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The Pilots Desk
US-FAA14 CFR 91.505

Familiarity with operating limitations and emergency equipment

Read the official rule

Before every flight, the pilot in command must review the Airplane Flight Manual (if required for that aircraft) and familiarize themselves with all operating limitations. This includes checking placards, instrument markings, and listings that specify limitations set by the FAA, such as maximum speeds, weight limits, and operational restrictions.

Additionally, all required crewmembers must know what emergency equipment is installed on their assigned aircraft and understand how to use it. This means reviewing the location and operation of items like fire extinguishers, emergency exits, oxygen systems, and life rafts before departure.

This regulation ensures that pilots and crew are prepared to operate within the aircraft's limitations and can respond effectively in emergencies. It's particularly important when flying unfamiliar aircraft or after equipment changes, as operating limitations and emergency equipment can vary significantly between different aircraft types and configurations.

*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.