AirAsia QZ8501: Plane took three minutes to fall into sea

In this photograph taken on Jan 10, 2015, wreckage from Flight QZ8501 being lifted into a ship at sea south of Borneo island. - EPA

JAKARTA: The co-pilot of missing Indonesia AirAsia Flight QZ8501 was flying the plane - supervised by the pilot - before it crashed last month, Indonesia's National Transportation Safety Committee (KNKT) said on Thursday, adding that the plane took about three minutes to plunge into the sea. 

All crew on board were properly certified and the plane was in good condition when it departed Surabaya for Singapore on Dec 28 with 162 people on board, KNKT said at a press conference.