# HI.II.B — Visual Scanning and Collision Avoidance — Flight Instructor Rotorcraft ACS

> HI.II.B from FAA-S-ACS-29, including the official objective, references, notes, and 17 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/rotorcraft/flight-instructor/hi-ii-b](https://www.check-ride.ai/acs/rotorcraft/flight-instructor/hi-ii-b)

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

## Official Task context

- FAA document: Flight Instructor for Rotorcraft Category Helicopter Rating Airman Certification Standards
- Identifier: FAA-S-ACS-29
- Published source date: November 2023
- Aircraft category: Rotorcraft
- Certificate or rating: Flight Instructor
- Area of Operation: Area of Operation II. Technical Subject Areas
- Task: Task B. Visual Scanning and Collision Avoidance
- Task code prefix: HI.II.B
- Official references: AC 90-48; AIM; FAA-H-8083-2, FAA-H-8083-4, FAA-H-8083-9, FAA-H-8083-21, FAA-H-8083-25
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant understands visual scanning and collision avoidance, can apply that knowledge, manage associated risks, demonstrate pilot-in-command skills, and provide effective instruction.

## Knowledge elements

- **HI.II.B.K1** — Environmental conditions that degrade vision.
- **HI.II.B.K2** — Vestibular and visual illusions.
- **HI.II.B.K3** — “See and Avoid” responsibilities.
- **HI.II.B.K4** — Visual scanning procedure and the importance of peripheral vision.
- **HI.II.B.K5** — Aircraft blind spots and clearing procedures.
- **HI.II.B.K6** — Visual cues of an impending mid-air collision.
- **HI.II.B.K7** — Situations that create the greatest collision risk.
- **HI.II.B.K8** — Division of attention inside and outside the aircraft.

## Risk management elements

- **HI.II.B.R1** — Distractions to visual scanning.
- **HI.II.B.R2** — Relaxed intermediate focal distance.
- **HI.II.B.R3** — High volume operational environments.
- **HI.II.B.R4** — Collision reaction time.
- **HI.II.B.R5** — Use of a safety pilot.

## Skills elements

- **HI.II.B.S1** — Effectively scan using short regularly spaced eye movements.
- **HI.II.B.S2** — Scan around physical obstructions.
- **HI.II.B.S3** — Use appropriate visual scanning techniques.
- **HI.II.B.S4** — Use electronic traffic alert systems, if available.

## 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.