Here is an interesting article most of us will not be up against. More so for me as a helicopter is featured, which rarely happens here.

Dimness by daylight | Flight Safety Australia

The helicopter pilot settles into cruise on an hospital patient transfer about 20 minutes after take-off. Time to do some admin and cruise checks. Plenty of fuel in the tanks, compass within limits.
Bang!
The aircraft yaws, number one engine N1 is decaying and now there are several other caution lights coming on. What’s going on—engine failure?
Bang! Bang!

The aircraft descends and the attitude pitches up and rolls right. ‘Whoop whoop’ screams the low rotor horn.
It’s a double-engine failure, the pilot suddenly realises. But how? That doesn’t normally happen unless you run out of fuel and there is plenty of fuel—the pilot had just checked.