# PL.X.F — Radio Communications, Navigation Systems/Facilities, and Radar Services — Private Pilot Powered Lift ACS

> PL.X.F from FAA-S-ACS-13, including the official objective, references, notes, and 7 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/powered-lift/private-pilot/pl-x-f](https://www.check-ride.ai/acs/powered-lift/private-pilot/pl-x-f)

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

## Official Task context

- FAA document: Private Pilot for Powered-Lift Category Airman Certification Standards
- Identifier: FAA-S-ACS-13
- Published source date: November 2023
- Aircraft category: Powered Lift
- Certificate or rating: Private Pilot
- Area of Operation: Area of Operation X. Basic Instrument Maneuvers
- Task: Task F. Radio Communications, Navigation Systems/Facilities, and Radar Services
- Task code prefix: PL.X.F
- Official references: FAA-H-8083-2, FAA-H-8083-15, FAA-H-8083-25
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine the applicant exhibits satisfactory knowledge, risk management, and skills associated with radio communications, navigation systems/facilities, and radar services available for use during flight solely by reference to instruments.

## Knowledge elements

- **PL.X.F.K1** — Operating communications equipment, including identifying and selecting radio frequencies, requesting and following air traffic control (ATC) instructions.
- **PL.X.F.K2** — Operating navigation equipment, including functions and displays, and following bearings, radials, or courses.
- **PL.X.F.K3** — Air traffic control facilities and services.

## Risk management elements

- **PL.X.F.R1** — When to seek assistance or declare an emergency in a deteriorating situation.
- **PL.X.F.R2** — Using available resources (e.g., automation, ATC, and flight deck planning aids).

## Skills elements

- **PL.X.F.S1** — Maintain aircraft control while selecting proper communications frequencies, identifying the appropriate facility, and managing navigation equipment.
- **PL.X.F.S2** — Comply with ATC instructions.

## 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.