B757-200
Flight Crew Air Transport Pilot (ATP)
Other / Unknown
Aircraft Equipment Problem Less Severe
General Maintenance Action
Aircraft; Human Factors
After landing and exiting a high speed; noticed that the nose wheel steering was not working with either the tiller bar or rudder pedals. [We] stopped the aircraft on the taxiway that merged into the high speed exit (Taxiway Zulu); notified Ground Control and company and were towed back to the ramp. Maintenance found the bolt holding the summing link had come out; causing the problem.
B757 Captain discovers after landing that the nosewheel steering has failed. The aircraft is towed to the ramp; where maintenance discovers a bolt missing from the steering linkage.