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FOMS Menu 350 (Flight Level Codes Program)

The purpose of this program is to allow Flight Level Codes to be defined. Each two-character code can be associated with a range of flight levels that may be flown.

The available modes are:

  • Add*

  • Edit*

  • Delete*

  • Video

  • Screen

  • Hardcopy

  • Quit

*Note: Add, Edit, and Delete Mode are only available for some customers. Shared server customers do not have this access.

Add Mode



Flt Lvl Code

Enter the two-character (alphanumeric) code that you want to define.

Track Type

Indicate whether the track angles are to be measured as magnetic <M> or true <T>.

Atc Speed/ATC Altitude/Input Alt

Indicate whether the measurement type is:

  • Hard Metric <H>,

  • Soft Metric <S>, 

  • or Imperial <I>. 

Note: In Hard Metric, altitudes are measured in meters, and aircraft are required to fly at a specific number of meters. 

RVS Lvl Code

Enter the Flight Level Code to be used by RVSM-equipped aircraft, if such exists.

RVSM Min/Max Level

Enter the minimum and maximum flight levels for RVSM.


Enter the track angles that will define the first quadrant of flight levels.

Start Inc End


  1. the lowest altitude (in feet), 

  2. the increment between one level and the next,

  3. and the highest altitude before there is any change in increment. 

Note: All intermediate altitudes must be available.

Start Inc End


  1. The low altitude (in feet),

  2. The increment between one level and the next,

  3. and high altitude for each range of flight levels associated with this code for the initial quadrant. 

Note: Up to 4 such ranges may be entered for each directional quadrant. If you press <Enter> on a blank Start field (or if all four altitude range groups have been filled), the cursor will move to the next Angles input field. Continue to enter quadrants and associated flight levels as required.


This field is for display only, and will record the current system date when the record is saved to disk.


Enter your initials.

Edit Mode

  1. Enter the Flight Level Code for which you want to edit flight level ranges or quadrantal directions. If the record is on file, it will be displayed, with the cursor positioned on the Track Type field. 

  2. Move the cursor to the field you want to edit, either by pressing <Enter>, or the down arrow key. The down arrow will step you from line to line in the table, while the Enter key will step you through each and every field.

  3. When you have completed your changes, you may use <Ctrl>-E to escape to a confirmation prompt.

Delete Mode

  1. Enter the Flight Level Code that you want to delete. If the record is on file it will be displayed with a Really DELETE? prompt, otherwise a Record Not Found error message will be displayed. 

  2. You may choose to delete the record (enter <Y>) to select an alternate record (enter <N> and the screen will be cleared ready for a new flight level code entry), or to quit Delete mode without changing anything by entering <Q>.

Video Mode

  • Enter the flight level code you want to view. The program will retrieve the record, and display the information on screen.

  • Then use the up and down arrow keys to view the next Flight Level Code record on file. Note: If a record requires more than one page to be displayed, (indicated by the word More at the bottom of the page), use <Ctrl>-F to view the subsequent pages.

  • Pressing <Enter> will return you to a blank screen and allow you to enter another Flight Level Code. Entering <Q> will return you to a Command Line prompt.

Screen Mode

This mode will allow you to review several Flight Level Code records at once. When this mode is selected from the Command Line, the screen will change to a Report Selector.

  1. Enter the Flight Level Codes for the range of information you want to view. 

  2. Pressing <Enter> twice will cause the entire range of Flight Level Codes to be reported.

Hardcopy Mode

  1. Enter the first and last names of the track structures you want to view. The default values are A to Z. 

  2. The program will ask you to enter the number of copies you want to have printed. 

  3. Once this has been entered, the program requests confirmation of the information entered. Entering <Y> will send the requested report to a printer.

Quit Mode

Quitting from the command line will allow you to enter a menu number of the next program, or you may simply press <Enter>, and the last used menu will be recalled. 

Note: The following descriptions represent the typical access and privileges afforded to users designated as Dispatch Managers/Supervisors. Users with dispatcher privileges will have limited access to a subset of the screens presented.

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