[Captain Blood]

Originally Posted by IanMan

There is a common flaw associated with the 737 and that is a rudder reversal defect which leads to a single point of failure. It likely contributed to this crash. More info here:

http://airlinesafety.com/faq/B-737Ru...h0dyFgVqMnj-hc

It may have contributed, but would not be the main contributor.
That wouldn't be responsible for 4 flights suffering from airspeed indicator problems.