Offline Mode
When the device is Online the crew should ensure that all Flight Documents that are required for each Flight are downloaded. When the device is Offline documents for Flights can not be downloaded but will be available to view.
If the crew has several Flights in one day, then they should download all the documents required for each Flight at a suitable opportunity when internet connection is available.
Refresh

If the user tries to refresh the Flight List (phone layout shown below) when Offline, then the following warning is displayed, and the refresh cannot be completed.
Download document

If the device is offline and the user attempts to download a document, then the following warning is displayed, and the action is not performed.
The user will need to reconnect to the internet to download the document.
It should be noted that Filtering might not fully function when Offline, only the data obtained can be used.