What is the approval status for One-Engine-Inoperative steep approaches?

The approval status for One-Engine-Inoperative (OEI) steep approaches in the King Air 350 is classified as not approved. This means that the aircraft is not certified to conduct steep approaches when operating with one engine inoperative, primarily due to performance limitations and safety concerns. Conducting steep approaches with an OEI configuration could lead to insufficient maneuverability and performance capabilities, which are critical during landing phases, especially in the event of engine failure.

In contrast, options implying approval or conditional approval do not align with the regulatory restrictions and operational guidelines set for the King Air 350's flight operations. Training purposes may involve practicing techniques for dealing with engine failures but do not equate to an official approval for such steep approaches, particularly in real-world conditions. Therefore, the correct understanding reflects adherence to safety protocols and operational limitations.