Jeppesen JeppView 3 - Manual (Page 215)

JeppView User's Guide
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• Update Letter includes a list of all terminal charts that have changed
since the last time the RoutePack was printed and saved. Update
letters are available only when printing a RoutePack and become
available after the RoutePack has been printed and saved.
The Only Changed Charts (updated) option prints only the terminal
charts listed in the Update Letter. After these charts are printed, they no
longer appear on the update letter.
o
Only Changed Charts (updated) is available only when the
Update Letter check box is selected.
o
When this option is selected, the Only Changed Charts (revised)
check box under the Revision Letter check box will become
unavailable.
o
This option is not available if the JeppView Charts for
[RoutePack] check box is selected.
NOTE
After printing the RoutePack, you need to save it in order to add the time-
stamp to the RoutePack. The time-stamp enables JeppView to know what
cycle the RoutePack was last printed enabling the Update Letter check box
at a later cycle. See
Saving and Deleting RoutePacks for additional
information.