What was found
WHILE PERFORMING SB 670BA-53-045 RH FS220 FRAME FAILED NDT, MARKED ON PART. (C-CHECK RO 1/22/2022) REMOVED AND REPLACED RH FS 220 FRAME IAW SNIEO KCC670-34403-S85 REV -- DATED 29-DEC-2021 AND CRJ 900 SRMS 51-40-11-001-001-A01, 51-42-06-001-001-A01, 51-42-13-001-001-A01, AND 51-42-21-001-001-A01. COMPLETED AND ATTACHED TASK CARD 51-900-1002-SKY AND M-337. NO WEIGHT CHANGE.