During annual.

[mshac]

While certainly a good thorough annual inspection could go much farther, the "FAA Minimums" for an annual inspection don't require removal of either item. As was mentioned, there are other excellent reasons to remove them, but your shop may charge you extra because it isn't in the FAA requirements.

What are the FAA requirements? Well here they are: https://www.cessnaflyer.org/knowledg...checklist.html