Sydney: Investigators probing the disappearance of Flight MH370 have discovered possible new evidence of tampering with the plane's cockpit equipment which experts believe could be part of an attempt to avoid radar detection, according to a media report.

A report released by Australian air crash investigators shows that the missing Boeing 777 suffered a mysterious power outage during the early stages of its flight, The Telegraph reported. The plane's satellite data unit made an unexpected "log-on" request to a satellite less than 90 minutes into its flight from Kuala Lumpur to Beijing, according to the report.