Aviation How to read an aircraft's black box, explained Updated : March 15, 2019 08:27 AM IST They are not actually black but high-visibility orange. Experts disagree how the nickname originated but it has become synonymous with the public's quest for answers when planes crash. The BEA released a photo of the FDR from the Ethiopian jet appearing to show that the chip's crucial housing is intact while the replaceable chassis is crushed. The CVR contains two hours of recordings, more than enough to cover the six-minute Ethiopian flight. 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.