A new RNAV approach at Anaktuvuk Pass, Alaska, is rendered impractical by a high Minimum Descent Altitude (MDA) of 4000 feet above the airport, primarily due to terrain constraints for the missed ...
Solar storm or poor signal quality can force a downgrade past minimums.
RNAV (GPS) Y and Z approaches for the same runway are designed for different aircraft types and capabilities, with Y typically for single-engine pistons and Z often for jets. The Z approach generally ...
Pilots must navigate rules for using GPS info as a substitute means of navigation to stay legal.