What was found
DURING COMPLIANCE OF CRJ200 JOB CARD 53-160-604, "DETAILED INSPECTION OF THE FS 409.0 +128 FRAME AND CAP AFT ANGLES AT STR 21 LEFT AND RIGHT"; A CRACK WAS FOUND AT THE BOTTOM OF THE RBL 27 VERTICAL POST ON THE OB SIDE. THE CRACK ORIGINATES FROM THE BOTTOM OF THE POST BENEATH THE BOTTOM MOST RIVET AND MOVES UPWARD TO BUT NOT THROUGH THE FIRST RIVET. CRACK REPAIRED IAW REO 601R-53-41-0056 REV. F