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FAA ACS Code

AA.III.F.K3

F

Certificate: Airline Transport Pilot – AirplaneType: Knowledge

What does AA.III.F.K3 mean?

Wind correction techniques on approach and landing..

Area of Operation
III
Task
F
Element type
A Knowledge element — a fact, concept, or procedure the FAA expects you to know and that the knowledge (written) test draws questions from.

What you need to know

A stabilized approach means holding a consistent, predetermined descent rate, airspeed, and configuration all the way to the flare, which keeps energy (speed plus altitude) properly managed rather than requiring large corrections close to the surface. Wind—especially gusts, crosswinds, and shifting surface winds—changes your groundspeed, drift, and the timing of the flare, so you adjust approach speed, aim point, and control inputs to compensate while still touching down under control. Rough water technique applies to seaplane operations where wave height, swell direction, and glassy or confused water make it hard to judge height or control the touchdown, so pilots use a shallow, power-on, gradually descending approach and let the airplane settle onto the water rather than flaring for a normal landing. Know why this technique is chosen (poor depth perception, wave action, avoiding a hard mistimed touchdown) and how it's flown so you can distinguish it from a normal or glassy-water approach on the test.

Why students miss this

Students often think of a stabilized approach as just hitting a target airspeed and glidepath, missing that it's fundamentally about managing total energy (altitude, airspeed, thrust, and drag together) so that any deviation is caught early and corrected smoothly rather than with a late, large control input. On rough water elements, the common trap is confusing rough water technique with normal water landings, not recognizing that the approach is flown deliberately longer and shallower with a nose-high, power-on attitude specifically to avoid touching down on the back side of a swell or wave crest.

Focus on: Practice explaining the stabilized approach in terms of energy state and correction rather than a single number, and be able to describe why rough water landings use a longer, flatter, power-assisted touchdown technique.

Missed this on your test?

Drill this area until it sticks

AA.III.F.K3 came from a question you missed on the FAA Airline Transport Pilot Multiengine Airplane knowledge test. Drill ACS-aligned practice questions with AI explanations and the cited FAA handbook reference behind every answer — free to start.

Missing it isn't a verdict on you — it's a sign your prep skipped the why behind it. Memorizing answer letters is exactly what leaves gaps like this. Here, every answer explains the reasoning and cites the FAA source it comes from, so the concept holds on test day and at the checkride oral.

Study this concept

Plain-English explanations of the key ideas behind AA.III.F.K3, grounded in the FAA handbooks.

Related ACS codes in F

Other elements the FAA tests under this same Task — review them together.

Common question

Why can't you just fly a rough water landing the same as a normal water landing?

Because unpredictable wave and swell patterns make it hard to judge exact height above the surface, so pilots use a shallower, power-on attitude and let the airplane settle onto the water rather than flaring to a full stall like a normal landing.

What is an FAA ACS code?

The FAA's Airman Certification Standards (ACS) break each certificate into Areas of Operation, Tasks, and specific Knowledge (K), Risk Management (R), and Skill (S) elements. Every knowledge-test question maps to one code like AA.III.F.K3. When you miss a question, your Airman Knowledge Test Report lists its code so you know exactly what to review.

Have a whole list of codes from your report? Paste them all into our free ACS code lookup to see every weak area at once — or browse the aviation glossary for plain-English definitions.