Workers unload the fuselage of AirAsia QZ8501, which crashed into the Java Sea last year. Antara Photo Agency / Reuters Indonesian investigators have determined what brought down the AirAsia passenger plane that crashed into the Java Sea nearly nearly a year ago, killing all 162 people on board. Indonesia AirAsia Flight 8501 crashed as a result of technical failures and the crew’s response to them, according to a report published Tuesday by Indonesia’s National Transportation Safety Committee.