The aircraft was cruising at an altitude of 29,100 feet and began a rapid descent after 2:20 pm.

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resume the dive before losing contact. It fell more than 25,000 feet in about two minutes.

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"A tragedy like this is extremely unusual," said Richard Aboulafia, managing director of Aerodynamic Advisory.

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

China's Civil Aviation Administration said it was sending a team to the crash site in the Guangxi region

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

They are also likely to check the aircraft's previous flights, maintenance history, weather data and pilot health.

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

The airline said it was sending workers to the crash site and opened a hotline for family members.

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Boeing is trying to regain its reputation after two Max crashe

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Indonesia Lion Air Flight crashed on October 29 2018 and Ethiopian Airlines Flight 302 went down on March 10, 2019.

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

All 346 people on board both the flights died in these accidents.

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China was the first country to land Max after the second crash

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

Chinese regulators allow Max to resume flying in December

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Monday's crash was a 737NG, or the next generation, the model preceding the 737 MAX.

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

Boeing reported its third annual loss in January, disclosing $5.5 billion in costs associated with manufacturing defect

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines

Which has forced the company to halt deliveries of the company's 787 Dreamliners for most of the last 17 month

Boeingchina plane crashChina Eastern Airlines plane crashesChina Eastern Airlines