B737-700
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Flight Crew Last 90 Days 376
Communication Breakdown; Situational Awareness
Deviation - Track / Heading All Types; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance; Flight Crew Became Reoriented; Flight Crew Returned To Clearance
Human Factors
We were flying the RAZRR 4 Arrival into SJC. While approaching the SHIKK intersection; NorCal [Approach] told us to expect the RNAV 12R. The First Officer went to the Departure/Arrival pages on the FMC and selected the correct approach. I was on the LEGS page to make sure it was loaded properly. The First Officer asked me if what he loaded looked ok. I responded 'No; it is not correct'; as there was a discontinuity after SHIKK. The First Officer looked at the moving map display and saw magenta lines showing what looked like the correct routing. He executed the route even though I said it was incorrect. The autopilot reached SHIKK almost instantaneously and proceeded to fly straight ahead. I told the First Officer to engage Heading Select and start a turn while I put in the intersection TRCOT. The First Officer still did not realize that we had flown through SHIKK; so I started the aircraft in the correct direction and reloaded TRCOT. About that time; ATC asked if we were still on the STAR. I told ATC that we had flown through SHIKK and [we were] correcting. ATC told us to proceed direct GGUGL. The First Officer was too quick to execute the changes even though he was made aware that they were incorrect.
B737-700 Captain reported a track deviation occurred on arrival into SJC when the FO executed an FMS change even after the Captain advised it was not correct.