I'm no expert, just an aircraft enthusiast & plane crashes interest me on a technical basis as to why they happen, but with all this automation why is there no audible &/or visual warning of low speed....
apparently this flight was below 137kts for 35 seconds.....
I can only assume the entire crew was either worried about other parameters or enjoying the view! But a warning at 10kts below a normal approach speed (determined by aircraft weight) would have brought them back into focus real quick & with plenty of time & altitude to react!
Was it only when the stick shaker acted they realized they were too slow?
Also this does not seem to be a stable approach....speed was being washed off all the way down, shouldn't it be constant throughout the final stages of landing?
Is it possible the pilot tried to fly the B777 like an A320 & there is a significant difference in flight aerodynamics in the landing configuration? i.e the 777 has more drag?
Thumbs up to the NTSB for getting the facts out very quickly & regularly.
Cheers