What's still not known about AirAsia jet and why it crashed

Airasia Flight 8501 collided with the Java Sea with 162 individuals ready for, into a Dec. 28 flight from Surabaya, Indonesia, to Singapore. Many bodies have been recuperated, and inquiry groups have located what is accepted to be the plane's wreckage, yet numerous inquiries stay unanswered. Here are some of them:

WHAT CAUSED THE PLANE TO GO DOWN? 

The pilot told aviation authority he was approaching debilitating mists and asked to move above them, from 9,750 meters (32,000 feet) to 11,580 meters (38,000 feet). Anyhow with six different planes in the same airspace, consent was denied. At the point when the tower attempted to reach after four minutes, there was no reaction, and the Airbus A320 was gone from the radar. The examination will rely on the revelation of the secret elements and the wreckage itself.

WHERE ARE THE BLACK BOXES?

With high surf keeping the organization of ships that drag "ping" locators, no signs have been discovered from the air ship's exceptionally imperative cockpit voice and flight information recorders. Both will give vital data, including the plane's vertical and flat speeds alongside motor temperature and last discussions between the skipper and co-pilot. The secret elements' ping-emanating guides still have around 20 days prior to their batteries go dead.

WHERE ARE THE BODIES AND DEBRIS? 

A gigantic global pursuit exertion including planes, boats and helicopters proceeds notwithstanding overwhelming precipitation, high waves and solid flows. In this way, just around three dozen bodies have been recouped, some still strapped into their seats. Sonar has distinguished what is accepted to be five substantial parts of the plane on the seabed, yet unpleasant conditions alongside mud and sediment have kept jumpers from getting an agreeable visual on it.

WAS THE PLANE AUTHORIZED TO FLY?

Indonesia has propelled an examination concerning Airasia's working practices in the wake of claiming the minimal effort bearer did not have grants to fly from Surabaya to Singapore on Sundays, the day the plane smashed. The greater part of the transporter's flights on that course have following been wiped out. The Transportation Ministry additionally has suspended authorities who permitted the plane to fly without approval, including the Surabaya air terminal's administrator and authorities in the control tower. Airasia has declined to remark until the assessment is finished.