What was found
MAIN AVIONICS BAY STR 21L CORRODED BETWEEN FS280.00 AND FS295.00 (C-CHECK RO 2/16/2022) REMOVED DAMAGE AND EVALUATED REPAIR. REPAIR FOUND TO BE OUT OF LIMITS. REMOVED AND REPLACED DAMAGED STRINGER 21L FROM FS280 TO FS333 REF. CRJ-900 SRM, 51-42-21-001-001-A01, REF. CRJ 900 SRM 51-42-06-001-001-A01 AND DWG SH670-31630 REV K. PRESSURE CHECK GOOD. COMPLIED WITH SKYWEST TASK CARD 51-900-1002-SKY / SEE CONTINUATION CARD FOR DETAILS OF WORK PERFORMED.