Responsibility for operational control: Flag operations

This regulation establishes the chain of responsibility for Part 121 flag operations (international flights). The certificate holder has overall operational control responsibility, but specific duties are divided between the pilot in command and the aircraft dispatcher.

Before flight, the pilot and dispatcher share joint responsibility for planning, evaluating delays, and releasing the flight according to regulations and the airline's operations specifications. During flight, the dispatcher monitors progress, issues safety instructions, and can cancel or redirect the flight if necessary—as can the pilot in command if either believes safe operations are compromised.

The pilot in command has ultimate authority over the aircraft, crew, passengers, and cargo during flight time. This authority extends to directing all crewmembers' duties, regardless of whether the pilot holds certificates for those specific positions. The regulation also prohibits careless or reckless operation that endangers life or property.

This shared responsibility system ensures both ground-based operational oversight and in-flight command authority work together for safe flight operations.

*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.*