# IL.V.E — Before Takeoff Check — Flight Instructor Powered Lift ACS

> IL.V.E from FAA-S-ACS-27, including the official objective, references, notes, and 17 exact knowledge, risk-management, and skill descriptions.

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

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 V. Preflight Procedures
- Task: Task E. Before Takeoff Check
- Task code prefix: IL.V.E
- Official references: FAA-H-8083-2, FAA-H-8083-9, 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 before takeoff checks, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

## Knowledge elements

- **IL.V.E.K1** — Purpose of before takeoff checklist items, including:
- **IL.V.E.K1a** — a. Reasons for checking each item
- **IL.V.E.K1b** — b. Detecting malfunctions
- **IL.V.E.K1c** — c. Configuring the aircraft as recommended by the manufacturer

## Risk management elements

- **IL.V.E.R1** — Division of attention while conducting before takeoff checks.
- **IL.V.E.R2** — Unexpected runway changes.
- **IL.V.E.R3** — Unexpected or unclear clearances from ATC.
- **IL.V.E.R4** — Wake turbulence.
- **IL.V.E.R5** — Downwash.
- **IL.V.E.R6** — Potential powerplant failure during takeoff or other malfunction considering operational factors such as aircraft characteristics, runway/takeoff path length, surface conditions, environmental conditions, and obstructions.

## Skills elements

- **IL.V.E.S1** — Review takeoff performance.
- **IL.V.E.S2** — Select the appropriate takeoff profile for aircraft and environmental conditions.
- **IL.V.E.S3** — Complete the appropriate checklist(s).
- **IL.V.E.S4** — Properly position the aircraft considering other aircraft, vessels, and wind.
- **IL.V.E.S5** — Divide attention inside and outside the aircraft.
- **IL.V.E.S6** — Verify that powerplant parameters and aircraft configuration are suitable for the takeoff profile.
- **IL.V.E.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.

## 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.