After China, Singapore's aviation regulator has also ordered the temporary suspension on operation of all Boeing 737 max aircraft. The move comes in light of 2 fatal accidents involving Boeing 737 max aircraft in less than 5 months. India’s aviation regulator DGCA has also issued additional safety instructions for flying b737 max planes. 157 people were killed in an Ethiopian airlines crash on Sunday that involved a Boeing 737 max 8 jet.