HI.XI.C — Approach and Landing with One Engine Inoperative (OEI) (Simulated) (Multiengine Helicopter Only)
HI.XI.C for the Flight Instructor Rotorcraft ACS: official objective, references, and 17 exact knowledge, risk-management, and skill descriptions.
FAA-S-ACS-29, November 2023. This study page does not replace the current FAA publication or an examiner's plan of action.
Official task context
| Certificate or rating | Flight Instructor |
|---|---|
| Aircraft category | Rotorcraft |
| Area of operation | Area of Operation XI. Emergency Operations |
| Task | Task C. Approach and Landing with One Engine Inoperative (OEI) (Simulated) (Multiengine Helicopter Only) |
| Task code prefix | HI.XI.C |
| Official references | FAA-H-8083-2, FAA-H-8083-4, FAA-H-8083-9, FAA-H-8083-21, FAA-H-8083-25; POH/RFM |
| FAA document | FAA-S-ACS-29 — Flight Instructor for Rotorcraft Category Helicopter Rating Airman Certification Standards |
| FAA source library | Open the official ACS library |
Official task objective
To determine the applicant understands approach and landing with one engine inoperative (OEI) (simulated), can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.
What the ACS code means
- HI identifies the ACS standard family used for this Flight Instructor Rotorcraft document.
- XI identifies Emergency Operations, the Area of Operation.
- C identifies Approach and Landing with One Engine Inoperative (OEI) (Simulated) (Multiengine Helicopter Only), the Task within that Area.
- K, R, and S identify knowledge, risk-management, and skill elements. The number selects the item; a trailing lowercase letter identifies a listed sub-element.
Knowledge elements
| ACS code | Official description | How a mock oral can probe it |
|---|---|---|
| HI.XI.C.K1 | Elements of approach and landing with one engine inoperative. | Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant. |
| HI.XI.C.K2 | Effects of atmospheric conditions on emergency approach and landing. | Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant. |
| HI.XI.C.K3 | Stabilized approach. | Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant. |
| HI.XI.C.K4 | Approach and landing profiles and aircraft configuration. | Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant. |
| HI.XI.C.K5 | Common errors related to this Task. | Explain the element, apply it to a scenario, and connect the answer to current references or aircraft information when relevant. |
Risk management elements
| ACS code | Official description | How a mock oral can probe it |
|---|---|---|
| HI.XI.C.R1 | Consideration of altitude, wind, terrain, obstructions, and available landing area. | Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision. |
| HI.XI.C.R2 | Planning and following a flightpath to the selected landing area. | Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision. |
| HI.XI.C.R3 | Collision hazards. | Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision. |
| HI.XI.C.R4 | Distractions, task prioritization, loss of situational awareness, or disorientation. | Work through a scenario by identifying the hazard, evaluating the risk, and explaining a practical mitigation or decision. |
Skills elements
| ACS code | Official description | How a mock oral can probe it |
|---|---|---|
| HI.XI.C.S1 | Maintain the operating powerplant within OEI limits. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.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. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S3 | Make radio calls as appropriate. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S4 | Plan and follow a flightpath to the selected landing area considering altitude, wind, terrain, and obstructions. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S5 | Complete the appropriate checklist(s). | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S6 | Maintain directional control and appropriate crosswind correction throughout the approach and landing. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S7 | Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
| HI.XI.C.S8 | Analyze and correct common errors related to this Task. | Describe the procedure, interpretation, or decision process that can be discussed during an oral. Physical aircraft performance remains part of the practical test. |
Difficulty data
Difficulty calibration is ongoing for this Task. A difficulty estimate is published only with a sufficiently large, privacy-preserving first directly recorded assessment sample. Any observed difficulty comes from Checkride AI mock-oral practice assessments and is a practice-data proxy, not an FAA practical-test pass or fail rate.
Difficulty calibration remains ongoing until an item clears the private reporting threshold. Percentages, when available, describe the share who needed review on their first directly recorded assessment. Underlying sample sizes are never published, and historical final states are not backfilled into this measure.
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.
How to use this in a mock oral
A mock examiner can ask you to explain the published elements, apply them to the configured aircraft and airport scenario, identify risks, and defend a decision. The prompts are practice scenarios; they are not claimed to be actual FAA examiner scripts or a prediction of the questions you will receive.
Related ACS tasks
- All Flight Instructor Rotorcraft ACS tasks
65 task-level resources from FAA-S-ACS-29.
- HI.XI.B — Powerplant Failure at Altitude in a Single-Engine Helicopter
Area of Operation XI. Emergency Operations
- HI.XI.D — Flight Solely by Reference to Instruments
Area of Operation XI. Emergency Operations
- HI.XI.A — Powerplant Failure in a Hover in a Single-Engine Helicopter
Area of Operation XI. Emergency Operations
- HI.XI.E — Recovery from Unusual Flight Attitudes
Area of Operation XI. Emergency Operations