# PI.X.A — Checking Instruments and Equipment — Flight Instructor – Instrument Powered Lift ACS

> PI.X.A from FAA-S-ACS-28, including the official objective, references, notes, and 5 exact knowledge, risk-management, and skill descriptions.

Canonical HTML: [https://www.check-ride.ai/acs/powered-lift/flight-instructor-instrument/pi-x-a](https://www.check-ride.ai/acs/powered-lift/flight-instructor-instrument/pi-x-a)

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

## Official Task context

- FAA document: Flight Instructor – Instrument Rating Powered-Lift Airman Certification Standards
- Identifier: FAA-S-ACS-28
- Published source date: November 2023
- Aircraft category: Powered Lift
- Certificate or rating: Flight Instructor – Instrument
- Area of Operation: Area of Operation X. Postflight Procedures
- Task: Task A. Checking Instruments and Equipment
- Task code prefix: PI.X.A
- Official references: 14 CFR part 91; 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 procedures for checking flight instruments and equipment during postflight, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

## Knowledge elements

- **PI.X.A.K1** — Procedures for documenting in-flight/postflight discrepancies.
- **PI.X.A.K2** — Common errors related to this Task.

## Risk management elements

- **PI.X.A.R1** — Performance and documentation of postflight inspection and aircraft discrepancies.

## Skills elements

- **PI.X.A.S1** — Conduct a postflight inspection and document discrepancies and servicing requirements, if any.
- **PI.X.A.S2** — 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.