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4/20/23 

AIM 

Chapter 5.  Air Traffic Procedures 

Section 1.  Preflight 

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1.  Preflight Preparation 

a. 

Prior to every flight, pilots should gather all information vital to the nature of the flight, assess whether the 

flight would be safe, and then file a flight plan. Pilots can receive a regulatory compliant briefing without 

contacting Flight Service. Pilots are encouraged to use automated resources and review Advisory Circular AC 

91

92, Pilot’s Guide to a Preflight Briefing, for more information. Pilots who prefer to contact Flight Service 

are encouraged to conduct a self

brief prior to calling. Conducting a self

brief before contacting Flight Service 

provides familiarity of meteorological and aeronautical conditions applicable to the route of flight and promotes 

a better understanding of weather information. 

Pilots may access Flight Service through 

www.1800wxbrief.com 

or by calling 1

800

WX

BRIEF. Flight planning applications are also available for conducting a self

briefing 

and filing flight plans. 

NOTE

 

Alaska only: Pilots filing flight plans via “fast file” who desire to have their briefing recorded, should include a statement 

at the end of the recording as to the source of their weather briefing. 

b. 

The information required by the FAA to process flight plans is obtained from FAA Form 7233

4, 

International Flight Plan. Only DoD users, and civilians who file stereo route flight plans, may use FAA Form 

7233

1, Flight Plan. 

NOTE

 

FAA and DoD Flight Plan Forms are equivalent. Where the FAA specifies Form 7233

1, Flight Plan and FAA Form 7233

4, 

International Flight Plan, the DoD may substitute their Form DD 175, Military Flight Plan and Form DD

1801, DoD 

International Flight Plan as necessary. NAS automation systems process and convert data in the same manner, although for 

computer acceptance, input fields may be adjusted to follow FAA format. 

c. 

FSSs are required to advise of pertinent NOTAMs if a 

standard

 briefing is requested, but if they are 

overlooked, do not hesitate to remind the specialist that you have not received NOTAM information. 

Additionally, FSS briefers do not provide FDC NOTAM information for special instrument approach procedures 

unless specifically asked. Pilots authorized by the FAA to use special instrument approach procedures must 

specifically request FDC NOTAM information for these procedures. Pilots who receive the information 

electronically will receive NOTAMs for special IAPs automatically. 

NOTE

 

Domestic Notices and International Notices are not provided during a briefing unless specifically requested by the pilot since 
the FSS specialist has no way of knowing whether the pilot has already checked the Federal NOTAM System (FNS) NOTAM 

Search website external links prior to calling. Airway NOTAMs, procedural NOTAMs, and NOTAMs that are general in 

nature and not tied to a specific airport/facility (for example, flight advisories and restrictions, open duration special 

security instructions, and special flight rules areas) are briefed solely by pilot request. Remember to ask for these notices 

if you have not already reviewed this information, and to request all pertinent NOTAMs specific to your flight. 

REFERENCE

 

AIM, Para 5

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3, Notice to Air Missions (NOTAM) System. 

d. 

Pilots are urged to use only the latest issue of aeronautical charts in planning and conducting flight 

operations. Aeronautical charts are revised and reissued on a regular scheduled basis to ensure that depicted data 

are current and reliable. In the conterminous U.S., Sectional Charts are updated every 6 months, IFR En Route 

Charts every 56 days, and amendments to civil IFR Approach Charts are accomplished on a 56

day cycle with 

a change notice volume issued on the 28

day midcycle. Charts that have been superseded by those of a more 

recent date may contain obsolete or incomplete flight information. 

REFERENCE

 

AIM, Para 9

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4, General Description of Each Chart Series. 

Preflight 

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