Commercial Pilot License (CPL) Practice Exam 2025 - Free Commercial Pilot License Practice Questions and Study Guide

When an attitude indicator is exceeded beyond its limits, it typically spills or tumbles. This phenomenon occurs when the aircraft's pitch or roll exceeds the instrument's designed capabilities. In this case, the gyroscope within the attitude indicator may become displaced from its reference position due to excessive force, leading to a condition where the display no longer accurately reflects the aircraft's true attitude.

The unique construction of the attitude indicator, often using a gyroscopic mechanism, is susceptible to failure if the aircraft experiences extreme maneuvers. When the instrument tumbles, it becomes difficult, if not impossible, for the pilot to ascertain the aircraft's actual orientation, which can be critical when flying in adverse conditions or while performing complex maneuvers. Understanding this characteristic is vital for pilots, as it highlights the importance of managing aircraft attitudes within safe operational limits to ensure the attitude indicator provides valid information.