Light Transport
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 13.5
Training / Qualification; Confusion; Situational Awareness
ATC Issue All Types; Deviation - Altitude Overshoot; Deviation - Altitude Excursion From Assigned Altitude; Deviation / Discrepancy - Procedural Clearance
Air Traffic Control Separated Traffic; Air Traffic Control Issued Advisory / Alert; Air Traffic Control Issued New Clearance
Procedure; Human Factors; Chart Or Publication; Airspace Structure
Aircraft X was on the BRIXX RNAV arrival into SJC. After BRIXX; Aircraft X started to descend out of 12;000 feet for 7;000 feet. 12;000 feet is the bottom altitude on the BRIXX arrival; not 7;000 feet. I continually have aircraft fly this arrival incorrectly. Pilots see 7;000 feet (which is a MEA altitude) and begin their descent. This is a major problem that my facility is aware of and rumored to be fixing. The unsafe part of all of this is that the SFO arrivals are directly below this route at 11;000 feet. What is it going to take to make it more clear to pilots?This seems to happen with general aviation business jet pilots and foreign aircraft pilots. Make it clearer that 12;000 feet is the final altitude on the BRIXX arrival.
TRACON Controller reported an aircraft descended below the charted assigned altitude of an RNAV arrival. The controller stated this is a recurring issue.