The US Federal Aviation Administration (FAA) grounded some versions of Boeing’s 737 Max 9 jets for immediate inspections after a panel blew out of one of the planes over Oregon. The FAA stated that around 171 aircraft worldwide would be affected and each inspection would take four to eight hours. Alaska and United Airlines fly the largest number of Max 9 planes. All three airlines had grounded their jets for inspection by Sunday, and Boeing has delivered about 218 of the 737 Max planes worldwide. The decision came after an Alaska Airlines flight carrying 171 passengers and six crew members had to make an emergency landing. The National Transportation Safety Board (NTSB) said a sealed-over door panel had opened, leading to a sudden decompression in the cabin. The NTSB stated that it was fortunate that the incident did not result in tragedy but urged the public to find and return the door panel. Other airlines around the world also grounded their Max 9 planes while inspections were carried out. This incident adds to Boeing’s struggles, as its 737 Max planes were previously grounded worldwide following two crashes that resulted in 346 fatalities.