# PI.VIII.B — Precision Approach — Flight Instructor – Instrument Powered Lift ACS

> PI.VIII.B from FAA-S-ACS-28, including the official objective, references, notes, and 30 exact knowledge, risk-management, and skill descriptions.

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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 VIII. Instrument Approach Procedures
- Task: Task B. Precision Approach
- Task code prefix: PI.VIII.B
- Official references: 14 CFR part 91; AC 90-105, AC 90-107; AIM; FAA-H-8083-2, FAA-H-8083-9, FAA-H-8083-15, FAA-H-8083-16, FAA-H-8083-25; Terminal Procedures Publications
- 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 performing precision approach procedures solely by reference to instruments, can apply that knowledge, manage associated risks, demonstrate appropriate skills, and provide effective instruction.

## Knowledge elements

- **PI.VIII.B.K1** — Procedures and limitations associated with a precision approach, including determining required descent rates and adjusting minimums in the case of inoperative equipment.
- **PI.VIII.B.K2** — Navigation system displays, annunciations, and modes of operation.
- **PI.VIII.B.K3** — Ground-based and satellite-based navigation systems (orientation, course determination, equipment, tests and regulations, interference, appropriate use of navigation data, signal integrity).
- **PI.VIII.B.K4** — A stabilized approach, including energy management concepts.
- **PI.VIII.B.K5** — Common errors related to this Task.

## Risk management elements

- **PI.VIII.B.R1** — Deviating from the assigned approach procedure.
- **PI.VIII.B.R2** — Selecting a navigation frequency.
- **PI.VIII.B.R3** — Management of automated navigation and autoflight systems.
- **PI.VIII.B.R4** — Aircraft configuration during an approach and missed approach.
- **PI.VIII.B.R5** — An unstable approach, including excessive descent rates.
- **PI.VIII.B.R6** — Deteriorating weather conditions on approach.
- **PI.VIII.B.R7** — Continuing to descend below the Decision Altitude (DA)/Decision Height (DH) when the required visual references are not visible.

## Skills elements

- **PI.VIII.B.S1** — Accomplish the precision instrument approach(es) selected by the evaluator.
- **PI.VIII.B.S2** — Establish two-way communications with air traffic control (ATC) appropriate for the phase of flight or approach segment, and use proper communication phraseology.
- **PI.VIII.B.S3** — Select, tune, identify, and confirm the operational status of navigation equipment to be used for the approach.
- **PI.VIII.B.S4** — Comply with all clearances issued by ATC or the evaluator.
- **PI.VIII.B.S5** — Recognize if any flight instrumentation is inaccurate or inoperative, and take appropriate action.
- **PI.VIII.B.S6** — Advise ATC or the evaluator if unable to comply with a clearance.
- **PI.VIII.B.S7** — Complete the appropriate checklist(s).
- **PI.VIII.B.S8** — Establish the appropriate aircraft configuration and airspeed considering meteorological and operating conditions.
- **PI.VIII.B.S9** — Maintain altitude ±100 feet, selected heading ±10°, airspeed ±10 knots, no more than ¾ scale CDI deflection, and accurately track radials, courses, or bearings, prior to beginning the final approach segment.
- **PI.VIII.B.S10** — Adjust the published DA/DH and visibility criteria for the aircraft approach category, as appropriate, to account for NOTAMS, inoperative aircraft or navigation equipment, or inoperative visual aids associated with the landing environment.
- **PI.VIII.B.S11** — Establish a predetermined rate of descent at the point where vertical guidance begins, which approximates that required for the aircraft to follow the vertical guidance.
- **PI.VIII.B.S12** — Maintain a stabilized final approach from the final approach fix (FAF) to DA/DH allowing no more than ¾-scale deflection of either the vertical or lateral guidance indications, and maintain the desired airspeed ±10 knots.
- **PI.VIII.B.S13** — Immediately initiate the missed approach procedure when at the DA/DH, and the required visual references for the runway are not unmistakably visible and identifiable.
- **PI.VIII.B.S14** — Transition to a normal landing approach only when the aircraft is in a position from which a descent to a landing on the runway, or to a heliport, can be made at a normal rate of descent using normal maneuvering.
- **PI.VIII.B.S15** — Maintain a stabilized visual flight path from the DA/DH to the runway aiming point or descend visually to a suitable touchdown point not aligned with the instrument runway final course, as directed by the evaluator.
- **PI.VIII.B.S16** — Use a multi-function display (MFD) and other graphical navigation displays, if installed, to monitor position, track wind drift, and to maintain situational awareness.
- **PI.VIII.B.S17** — Use single-pilot resource management (SRM) or crew resource management (CRM), as appropriate.
- **PI.VIII.B.S18** — 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.

## Official Task notes

- Note: See Appendix 3: Aircraft, Equipment, and Operational Requirements & Limitations for information related to this Task.

## 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.