Skip to content
Vincony — fast, managed web hosting for your next site
The Pilots Desk
US-FAA14 CFR 121.542

Flight crewmember duties

Read the official rule

This regulation restricts flight crewmember activities during critical phases of flight to only those necessary for safe aircraft operation. During taxi, takeoff, landing, and flight below 10,000 feet (except cruise), crewmembers cannot perform non-safety tasks like making company calls about supplies, passenger announcements promoting the airline, or filling out paperwork. They also cannot engage in distracting activities such as eating meals, non-essential conversations, or reading unrelated materials.

The regulation defines "critical phases" specifically: all ground taxi operations (airplane movement under its own power on the airport surface), takeoff, landing, and operations below 10,000 feet except when cruising.

Additionally, throughout all flight time, crewmembers cannot use personal wireless devices or laptops at their duty stations unless directly related to aircraft operation, emergencies, safety, or approved employment communications.

This "sterile cockpit" rule ensures flight crews remain focused on flying the aircraft during the most demanding and accident-prone phases of flight.

*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.*

This is an original plain-English explanation for training and reference, not legal advice and not for navigation. Always rely on the current official rule linked above. Last reviewed June 20, 2026.