(a) Unless otherwise required by part 93 of this chapter or unless
otherwise authorized or required by the ATC facility having jurisdiction
over the Class E airspace area, each person operating an aircraft on or in
the vicinity of an airport in a Class E airspace area must comply with the
requirements of §91.126.
(b) Departures. Each pilot of an aircraft must comply with any
traffic patterns established for that airport in part 93 of this chapter.
(c) Communications with control towers. Unless otherwise
authorized or required by ATC, no person may operate an aircraft to, from,
through, or on an airport having an operational control tower unless
two-way radio communications are maintained between that aircraft and the
control tower. Communications must be established prior to 4 nautical
miles from the airport, up to and including 2,500 feet AGL. However, if
the aircraft radio fails in flight, the pilot in command may operate that
aircraft and land if weather conditions are at or above basic VFR weather
minimums, visual contact with the tower is maintained, and a clearance to
land is received. If the aircraft radio fails while in flight under IFR,
the pilot must comply with §91.185.