Boeing 737-800 is a twin-engine turbofan short-range narrow-range passenger aircraft designed and produced by Boeing, belonging to the Boeing 737NG series, which is the fuselage length of the Boeing 737-700 aircraft, which is used to replace the Boeing 737-400 and fill the gap left by the retirement of the MD-80 and MD-90. The cockpit of the Boeing 737-800 features a new large display on the instrument panel, and winglets can be optionally retrofitted with winglets. [14]On September 5, 1994, the Boeing 737-800 program was officially launched and made its first flight on July 31, 1997. On March 13, 1998, the FAA type certificate was obtained, on April 9, the European Joint Aviation Agency type certificate was obtained, and the first 737-800 was delivered to the customer on April 22.On March 21, 2022, a Boeing 737 passenger plane of China Eastern Airlines lost contact over Wuzhou while carrying out the Kunming-Guangzhou flight mission. The crash of the aircraft has been confirmed. There were 132 people on board, including 123 passengers and 9 crew members [7]. After the accident, China Eastern Airlines has controlled all the aircraft on all B737-800 flights operated by the airline on the ground, and will no longer carry out flights after the air flight lands. [17] (Main article: 3 · 21 China Eastern Airlines Passenger Plane Accident)On April 17, 2022, China Eastern Airlines resumed commercial operations of the Boeing 737-800. The first flight to resume flight was MU5843, which took off from Kunming Changshui International Airport at around 10 am on the 17th and landed at Chengdu Shuangliu International Airport one hour later. [20]In March 2024, according to the website of the Civil Aviation Administration of China, the Civil Aviation Administration of China issued a notice on the progress of the investigation of the flight accident of the "3·21" China Eastern Airlines MU5735 aircraft. [34]On April 10, 2024, Jenni·fer Homendy, chairman of the United States National Tra