Originally Posted by
Lookleft
What is harder to fathom is the lack of airspeed not being noticed on the PFD's. The pilots should be expecting to see that during the take-off. Tracking technology on the pitot covers is not a bad idea but should there be some sort of alarm similar to the take-off warning config if the IAS is not increasing?
In this case, red 'SPD' flags were annunciated on both PFDs as the aircraft accelerated through 50 knots groundspeed. The Captain noticed the flags and muttered 'speed, speed', but did not communicate the problem to the FO. The Captain was clearly confused by what was happening, but instead of making a decision to reject the take-off, he just let it continue and then called '100 knots' based on the groundspeed readout. The flight crew actions during the take-off, especially those of the Captain, make for 'interesting' reading.