What information does the Flight Mode Annunciator (FMA) in the PFD display?

The Flight Mode Annunciator (FMA) in the Primary Flight Display (PFD) is designed to provide pilots with critical information regarding the status of the Flight Directors (FD) and the current operational modes of the autopilot system. It displays current and impending flight director status, thus informing the pilot of how the aircraft is being controlled in terms of the autopilot’s active modes, such as climb, descent, and level flight. This is essential for maintaining situational awareness and ensuring proper flight management.

The other options, while important components of flight data, don't align with the primary function of the FMA. Flight altitude and speed are monitored through other instruments and indicators within the PFD, engine performance metrics are typically found on engine monitoring displays, and weather radar status would be displayed on a different part of the cockpit instrumentation designed for weather radar systems. Therefore, the role of the FMA is specific to the flight director and autopilot modes, making it an essential element for optimal flight operations.