It was not long ago that a 747 crossing the pole had all four engines die at the same moment. After losing tens of thousands of feet of altitude, they got the engines started again.
Rolls Royce (or was it GE?) figured out what exact combination of intake speed, pressure, humidity, temperature, and history caused the failure, and prevented it on subsequent flights. It had been considered (!), but they thought it would never be encountered on any real flight. The engines restarted because, at lower altitude, conditions were different enough.
The pilots found the event distressing. It is possible most passengers didn't notice.
Rolls Royce (or was it GE?) figured out what exact combination of intake speed, pressure, humidity, temperature, and history caused the failure, and prevented it on subsequent flights. It had been considered (!), but they thought it would never be encountered on any real flight. The engines restarted because, at lower altitude, conditions were different enough.
The pilots found the event distressing. It is possible most passengers didn't notice.