Four important bolts were missing from a Boeing 737 Max 9 that lost a passenger door plug during flight, the National Transportation Safety Board concluded in its investigation. An absence of markings ...

Heat. For years it’s been a mainstay in the mechanic’s repertoire for unsticking stuck things. From rusted nuts and bolts to pieces that once slipped smoothly together, there isn’t much a torch can’t ...

A panel came off an Alaska Airlines Boeing 737 Max 9 midair last year in an incident that was nearly disastrous but for the heroics of the crew, according to government investigators. By Karoun ...

Automakers are constantly tweaking even the smallest features, leading to industry innovations from rain-sensing wipers to six-level autonomous driving. Some changes can go unnoticed until you have a ...