51-42-21-001-001-A01. INSTALLED NEW STINGER 21L IAW REO 670-53-21-2015 REV--, DATED 2021-04-27. COMPLETED TASK CARD 51-900-1002-SKY AND ATTACHED COMPLETED FORM 337. NO WEIGHT CHANGE.