Air Asia Indonesia Lost Contact from Surabaya to Singapore

[Ian W]

Originally Posted by formationdriver

Interesting timing: FO's family sues the airline (for dangerous & illegal operations) two days before Airline says CVR proves he was the Pilot Flying at the time of the accident. The airline also says 320's FDR shows no mechanical,electrical or weather-related-related malfunctions before steep climb, subsequent loss of control, and crash. The family's suit is based on "illegal operation" ( flying without a route permit on that day), "overcrowded skies" "excessive ATC workload." Lawyers... !!

France-La famille du copilote d'Air Asia porte plainte | Reuters
AirAsia : le copilote français pilotait l'avion au moment du crash

The family's suit does not appear to have any merit. The area was not overcrowded, it was standard delay in clearing an aircraft for higher and in any case higher would make an aircraft more susceptible to severe turbulence. This was just luck-of-the-draw finding an active possibly 'dry' cell at the wrong moment.
However, not being an engineer, you probably did not note the items missing in that carefully enumerated list which I have bolded: Software, algorithm, system design are not mentioned. It is possible that all the protections worked as precisely as designed but this is a particular rare occurrence of a 'bus zoom climbing, as the WSJ reports, because the systems worked as designed.