What was found
FUSELAGE CROSSBEAM(PN:CC670-33292-135) AT F.S. 280.00 L/H AND R/H SIDES ARE CRACKED. CORRECTIVE ACTION: REMOVE AND REPLACED F.S. 280.00 L/H AND R/H SIDES IAW CRJ 700 SRM51-21-11, 51-25-00, 51-25-16, 51-42-21, 51-42-06, 53-11-41, 25-42-18, 51-42-13, 51-40-11, 53-11-41, CRJ 700 NDT MANUAL PART 1 51-20-006, CRJ 700 AMM 20-70-00.