What was found
RT MANUAL REVERSION CYLINDER HOUSING BOLTS BROKE AND THE HOUSING BODY CAME APART CAUSING BOTH HYDRAULIC SYSTEMS TO LOSE QUANTITY. THIS RESULTED IN LOSS OF STEERING AND BRAKING DURING TAXI TO GATE AFTER LANDING. AIRCRAFT WAS MET ON THE TAXIWAY AND TOWED TO THE GATE BY MAINTENANCE. REMOVED RT REVERSION CYL 453597. INSTALLED MANUAL REVERSION ACTUATOR PER MM 27-33-09-420-801 TO STEP G 223122. OPS CK LEAK FUNCTIONAL RTS PER MMR. INSP C/W QC50.