MU3001A
to give the benefit of the doubt to two dead pilots, to understand the world fo computers, I have to ask: could they have seen the correct IAS displayed, yet have it not be correct?
COULD the INCREASED VREF speed switch somehow be crosswired and just display 20 more knots than they really had?
IF there were a camera recording what a human eye would have seen would have cleared this up right away.
Awhile ago, an air traffic controller I know said that at KSFO/Bay Approach (awhile ago boys and girls) said that what was displayed on their scopes was not always recorded by their gadgets...and they wanted a camera over their shoulder to prove what they saw.
And they were seeing things that the computer didn't record...the modern age!