B737-800
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Less Severe; Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Clearance
Flight Crew Executed Go Around / Missed Approach
Aircraft
FO (First Officer) flying. On arrival into SJC on the RAZRR4 arrival and cleared for the ILS 30L approach. Around SEKKO received a 'display source 2' message on both PFDs. As the QRH was being run; the message went away. Then approaching KLIDE with the turn started; FO ND (Navigation Display) lost all NAV data; flight director went away and aircraft went into CW (Control Wheel) steering. Hand flew turn towards final but had overshot. Due to location and altitude; was directed to go around. Followed directions. Recovered ND somewhere on new downwind. Cleared for new approach and landed uneventfully.
On descent into SJC received display source 2 message that cleared itself while referencing the QRH procedure. Later while joining final both flight directors failed the FOs ND lost all data and the autopilot downgraded to CWS (Control Wheel Steering). FMS left and right were displayed in the scratch pads. A go around was executed and regained all data on downwind landed normally.
Boeing 737 Crew reported a dual NAV/Display failure while on approach. They executed a missed approach and recovered the failed NAV systems using the QRH while preparing for their second approach.