ETOPS Type Design Approval Basis

This regulation establishes when airlines must have type design approval and follow a Configuration, Maintenance, and Procedures (CMP) document to conduct Extended Operations (ETOPS)—flights where twin-engine aircraft operate far from suitable airports.

Key requirements:

Airlines cannot conduct ETOPS unless their aircraft has been type design approved for ETOPS and complies with the appropriate CMP document. The specific CMP requirements depend on the aircraft type and approval date.

Exceptions: This doesn't apply to passenger aircraft with more than two engines manufactured before February 17, 2015, or to twin-engine aircraft operating ETOPS of 75 minutes or less.

The regulation distinguishes between twin-engine aircraft approved for ETOPS up to 180 minutes versus beyond 180 minutes, and references different CMP standards based on when the airplane-engine combination received approval. Aircraft with more than two engines manufactured after February 17, 2015 must meet newer CMP standards.

*This is a plain-English summary for study only. The official 14 CFR text on this page is controlling — always read the current regulation and consult a CFI.*