# AA.I.B — Performance and Limitations — Airline Transport Pilot Airplane ACS

> AA.I.B from FAA-S-ACS-11A, including the official objective, references, notes, and 35 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: Airline Transport Pilot and Type Rating for Airplane Category Airman Certification Standards
- Identifier: FAA-S-ACS-11A
- Published source date: November 2023
- Aircraft category: Airplane
- Certificate or rating: Airline Transport Pilot
- Area of Operation: Area of Operation I. Preflight Preparation
- Task: Task B. Performance and Limitations
- Task code prefix: AA.I.B
- Official references: 14 CFR parts 1, 91; AC 20-117, AC 61-107, AC 61-138, AC 91-74, AC 91-79, AC 120-27, AC 120-58, AC 120-60, AC 135-17; AIM; Chart Supplements; FAA-H-8083-1, FAA-H-8083-2, FAA-H-8083-3, FAA-H-8083-23, FAA-H-8083-25; POH/AFM; SAFO 19001
- FAA source library: https://www.faa.gov/training_testing/testing/acs

## Official Task objective

To determine that the applicant exhibits satisfactory knowledge, risk management, and skills associated with operating an aircraft safely within its operating envelope.

## Knowledge elements

- **AA.I.B.K1** — Elements related to performance and limitations by explaining the use of charts, tables, and data to determine performance.
- **AA.I.B.K2** — How to determine the following, as applicable to the class sought:
- **AA.I.B.K2a** — a. Accelerate-stop / accelerate-go distance
- **AA.I.B.K2b** — b. Takeoff performance [e.g., balance field length and Velocity, Minimum Control (ground) (VMCG)]
- **AA.I.B.K2c** — c. Climb performance
- **AA.I.B.K2d** — d. Cruise performance (e.g., optimum and maximum operating altitudes)
- **AA.I.B.K2e** — e. Descent performance
- **AA.I.B.K2f** — f. Landing performance
- **AA.I.B.K2g** — g. Performance with an inoperative powerplant for all phases of flight (AMEL, AMES)
- **AA.I.B.K2h** — h. Weight and balance and how to shift weight
- **AA.I.B.K3** — Factors affecting performance, including:
- **AA.I.B.K3a** — a. Atmospheric conditions
- **AA.I.B.K3b** — b. Pilot technique
- **AA.I.B.K3c** — c. Aircraft configuration (e.g., flap setting)
- **AA.I.B.K3d** — d. Airport environment (e.g., runway condition, land and hold short operations (LAHSO))
- **AA.I.B.K3e** — e. Loading (e.g., center of gravity)
- **AA.I.B.K3f** — f. Aircraft weight
- **AA.I.B.K4** — Aerodynamics and how it relates to performance.
- **AA.I.B.K5** — Adverse effects of exceeding an airplane limitation or the aircraft operating envelope.
- **AA.I.B.K6** — Effects of icing on performance.
- **AA.I.B.K7** — Clean wing concept; deicing and anti-icing procedures, including use of appropriate deice fluid, holdover tables, calculating hold-over times, and pre-takeoff contamination checks.
- **AA.I.B.K8** — Air carrier weight and balance systems (e.g., average weight program). Air Transport Pilot (ATP)
(AMEL, AMES).
- **AA.I.B.K9** — Runway assessment and condition reporting and use of the Runway Condition Assessment Matrix
(RCAM). (ATP)(AMEL, AMES).

## Risk management elements

- **AA.I.B.R1** — Use of performance charts, tables, and data.
- **AA.I.B.R2** — Airplane limitations.
- **AA.I.B.R3** — Possible differences between calculated performance and actual performance.
- **AA.I.B.R4** — Airplane icing and its effect on performance and stall warning.
- **AA.I.B.R5** — Runway excursions.

## Skills elements

- **AA.I.B.S1** — Describe the airspeeds used during specific phases of flight.
- **AA.I.B.S2** — Describe the effects of meteorological conditions on performance for all phases of flight and correctly
apply these factors to a specific chart, table, graph, or other performance data.
- **AA.I.B.S3** — Describe the procedures for wing contamination recognition and any deice/anti-ice procedures prior to
takeoff.
- **AA.I.B.S4** — Explain the adverse effects of airframe icing during all phases of flight. Describe any operating
limitations for flight in icing conditions. If equipped, describe the procedures for deicing and anti-icing
system use and their effects on performance.
- **AA.I.B.S5** — Compute weight and balance, including practical techniques to resolve out-of-limits calculations for a
representative scenario, as specified by the evaluator.
- **AA.I.B.S6** — Determine the computed center-of-gravity is within the acceptable limits and the lateral fuel balance is
within limits for takeoff and landing.
- **AA.I.B.S7** — Demonstrate proficient use of appropriate performance charts, tables, graphs, or other data to
determine airplane performance and limitations for all phases of flight.

## 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

- 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.