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AIM

3/29/18

Explanation of Changes

E of Chg−1

Aeronautical Information Manual

Explanation of Changes

Effective: March 29, 2018

a. 1−1−13. User Reports Requested on NAVAID

or Global Navigation Satellite System (GNSS)

Performance or Interference

To better capture failures during outages, this change

creates a stronger emphasis on Global Positioning

System (GPS) international interference reporting

and collection of data.

b. 1−2−4. Pilots and Air Traffic Controllers

Recognizing Interference or Spoofing

This change provides information regarding Mini-

mum Operational Network (MON) airports that are

being added to the Chart Supplement U.S. in case of

GPS interruptions.

c. 3−1−1. General

3−4−1. General

3−4−3. Restricted Areas

3−4−5. Military Operations Areas 

3−4−9. Obtaining Special Use Airspace

Status

3−5−2. Military Training Routes

These changes clarify that only permanent restricted

areas and permanent military operations areas are

charted.

d. 4−3−2. Airports With an Operating Control

Tower

This change removes the word “leg” from “departure

leg.” Changing the term “departure leg” to

“departure” will correctly correspond to FIG 4−3−1,

Components of a Traffic Pattern, and align with

current language in the Aeronautical Information

Publication.

e. 4−3−3. Traffic Patterns

This change restructures the paragraph and adds

clarifying information needed to help pilots better

understand their responsibilities regarding flying in

and around airport traffic patterns. It also adds a

reference to Advisory Circular (AC) 90−66,

Recommended Standards Traffic Patterns for Aero-

nautical Operations at Airports without Operating

Control Towers, for flight at airports without

operating control towers.

f. 4−7−1. Introduction and Background

4−7−2. Lateral Separation Minima applied

4−7−3. Operation on Routes on the

Periphery of the Gulf of Mexico CTAs

4−7−4. Provisions for Non−RNP 10 Aircraft

(Not Authorized RNP 10 or RNP 4)

4−7−5. Operator Action

4−7−6. RNP 10 or RNP 4 Authorization:

Policy and Procedures for Aircraft and

Operators

4−7−7. Flight Planning Requirements

4−7−8. Pilot and Dispatcher Procedures:

Basic and In−flight Contingency Procedures
This change significantly reorganizes and

streamlines the content within this section. Instead of

eight sub−sections, the new section will contain six.

The key concepts from the old content have been

retained throughout the new version. However,

excess wording has been eliminated. No new policy

information has been added.

g. 5−1−4. Flight Plan − VFR Flights

5−1−6. Flight Plan − Defense (DVFR) Flights

The terms “coastal ADIZ,” “domestic ADIZ,” and

“DEWIZ” are obsolete and are no longer a part of the

Air Defense Identification Zone (ADIZ) definition,

as published in 14 Code of Federal Regulations

Part 99. Therefore, those terms are being removed.

h. 5−1−8. Flight Plan (FAA Form 7233−1) −

Domestic IFR Flights

5−1−9. International Flight Plan (FAA

Form 7233−4) IFR Flights
This change updates references to various advisory

circulars.

i. 5−1−9. International Flight Plan (FAA

Form 7233−4) IFR Flights
This change removes the “Reserved for RCP”

description for the P−Code and includes the P−Code

equipment definitions.