During a HOGE single engine maneuver, after moving TRNG to IDLE 1 and the PF failing to reduce collective with NR droop to 320 RPM, the FADEC logic will ensure the idled engine provides power up to the ____.

• A. ACTUAL SELECTED OEI STOP
• B. NOMINAL OEI STOP
• C. MAXIMUM IDLE LIMIT
• D. DESIGNATED OEI STOP

Answer: (A)

In an OEI (one engine) situation, the FADEC clamps the remaining engine’s power to the value that is actually selected for OEI operation. That means the idled engine can provide power only up to the Actual Selected OEI Stop. The system uses this specific limit to ensure you have the necessary thrust to control the helicopter without exceeding what the engine and rotor system can safely handle in single-engine flight.

The other options aren’t the active limit in this scenario: a nominal OEI stop is a standard reference, not the real-time selected limit; the maximum idle limit is a general idle constraint not specific to OEI protection; and the designated OEI stop is not the current selected value.