The plane crashed into an impoverished village near an upscale neighbourhood in the garrison city of Rawalpindi, which is home to the army's headquarters.
Muilenburg said Boeing followed the same design and certification process it has always used and denied that the MAX was rushed to market. He said he would not resign, and left a press conference as reporters peppered him with questions.
The crash occurred while the plane belonging to Summit Air was trying to take off from Lukla for Kathmandu.
Fileva, 55, was aboard a single-engine, six-seat Epic LT aircraft that crashed and burned in a field as it approached the small airport at Egelsbach, a town in southwestern Germany, at about 3:30 pm (1330 GMT), the airline said in an email.
The Ethiopian Airlines 737 MAX 8 bound for Nairobi crashed minutes after take-off on Sunday, leaving 157 people dead.
The plane was en route from the southern city of San Jose del Guaviare to central Villavicencio as the Special Administrative Unit of Civil Aeronautics said, there were no survivors.
Indonesia has deployed "pinger locators" to try to locate the plane's blackboxes, and yesterday the team had heard a ping sound in a location at 35 metres depth. Meanwhile, Lion Air's technical director and several technicians have been fired.
The 2-month-old Boeing jet crashed into the Java Sea early Monday, just minutes after taking off from Jakarta, killing all 189 people on board.
JU-Air's JU-52 HB-HOT aircraft crashed in the Swiss Alps, killing all 20 people on board, police said.
Snow and poor weather conditions had prevented rescuers from reaching the crash site and recovering the wreckage and bodies of the 65 people who died aboard the Aseman Airlines flight.
The US Marine Corps C-130, a refueling plane, crashed on the Sunflower-Leflore county line, US media reports.
As the search for the missing Myanmar plane continues into its third day, the tally of bodies recovered has risen to 31. The Chinese-made military transport plane lost contact 29 minutes after takeoff on Wednesday.
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