Originally Posted by
DingerX
1. Outside of ETOPS certification, why on a twin with one good engine and near several suitable airports, would it make more sense to reduce a malfunctioning engine to idle than to shut it down?
Engine failure lesson 1: An engine at idle still produces some electricy, hydraulics, bleed air and less drag. It is always better to have it at idle than to shut it down. You only shut it down if you really, really have to.