A remote pilot plans to fly a small unmanned aircraft in Class G airspace that borders the surface area of Class E airspace designated for a nearby airport, staying entirely outside that designated surface area. Under § 107.41, is ATC authorization required?
Why: § 107.41 lists only Class B, C, D airspace and the Class E surface area designated for an airport as requiring prior ATC authorization. Class G airspace is not named in the rule, so an operation that stays entirely within Class G does not trigger § 107.41.
Part 107 does not use a distance-from-airport trigger such as 5 nautical miles; § 107.41's trigger is airspace classification, not proximity to an airport.
This misreads § 107.41 as covering all airspace; the rule names specific controlled-airspace classes and the Class E surface area, and does not reach uncontrolled (Class G) airspace.