# AI.XI.A — Straight-and-Level Flight — Flight Instructor Airplane ACS

> AI.XI.A from FAA-S-ACS-25, including the official objective, references, notes, and 17 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/airplane/flight-instructor/ai-xi-a](https://www.check-ride.ai/acs/airplane/flight-instructor/ai-xi-a)

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

## Official Task context

- FAA document: Flight Instructor for Airplane Category Airman Certification Standards
- Identifier: FAA-S-ACS-25
- Published source date: November 2023
- Aircraft category: Airplane
- Certificate or rating: Flight Instructor
- Area of Operation: Area of Operation XI. Basic Instrument Maneuvers
- Task: Task A. Straight-and-Level Flight
- Task code prefix: AI.XI.A
- Official references: FAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-16, FAA-H-8083-25; POH/AFM
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant understands attitude instrument flying during straight-and-level flight, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction, solely by reference to instruments.

## Knowledge elements

- **AI.XI.A.K1** — Flight instruments as they relate to:
- **AI.XI.A.K1a** — a. Instrument limitations and potential errors
- **AI.XI.A.K1b** — b. Indication of the aircraft attitude
- **AI.XI.A.K1c** — c. Function and operation
- **AI.XI.A.K1d** — d. Proper instrument cross-check techniques
- **AI.XI.A.K2** — Common errors related to this Task.

## Risk management elements

- **AI.XI.A.R1** — Instrument flying hazards, including failure to maintain visual flight rules (VFR), spatial disorientation, loss of control, fatigue, stress, and emergency off airport landings.
- **AI.XI.A.R2** — When to seek assistance or declare an emergency in a deteriorating situation.
- **AI.XI.A.R3** — Collision hazards.
- **AI.XI.A.R4** — Distractions, task prioritization, loss of situational awareness, or disorientation.
- **AI.XI.A.R5** — Fixation and omission.
- **AI.XI.A.R6** — Instrument Interpretation.
- **AI.XI.A.R7** — Control application solely by reference to instruments.
- **AI.XI.A.R8** — Trimming the aircraft.

## Skills elements

- **AI.XI.A.S1** — Maintain straight-and-level flight using proper instrument cross-check and interpretation, and coordinated control application.
- **AI.XI.A.S2** — Maintain altitude ±100 feet, heading ±10°, and airspeed ±10 knots.
- **AI.XI.A.S3** — Analyze and correct common errors related to this Task.

## 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.