Aeronautical Information Manual (AIM)
The Aeronautical Information Manual (AIM) is a free publication from the Federal Aviation Administration providing fundamental flight information and ATC procedures for the National Airspace System. It covers air navigation, airspace, ATC procedures, emergency procedures, safety of flight, medical facts, and includes the Pilot/Controller Glossary. Updated multiple times per year, it is essential reading for all pilots. Download it at no cost from FAA.gov.
Why This Document Matters
The AIM is the pilot's operating manual for the National Airspace System. While the FARs tell you what you must do, the AIM tells you how the system works. It explains how ATC operates, how to communicate on the radio, how to read weather products, and how to navigate the airspace system safely. The AIM is updated multiple times per year, making it the most current FAA publication. Knowledge test questions frequently reference AIM procedures, especially radio communications, airspace, and emergency procedures. If you fly IFR, the AIM is indispensable for understanding approach procedures, holding patterns, and lost-communications rules.
Study This Document in One Loop
What is the Study Loop?A 30-60 minute scenario-first session that replaces hours of passive reading.
Scenario
Decision
Targeted Learning
Open only these sections of the AIM:
- Chapter 4 — Air Traffic Control (initial call format, tower phraseology, non-towered vs towered)
- Chapter 6 — Emergency Procedures (two-way radio failure, light gun signals)
- Chapter 2 — Airport Lighting (runway/taxiway lights, VASI/PAPI, approach lighting)
- Chapter 7 — Safety of Flight (night operations, wake turbulence, VFR minimums)
Debrief
Compare your Decision to what the handbook says:
- ?Initial call format: who you're calling, who you are, where you are, what you want. Did you have all four?
- ?Tower gave you "standby" — are you cleared to enter the airspace, or holding outside? What does the AIM actually say?
- ?Light gun signals on final: steady green, flashing green, steady red, flashing red. Can you recite what each means without looking?
- ?Night taxi after landing: which lights identify the runway you just landed on vs. the taxiway you need?
Reinforcement
Turn your biggest miss into fast-recall rules:
- Initial radio call = "Facility, callsign, position, altitude, request." Four parts, in order.
- "Standby" is not a clearance. Remain outside Class D until you have an acknowledgment with your callsign.
- Light gun on final: steady green = cleared to land, flashing red = unsafe, do not land.
What Order to Read the AIM
Don't read by chapter number. Work the four phases. Start with whichever you're weakest in.
Survival Thinking
“What can hurt me?”
- •Chapter 6 — Emergency Procedures (lost comm, transponder codes 7500/7600/7700, distress calls)
- •Chapter 7 — Safety of Flight (wake turbulence, wind shear, VFR weather minimums)
- •Chapter 8 — Medical Facts for Pilots (hypoxia, spatial disorientation, night vision)
Interpretation
“What am I looking at?”
- •Chapter 2 — Aeronautical Lighting (VASI/PAPI, runway markings, approach lights)
- •Chapter 3 — Airspace (Class A-G, special use, TFRs)
- •Chapter 9 — Aeronautical Charts and Publications (Chart Supplement, NOTAM system)
Prediction
“What will happen?”
- •Chapter 1 — Air Navigation (VOR, GPS/WAAS, radar services)
- •Chapter 5 — Air Traffic Procedures (IFR planning, departure, enroute, arrival)
Checkride Mode
“Can I explain it under pressure?”
- •Chapter 4 — Know the initial radio call format cold. Tower, approach, CTAF.
- •Chapter 3 — VFR weather minimums by airspace class (memorize the table)
- •Chapter 6 — Emergency transponder codes and two-way radio failure (AVE-F rule for IFR)
Chapter-by-Chapter Guide
What each section covers and the key topics to study
1Chapter 1: Air Navigation
Navigation aids, radar services, and the National Airspace System infrastructure.
Chapter 1: Air Navigation
Navigation aids, radar services, and the National Airspace System infrastructure.
Key Topics
2Chapter 2: Aeronautical Lighting and Other Airport Visual Aids
Airport lighting systems, visual approach aids, and marking systems.
Chapter 2: Aeronautical Lighting and Other Airport Visual Aids
Airport lighting systems, visual approach aids, and marking systems.
Key Topics
3Chapter 3: Airspace
Controlled and uncontrolled airspace, special use airspace, and operating requirements.
Chapter 3: Airspace
Controlled and uncontrolled airspace, special use airspace, and operating requirements.
Key Topics
4Chapter 4: Air Traffic Control
ATC services, radio communications, airport operations, and radar services.
Chapter 4: Air Traffic Control
ATC services, radio communications, airport operations, and radar services.
Key Topics
5Chapter 5: Air Traffic Procedures
Preflight, departure, enroute, and arrival IFR procedures.
Chapter 5: Air Traffic Procedures
Preflight, departure, enroute, and arrival IFR procedures.
Key Topics
6Chapter 6: Emergency Procedures
General emergency procedures, two-way radio failure, and distress/urgency procedures.
Chapter 6: Emergency Procedures
General emergency procedures, two-way radio failure, and distress/urgency procedures.
Key Topics
7Chapter 7: Safety of Flight
Meteorology, altimeter settings, wake turbulence, bird hazards, and flight safety.
Chapter 7: Safety of Flight
Meteorology, altimeter settings, wake turbulence, bird hazards, and flight safety.
Key Topics
8Chapter 8: Medical Facts for Pilots
Fitness for flight, hypoxia, spatial disorientation, and vision.
Chapter 8: Medical Facts for Pilots
Fitness for flight, hypoxia, spatial disorientation, and vision.
Key Topics
9Chapter 9: Aeronautical Charts and Related Publications
Chart types, chart supplements, and NOTAMs.
Chapter 9: Aeronautical Charts and Related Publications
Chart types, chart supplements, and NOTAMs.
Key Topics
10Chapter 10: Helicopter Operations
Helicopter-specific procedures and special operations.
Chapter 10: Helicopter Operations
Helicopter-specific procedures and special operations.
Key Topics
Study Tips
- Focus on Chapter 4 (ATC) and Chapter 7 (Safety of Flight) for the Private Pilot knowledge test. These chapters generate the most test questions.
- Memorize the emergency transponder codes: 7500 (hijack), 7600 (lost comm), 7700 (emergency). They appear on every knowledge test.
- For instrument students, Chapter 5 (Air Traffic Procedures) and Chapter 6 (Emergency Procedures including lost-comm rules) are critical. Study AVE-F and the MEA altitude rule.
- Use the AIM as a reference, not something to read cover to cover. Look up specific topics as they come up in your training.
- The AIM is updated multiple times per year. Always download the latest version before your knowledge test.
- Cross-reference AIM procedures with the ACS to understand which AIM topics are testable on your checkride.
Frequently Asked Questions
Is the AIM free?
Yes, the AIM is completely free. It is available as a PDF download and as a searchable HTML version on FAA.gov.
How often is the AIM updated?
The AIM is updated multiple times per year, typically every 6 months. Always check FAA.gov for the most recent version before your knowledge test or checkride.
Is the AIM the same as the FAR/AIM?
No. The "FAR/AIM" is a combined publication sold by private publishers (ASA, Jeppesen) that includes both the Federal Aviation Regulations (14 CFR) and the AIM in one book. The AIM itself is just the procedures manual. The FARs are the actual regulations (law) published separately in the Code of Federal Regulations.
Do I need the AIM for my Private Pilot checkride?
You are not required to bring the AIM to your checkride, but you should be familiar with its contents. DPEs expect you to understand radio communications, airspace procedures, and emergency procedures—all of which come from the AIM.
What is the Pilot/Controller Glossary?
The Pilot/Controller Glossary is an appendix to the AIM that defines terms used in the ATC system. It is the official source for definitions of ATC terminology like "cleared," "hold short," "line up and wait" (replaced "position and hold" in 2010), "unable," and other terms you hear on the radio.
Quick Facts
- Document ID
- AIM
- Last Updated
- August 2025
- Cost
- Free
- Publisher
- FAA
Applies To
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Aeronautical Information Manual (AIM) is an official FAA publication available at FAA.gov
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