NTSB found that four key bolts were missing from the door plug that blew out on a Boeing 737 Max 9 during an Alaska Airlines flight from Portland to Ontario
Photos taken during repair work on the plane in September show no evidence the bolts were replaced after removal, according to preliminary NTSB findings.
The National Transportation Safety Board (NTSB) said Tuesday that four bolts meant to help secure the door plug of a Boeing 737 Max 9 jet were missing before an Alaska Airlines flight experienced a midair blowout last month. NTSB investigators have been looking into what may have led to last’s month incident when a fuselage…