# CH.VIII.C — Approach and Landing with One Engine Inoperative (OEI) (Simulated) (Multiengine Helicopter Only) — Commercial Pilot Rotorcraft ACS

> CH.VIII.C from FAA-S-ACS-16, including the official objective, references, notes, and 15 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/rotorcraft/commercial-pilot/ch-viii-c](https://www.check-ride.ai/acs/rotorcraft/commercial-pilot/ch-viii-c)

Site reference: [https://www.check-ride.ai/llms.txt](https://www.check-ride.ai/llms.txt)

## Official Task context

- FAA document: Commercial Pilot for Rotorcraft Category Helicopter Rating Airman Certification Standards
- Identifier: FAA-S-ACS-16
- Published source date: November 2023
- Aircraft category: Rotorcraft
- Certificate or rating: Commercial Pilot
- Area of Operation: Area of Operation VIII. Emergency Operations
- Task: Task C. Approach and Landing with One Engine Inoperative (OEI) (Simulated) (Multiengine Helicopter Only)
- Task code prefix: CH.VIII.C
- Official references: FAA-H-8083-2, FAA-H-8083-21, FAA-H-8083-25; POH/RFM
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with approach and landing with one engine inoperative (simulated).

## Knowledge elements

- **CH.VIII.C.K1** — Elements of approach and landing with one engine inoperative.
- **CH.VIII.C.K2** — Effects of atmospheric conditions on emergency approach and landing.
- **CH.VIII.C.K3** — Stabilized approach.
- **CH.VIII.C.K4** — Approach and landing profiles and aircraft configuration.

## Risk management elements

- **CH.VIII.C.R1** — Consideration of altitude, wind, terrain, obstructions, and available landing area.
- **CH.VIII.C.R2** — Planning and following a flightpath to the selected landing area.
- **CH.VIII.C.R3** — Collision hazards.
- **CH.VIII.C.R4** — Distractions, task prioritization, loss of situational awareness, or disorientation.

## Skills elements

- **CH.VIII.C.S1** — Maintain the operating powerplant within OEI limits.
- **CH.VIII.C.S2** — Maintain, prior to beginning the final approach segment, the recommended flight profile with altitude ±100 feet, airspeed, ±10 knots, heading ±5°, and maintains track.
- **CH.VIII.C.S3** — Make radio calls as appropriate.
- **CH.VIII.C.S4** — Plan and follow a flightpath to the selected landing area considering altitude, wind, terrain, and obstructions.
- **CH.VIII.C.S5** — Complete the appropriate checklist(s).
- **CH.VIII.C.S6** — Maintain directional control and appropriate crosswind correction throughout the approach and landing.
- **CH.VIII.C.S7** — Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.

## Difficulty methodology

Difficulty calibration is ongoing for this Task. Observed difficulty is a privacy-thresholded check-ride.ai mock-oral practice proxy, not an FAA practical-test pass or fail rate. Underlying sample sizes and the private reporting threshold are not published.

## Official Task notes

- Note: See Appendix 2: Safety of Flight and Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.

## Use in practice

A mock examiner can ask a pilot to explain the published elements, apply them to the configured aircraft and airport context, identify risks, and defend a decision. Practice prompts are not represented as actual FAA examiner scripts or predictions of the questions a candidate will receive.