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AIM 

3/21/24 

[References are to page numbers] 

Gate Holding, 4

3

21 

Glideslope, Visual Indicators, 2

1

Global Navigation Satellite System (GNSS), GNSS, 

5

1

14 

Global Positioning System, 1

1

22 

GPS. 

See

 Global Positioning System 

Graphical Forecasts for Aviation (GFA), 7

1

Ground Based Augmentation System (GBAS) Landing 

System (GLS), 1

1

39 

Ground Station, Call Signs, 4

2

Ground Vehicle Operations, 4

1

Gulf of Mexico Grid System, 10

1

Half

Way Signs, 7

6

Hand Signals, 4

3

30 

Hazard 

Antenna Tower, 7

6

Bird, 7

5

Flight 

Obstructions to Flight, 7

6

Potential, 7

6

Reporting Radio/Radar Altimeter Anomalies, 

7

6

VFR in Congested Areas, 7

6

Ground Icing Conditions, 7

6

15 

Mountain Flying, 7

6

Overhead Wires, 7

6

Thermal Plumes, 7

6

16 

Unmanned Balloons, 7

6

Volcanic Ash, 7

6

HDTA. 

See

 High Density Traffic Airports 

Helicopter 

IFR Operations, 10

1

Landing Area Markings, 2

3

24 

VFR Operations at Controlled Airports, 4

3

21 

Special Operations, 10

2

Wake Turbulence, 7

4

Helicopter Operations, Departure Procedures, 10

1

High Density Traffic Airports, 4

1

22 

Hold, For Release, 5

2

Holding, 5

3

20 

Holding Position Markings, 2

3

1, 2

3

14 

for Instrument Landing Systems, 2

3

14 

for Intersecting Taxiways , 2

3

14 

Holding Position Signs, Surface Painted, 2

3

15 

Hypoxia, 8

1

Icing Terms, 7

1

47 

IFR, 4

4

Operations, To High Altitude Destinations, 5

1

16 

Procedures, Use When Operating VFR, 5

1

IFR 

Approaches, 4

1

Military Training Routes, 3

5

Separation Standards, 4

4

ILS. 

See

 Instrument Landing System 

In

Runway Lighting, 2

1

Taxiway Centerline Lead

off Lights, 2

1

Taxiway Centerline Lead

On Lights, 2

1

Touchdown Zone Lighting, 2

1

Incident, Aircraft, Reporting, 7

7

Inertial Navigation System, 1

1

21 

Inertial Reference Unit (IRU), 1

1

21 

Initial Contact, 4

2

INS. 

See

 Internal Navigation System 

Instrument Departure Procedures (DP), 5

2

Instrument Landing System, 1

1

11 

Category, 1

1

16 

Compass Locator, 1

1

15 

Course, Distortion, 1

1

17 

Distance Measuring Equipment, 1

1

14 

Frequency, 1

1

15 

Glide Path, 1

1

13 

Glide Slope, 1

1

13 

Glideslope, Distortion, 1

1

17 

Holding Position Markings, 2

3

14 

Inoperative Components, 1

1

16 

Localizer, 1

1

11 

Marker Beacon, 1

1

14 

Minimums, 1

1

16 

Instrument Meteorological Conditions (IMC), 5

2

Instrument Procedures, RNP AR (Authorization 

Required) , 5

4

52 

Integrated Terminal Weather System, 4

3

12 

Intercept, 6

2

I

Index