AA.I.G.S1
The Code of Federal Regulations (CFR) (ATP)
What does AA.I.G.S1 mean?
Apply the CFRs to the flight and operation..
- Area of Operation
- I. Preflight Preparation
- Task
- G. The Code of Federal Regulations (CFR) (ATP)
- Element type
- A Skill element — something you must physically demonstrate to your examiner on the practical test (checkride), not the written.
What you need to know
This task checks that you can find and apply the specific regulatory requirements governing your operation—here, the portions of 14 CFR dealing with the operating certificate and crewmember/training requirements referenced by the task. The key skill isn't memorizing every number, it's knowing where to look and how to reason through which subpart applies to a given operational scenario (e.g., who must be qualified, what documentation or authorization is required, and what constitutes noncompliance). Expect questions that describe a flight scenario and ask whether it violates the applicable rule, so focus on understanding the intent and scope of each subpart rather than isolated definitions. Always verify the current text of the specific part and subpart in the FAR/AIM or eCFR, since regulatory language and numbering can be updated.
Why students miss this
Students often blur the lines between Part 91, 121, 135, and 111 requirements, forgetting that Part 111 specifically governs weather briefing services and the training/qualification standards for those providing weather info to certificate holders, not pilot duties themselves. This leads test-takers to misapply general operating rules to a question that's actually asking about who is authorized to provide weather services and under what oversight.
Focus on: Study Part 111 as a distinct regulatory framework for weather service providers rather than trying to fit it into the operational rules you already know for flight crew duties.
🎯 Test yourself on this topic
Question 1 of 2Which 14 CFR Part 121 required document includes descriptions of the required crewmember functions to be performed in the event of an emergency?
Free practice · no account needed
Drill this area until it sticks
AA.I.G.S1 came from a question you missed on the FAA Airline Transport Pilot Multiengine Airplane knowledge test. Take a free, ACS-aligned Regulations quiz — instant scoring, explanations, and the cited FAA reference behind every answer.
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.
Related ACS codes in G. The Code of Federal Regulations (CFR) (ATP)
Other elements the FAA tests under this same Task — review them together.
Common question
Why does an ATP candidate need to know about Part 111 if it doesn't apply to pilot duties?
As an ATP-rated pilot, you need to understand where your weather information is coming from and whether that source meets regulatory standards, since you're ultimately responsible for using appropriate weather data in your preflight planning and go/no-go decisions.
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.I.G.S1. 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.