A small unmanned aircraft hovers 200 feet above a runway, causing a manned aircraft holding short of the runway to delay its takeoff. Per AC 107-2A § 5.10.1.1, what has the small UAS operation done?
Why: AC 107-2A § 5.10.1.1 uses this exact scenario to illustrate that the small UA would not present an immediate traffic conflict and would not violate § 107.37(a)'s right-of-way provision, but it would still have interfered with operations at the airport, which § 107.43 prohibits.
§ 107.37(a) is a right-of-way rule about yielding to aircraft and vehicles, not a fixed vertical-separation figure from runways; no 500-foot rule exists in it.
This ignores § 107.43's separate prohibition on interfering with airport operations and traffic patterns, which applies even without a direct flight-path conflict.