# IL.II.L — Night Operations — Flight Instructor Powered Lift ACS

> IL.II.L from FAA-S-ACS-27, including the official objective, references, notes, and 18 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/powered-lift/flight-instructor/il-ii-l](https://www.check-ride.ai/acs/powered-lift/flight-instructor/il-ii-l)

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

## Official Task context

- FAA document: Flight Instructor for Powered-Lift Category Airman Certification Standards
- Identifier: FAA-S-ACS-27
- Published source date: November 2023
- Aircraft category: Powered Lift
- Certificate or rating: Flight Instructor
- Area of Operation: Area of Operation II. Technical Subject Areas
- Task: Task L. Night Operations
- Task code prefix: IL.II.L
- Official references: FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-25; Flight Manual
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant understands night operations, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

## Knowledge elements

- **IL.II.L.K1** — Physiological aspects of vision related to night flying.
- **IL.II.L.K2** — Lighting systems identifying airports/heliports/helipads/landing areas, runways, taxiways and obstructions, as well as pilot controlled lighting.
- **IL.II.L.K3** — Required aircraft equipment and lighting for night operations.
- **IL.II.L.K4** — Personal equipment essential for night flight.
- **IL.II.L.K5** — Night orientation, navigation, chart reading techniques and methods for maintaining night vision effectiveness.
- **IL.II.L.K6** — Use of instruments to verify the aircraft attitude at night.
- **IL.II.L.K7** — Interpretation of traffic position and direction based solely on position lights.
- **IL.II.L.K8** — Visual illusions at night.
- **IL.II.L.K9** — Night taxi operations.
- **IL.II.L.K10** — Appropriate use of automation, if applicable.

## Risk management elements

- **IL.II.L.R1** — Inoperative equipment.
- **IL.II.L.R2** — Weather considerations specific to night operations.
- **IL.II.L.R3** — Collision hazards.
- **IL.II.L.R4** — Distractions, task prioritization, loss of situational awareness, or disorientation.
- **IL.II.L.R5** — Effect of visual illusions and night adaptation during all phases of night flying.
- **IL.II.L.R6** — Runway incursion.
- **IL.II.L.R7** — Night currency versus proficiency.

## Skills elements

- **IL.II.L.S1** — Teach at least one of the elements listed in K1 through K10.

## 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.

## 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.