KUALA LUMPUR, Malaysia — Air traffic controllers did not realize that Malaysia Airlines Flight 370 was missing until 17 minutes after it disappeared from civilian radar, according to the preliminary report on the plane's disappearance released Thursday by Malaysia's government.
In addition to the five-page report, dated April 9, the government also released other information from the investigation into the flight, including audio recordings of conversations between the cockpit and air traffic control, the plane's cargo manifest and its seating plan.
Malaysia also released a map showing the plane's deducted flight path as well as a document detailing actions taken by authorities in the hours after the Boeing 777 disappeared from radar. The reports were mostly information that has been released since the jet disappeared while flying near the border separating Malaysian and Vietnamese airspace.
The plane went off Malaysian radar at 1:21 a.m. March 8, but Vietnamese air traffic controllers only queried about it at 1:38 a.m., according to the report, which was sent last month to the International Civil Aviation Organization.
The report also said Malaysian authorities did not launch an official search and rescue operation until four hours later, at 5:30 a.m., after efforts to locate the plane failed.