Symptom:
You may encounter the following application fault in the GUI logs of the appliance:

Wed Oct 29 12:00:00 2014 Critical: An application fault occurred: ('shared/UpdateSupport.py get_available_updates|142', "<type 'exceptions.KeyError'>", "'asyncos'", '[util/Aquarium.py screenLoop|408] [util/InternalLibrary.py inverseExtend|328] [util/InternalLibrary.py __call__|769] [screen/Controller.py __call__|27] [util/InternalLibrary.py __call__|769] [screen/CommonController.py __call__|49] [util/InternalLibrary.py __call__|769] [screen/AppController.py __call__|190] [util/InternalLibrary.py __call__|771] [antivirus/antivirus.py __call__|74] [screen/Controller.py executeAction|70] [security_services/status_update.py doGetAvailabilityStatusAction|20] [shared/UpdateSupport.py get_available_updates|142]')

This application fault is not known to cause any negative impact to the operation of the appliance.

Conditions:
This issue occurs when the appliance has been incorrectly configured to use a local upgrade server for an AsyncOS upgrade.

Specifically, for this to occur, the setting for local updates under Security Services -> Service Updates must be set so that the 'Update Servers (list):' section for non-AsyncOS updates (e.g. Sophos, IronPort Anti-Spam, etc.) points to a local updater that hosts a phoebe-x-x-x-xxx.xml used in a local AsyncOS upgrade.