Definitions.

CFR · 2024-01-01 · US · Title 14

The following definitions apply to those sections of part 121 that apply to ETOPS: (1) An airport that meets the requirements of part 139, subpart D of this chapter, excluding those that apply to aircraft rescue and firefighting service, or (2) A military airport that is active and operational. (1) For turbine-engine-powered airplanes with two engines, an area beyond 60 minutes from an adequate airport, computed using a one-engine-inoperative cruise speed under standard conditions in still air. (2) For turbine-engine-powered passenger-carrying airplanes with more than two engines, an area beyond 180 minutes from an adequate airport, (1) More than 60 minutes from an adequate airport for airplanes with two engines; (2) More than 180 minutes from an adequate airport for passenger-carrying airplanes with more than two engines. (1) Calculating required fuel reserves needed to account for an inoperative engine; or (2) Determining whether an ETOPS alternate is within the maximum diversion time authorized for an ETOPS flight.

official document · source cfr-2024 · id 14:§ 121.7