Unreliable Speed A320

[Goldenrivett]

Originally Posted by vilas

Yes! There was a fatal accident due to radar altitude.

I bet you’re thinking of Aeroperu Flight 603

”The pilots incorrectly believed that they could figure out the actual aircraft altitude by asking the controller, but neither the pilots nor the controller realized that the altitude information displayed on the controller's screen was sent from the aircraft's Mode C Transponder. As the transponder was receiving the same erroneous altitude information being displayed on the aircraft's altimeter, the altitude on the controller's display was also incorrect.”