What was found
L/H AILERON UPPER L/E SHROUD HAS AREAS OF CHAFFING WEAR.COMPLETELY ACCROSS THE ENTIRE AILERON. (C-CHECK RO 5/16/2022) REMOVED AND INSTALLED NEW L/H AILERON UPPER L/E SHROUD SKIN AND RESTORED FINISH. REF: CRJ200 SRM 51-42-06, CRJ200 SRM 51-42-13, CRJ200 SRM 51-42-21, CRJ200 SRM 51-21-16 AND DWG CC670-13000 REC-C. COMPLIED WITH 51-900-1003-SKY. SEE CONTINUATION CARD FOR DETAILS. BLENDED AND FOUND TO BE OUT OF LIMITS REF REO 670-57-61-194 REV-C DATE 2019-01-07