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AIM

2/28/19

Explanation of Changes

E of Chg

−2

i. 4

−5−7. Automatic Dependent Surveillance−

Broadcast (ADS

−B) Services

This change emphasizes that an aircraft’s ADS

−B

Flight Identification (FLT ID) must match the aircraft
identification annotated in the filed flight plan to
receive air traffic services. It also adds the term and
acronym, Call Sign Mis

−Match (CSMM), for

consistency with FAA Order JO 7110.65.

j. 5

−1−8. Flight Plan (FAA Form 7233−1) −

Domestic IFR Flights

This change updates pilot guidance to incorporate air
traffic control (ATC) procedures for GNSS

−equipped

aircraft operating on area navigation (RNAV) air
traffic service (ATS) routes and on random
point

−to−point and random impromptu routes in

airspace in which ATC procedures are applied,
excluding oceanic airspace. This change also
incorporates the use of the term GNSS in place of
RNAV for space

−based positioning and navigation

systems.

k. 5

−1−8. Flight Plan (FAA Form 7233−1) −

Domestic IFR Flights

This change adds guidance that allows the navigation
provided by GPS as an acceptable alternative to Great
Circle Routes. This change is for aircraft equipped
with latitude/longitude coordinate navigation capa-
bility flying random routes at and above FL 390
within the conterminous United States. 

l. 5

−1−8. Flight Plan (FAA Form 7233−1) −

Domestic IFR Flights

5

−1−9. International Flight Plan (FAA Form

7233

−4) − IFR Flights (For Domestic or Interna-

tional Flights)

5

−1−11. Flights Outside the U.S. And U.S.

Territories

Appendix 3. Abbreviations/Acronyms

This change deletes obsolete references to Interna-

tional Flight Information Manual (IFIM) in para-
graphs 5

−1−8 and 5−1−9 as well as Appendix 3. This

change retitles paragraph 5

−1−11. The change to

subparagraph 5

−1−11d removes the obsolete refer-

ence to IFIM and replaces it with a reference to the
appropriate AIP (of the foreign location). The change
to subparagraph 5

−1−11e removes obsolete refer-

ences to foreign NOTAM information and adds a
reference to the FAA’s Prohibitions, Restrictions, and
Notices website. The change to subparagraph
5

−1−11f clarifies customs notification to foreign

locations and also removes all outdated and obsolete
customs information. This change also adds
subparagraph 5

−1−11h which provides a pointer

reference for entry requirements into U.S. territorial
airspace.

m. 5

−3−4. Airways and Route Systems

This change deletes the NOTE regarding Advisory
Circular 90

−100A which is no longer useful.

n. 5

−4−5. Instrument Approach Procedure

(IAP) Charts

This change more succinctly describes when a
vertical descent angle (VDA) is published. It also
addresses VDA charting differences that may occur
between the FAA and commercial chart and database
purveyors.

o. 7

−1−2. FAA Weather Services

7

−1−5. Preflight Briefing

7

−1−8. Telephone Information Briefing

Service (TIBS)

This change documents that Telephone Information
Briefing Services (TIBS) will only be provided by
Alaska Flight Service Stations.

p. Entire publication.

Editorial/format changes were made where neces-
sary. Revision bars were not used when changes are
insignificant in nature.