At press time an FAA final rule has been established to address the potential inflight shutdown of Aspen Evolution series PFD and MFD systems, including Aspen emergency backup displays. This applies to a wide swath of units and there have been at least 35 instances of screens going dark and rebooting uncommanded. In multi-screen suites (PFD and MFD combinations) all screens can be affected, and of course the shutdown takes down primary flight data in all suites where backup instruments have been removed.
The good news is the fix can be accomplished with a field-loaded software update (version 2.10 or 2.10.1) and a revision of the aircraft’s flight manual supplement.