That is a very SERIOUS problem!
Especially when you only have two engines.
In many ways the old four engine 707 was a safer plane.... but those four engines did use a lot of jet fuel.
I’m not sure if the 707 could remain in slow-speed flight with just one engine running but at least the single engine would give you a longer time to chose where you were going to attempt an emergency landing.
If it ain’t Boeing then I ain’t going.
Not really. If one looks at the in flight failures of these new turbines as compared to the old 707 turbines, statistically you are safer with a two engined 757, 767 or the 787 dream liners.
It all has to due with hours to failure. Four turbines that fail often are much less safer than 2 turbines that fail at a much lower rate.
I have crossed the ocean many many times in the old 707s and miss them. The last time was 1981 on Pan Am from DC to London. The new aircraft with only two engines are safer.
Always fly as far into the crash as possible.