What was found
RH ENGINE COUNTERBALANCE SPRING LOWER ATTACH STRUCTURE IN THE PYLON IS CHAFED/GOUGED (C-CHECK RO 7/10/2021) REMOVED RH ENGINE COUNTER BALANCE SPRING LOWER ATTACH BRACKET, REPAIRED BRACKET IAW REO 670-54-51-057 REV --, DATED 2021-04-17, AND REINSTALLED REPAIRED BRACKET IAW CRJ 700 SRM 51-42-21-001-001-A01, COMPLETED FORM M-337 AND MAJOR REPAIR TASK CAARD 51-900-1002-SKY, NO CHANGE TO WEIGHT AND BALANCE.