Crash investigators released the first picture of the black boxes from Ethiopian Airlines Flight ET302. The photo, of the Boeing 737 Max 8 airliner's mangled flight data recorder, was published by the French government on March 14, 2019.
Flight ET302's black boxes, a colloquial term used to describe an aircraft's cockpit voice recorder (CVR) and flight data recorder (FDR), were recovered on March 11, 2019.
The recorders could provide investigators with key clues that may reveal the cause of the crash and ultimately solve the mystery of what's wrong with the Boeing 737 Max.
With US National Transportation Safety Board assisting in the investigation of the Renton, Washington-built plane, it was thought the black boxes would be sent to the US.
Instead, Ethiopian authorities handed over the recorders to the BEA, France's well-respected aviation investigation agency.
According to the National Transportation Safety Board, modern aircraft FDRs are required by law to records at least eight key parameters including time, altitude, airspeed, and the plane's attitude. However, more advanced recorders can monitors more than 1,000 parameters.
Older units used magnetic tape to record data, however, modern FDRs use digital technology that can record as much as 25 hours.
The cockpit voice recorder does just that. It records what's going on in the cockpit including radio transmissions, background noise, alarms, pilot's voices, and engine noises for as long as two hours.
Both recorders are stored in reinforced shells that are designed to survive 30 minutes in 2000-degree Fahrenheit heat and be submerged in 20,000 feet of water.
On March 10, 2019, Ethiopian Airlines Flight ET302 crashed shortly after taking off from Addis Ababa Bole International Airport. The incident, which killed all 157 passengers and crew on board, marked the second nearly-brand new Boeing 737 Max 8 airliner to crash in four months. Lion Air Flight JT610 crashed after taking off from Jakarta, Indonesia on Oct. 28, 2019.
Regulatory agencies and airlines in the more than 50 countries around the world including the US, have grounded the airliners. The Boeing 737 Max entered service in 2017. There are currently 371 of the jets in operation.
Featured image: Twitter/BEA
This article originally appeared on Business Insider. Follow @BusinessInsider on Twitter.
- Ethiopian crash: flight attendants ask FAA to investigate 737 Max 8 ... ›
- Countries that have grounded Boeing 737 Max 8 after Ethiopian crash ›
- Ethiopian Airlines flight to Nairobi crashes leaving 157 people dead ... ›
- A major flight attendant's union is calling on US regulators to ... ›
- Ethiopian Airlines copilot of Flight 302 had just 200 flight hours ... ›