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There is no U.S. requirement to file the aircraft Mode S Code in Item

6. SELCAL code (Item 18 SEL/)

(a)

Flights with HF radio and Selective Calling capability should include
their 4

-

letter SELCAL code. Per

the U.S. AIP, GEN 3.4, Paragraph 9, Selective Calling System (SELCAL)
Facilities Available.

(b)

The SELCAL is a communication system that permits the selective calling
of individual aircraft over

radio

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telephone channels from the ground station to properly equipped
aircraft, to eliminate the need for the

flight crew to constantly monitor the frequency in use.

EXAMPLE

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SEL/CLEF

7. Performance Category (Item 18 PER/)

Include the appropriate single

-

letter Aircraft Approach Category as defined in the Pilot/Controller
Glossary.

EXAMPLE

-

PER/A

TBL 4

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Flight Routing Information

Item

International Flight Plan

(FAA Form 7233

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4)

Domestic U.S. Requirements

Equivalent Item on

Domestic Flight Plan

(FAA Form 7233

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1)

Departure Airport

Item 13

Required

Item 2

Departure Time

Item 13

Required

Item 1

Cruise Speed

Item 15

Required

Requested Altitude

Item 15

Required

Item 3

Route

Item 15

Required

Delay En Route

Item 15, Item 18 DLE/

Required

Destination Airport

Item 16

Required

Item 11

Total Estimated Elapsed Time

Item 16

Required

Item

Alternate Airport

Item 16
Item 18 ALTN/ (Destination Alternate).

RALT/ (En route Alternate); TALT/
(Take

-

off Alternate)

If necessary

No need to file for domestic U.S. flight

Estimated Elapsed Times

Item 18 EET/

Include when filing flight plan with center
other than departure center

f. Instructions for Flight Routing Items

1. Departure Airport (Item 13, Item 18 DEP/)

(a)

 Enter the departure airport. The airport should be identified using
the four

-

letter location identifier from

FAA Order JO 7350.9, Location Identifiers, or from ICAO Document 7910.
FSS and FAA contracted flight plan

filing services will allow up to 11 characters in the departure field.
This will permit entry of non

-

ICAO identifier

airports, and other fixes such as an intersection, fix/radial/distance,
and latitude/longitude coordinates. Other

electronic filing services may require a different format.

NOTE

-

While user interfaces for flight plan filing are not specified, all
flight plan filing services must adhere to the appropri-

ate Interface Control Document upon transmission of the flight plan to
the control facility.

(b)

 When the intended departure airport (Item 13) is outside of domestic
U.S. airspace, or if using the paper

version of FAA Form 7233

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4, or DoD equivalent, if the chosen flight plan filing
service does not allow

FAA Form 7233

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 International Flight Plan

Appendix 4

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