Breeze Airways E-190 Practice Exam

When the primary navigation display fails, you rely on independent backup instruments and the procedures in the QRH. The primary source of navigation data is out, so switch to the standby instruments—the attitude indicator, altimeter, airspeed, and heading indicator—to maintain basic flight attitude, speed, altitude, and heading. Use alternate navigation methods available through those backups, such as dead reckoning, pilotage, and any usable VOR/LOC or other independent nav sources, while cross-checking with the remaining systems. Following the QRH steps ensures you re-establish navigation safely and communicate with ATC as needed. Trying the failed display again isn’t a guaranteed fix and can leave you without reliable navigation, so the backup instruments and methods are the appropriate path.