Aircraft manufactured in this day and age can pretty much fly themselves from departure to arrival. The need for human beings on the flight deck is to monitor systems and troubleshoot anomalies. While hand flying skills are important, systems knowledge is imperative. You cannot exercise efficient CRM if you are ignorant to the function and details of all systems design and integration. While I pray for their souls and do not question the crews reactions in a extremely stressful moment, I am troubled that this fault occurred previously and was recognized and dealt with on previous flights. The fact that the problem still existed and the aircraft was cleared to fly lies with Lion Air.
