Jet engines seem built to last forever, but their real lifespan depends on a lot more than just age, including how they're flown, maintained, and monitored.

The pause before takeoff is not hesitation, but a critical moment of engine verification and thrust stabilization.

Flights at Newark Airport were temporarily suspended after engine failure forced a JetBlue flight to return to the airport and evacuate passengers via slides on.

It doesn't seem to matter how powerful jet engine technology becomes; the cost of air travel doesn't seem to be coming down any time soon. But that doesn't mean de facto flagship airlines like Delta ...