Aviation Report faults Indonesian airline's safety measures in crash Updated : November 28, 2018 03:52 PM IST The pilots simply may have been overwhelmed, said one of the crash investigators, Ony Suryo Wibowo. The lack of the aircraft's cockpit voice recorder, which is still missing, is a dire obstacle to resolving that mystery, the investigators said. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.