If a malfunction is detected in FPS, the __ __ legend appears on the EICAS display

• A. FPS FAIL
• B. FPS WARN
• C. FPS ERROR
• D. FPS INOP

Answer: (A)

When the system detects a fault in Flight Path Stabilization, the EICAS display uses a fault-status label that combines the system name with a status word. In this case, the appropriate legend is FPS FAIL. This tells the crew that a malfunction has been detected in the Flight Path Stabilization system and is treated as a fault condition that requires attention.

This differs from a warning, which would indicate an advisory condition without a full fault, and from inoperative, which would mean the system is unavailable or disabled. The use of FAIL communicates a concrete fault that may affect automatic flight control and warrants investigation, while still allowing possible continued manual control if needed.