when an unused exit door on the 737 Max 9 jet, made by Boeing, suddenly and unexpectedly blew off about 16,000 feet ... change in pressure in the plane's cabin made some passengers' ears bleed.

The Alaska Airlines plane ... the door plug to the Boeing 737 Max 9 aircraft when it took off from Portland, Oregon, on Jan. 5. The panel blew off at 16,000 feet, which caused the cabin to ...