Will the cause of this air speed differential ( readout via pilot HUD, against actual physical speed) be defined in this:
http://www.davi.ws/avionics/TheAvionicsHandbook_Cap_11.pdf
Did the pilots know this 777 aircraft speed was well below the requirement for a landing, perhaps I have the facts wrong?!
QUOTE
• A failure which results in some particular component remaining active, but the functionality it provides is in error. An example of this failure would be a Low Range Radio Altimeter whose output is indicating the airplane is at an altitude 500 ft above the ground when the airplane is actually 200 ft above the ground.
Interesting that this was a veteran pilot but was considered to be in-training for the for the 777. This was his first time landing a 777 at SFO. There was an experienced 777 pilot with him.
http://www.chicagotribune.com/news/sns-rt-us-usa-crash-asiana-20130706,0,54068.story
Maybe a confluence of things contributed to the crash.