Originally Posted by
FlyingStone
The required missed approach gradient on the approach chart is to be achieved in OEI (one engine inoperative) condition. The edge case scenario is you shoot the approach with AEO and as soon as you reach minimums, one of the engines fails and you have to be able to safely perform a missed approach.
Can only speak to FAA Part 121 ops. Any climb gradient on a missed approach or departure procedure is for all engines operating. With OEI, the operator is required to have a OEI flight path, which may or may not be the same as the published procedure.