EMB ERJ 145 ER/LR
Flight Crew Air Transport Pilot (ATP)
Time Pressure; Situational Awareness
Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Published Material / Policy; Deviation / Discrepancy - Procedural Clearance
Flight Crew Became Reoriented
Human Factors
Was on the ZEEKK arrival into IAH. Was told by approach to expect 26R which we were set up for. We were then switched to 26L. I asked the first officer to put 26L into the FMS. We were given a heading & told to join localizer 26L and had descended to 6;000 feet. I was looking at the Surface tablet at the fixes for the transition to 26L and saw that they did not match with where we should be for the altitude. I had seen the first officer input the new runway but it did not in fact get changed to new runway so we were 2;000 feet off. At that point ATC queried us about our altitude and we told him that we were at 6;000 feet. He issued the approach clearance to 26L based on our current altitude of 6;000 feet.Rushed by runway change and did not accomplish proper cross check.
The most important behavior/action the would prevent a similar incident from occurring would be the act of loading the new assigned runway transition off of the RNAV arrival into the FMS upon receiving the new runway assignment. By doing so the proper flight plan will be loaded to the FMS ensuring proper navigation. Additionally a more accurate review of the flight plan as compared to the arrival as depicted on the Jeppesen Approach plate would prevent such an error from occurring.
EMB-145 flight crew reported overshooting a crossing altitude when a late runway change caused confusion and distraction.