The AGENT pushbutton is active only when which condition is met?

The AGENT pushbutton is active only when which condition is met?

• A. Only when the associated fire switch is released
• B. While the engine is running
• C. As long as the aircraft is on the ground
• D. Only when the associated fire switch is pressed

Answer: (A)

The AGENT pushbutton is part of the engine fire extinguishing control and its operation is gated by the state of the associated fire switch. After the fire handle has been pulled, the system arms and the fire switch can be in a reset/released state. The AGENT pushbutton becomes active only when that fire switch is released, meaning the crew has completed the initial fire-suppression steps and is now permitted to discharge the extinguishing agent. This interlock prevents unintended discharge while the fire switch remains engaged. It isn't dependent on the engine running, nor on whether the aircraft is on the ground, and it isn't activated only while the fire switch is pressed.

The AGENT pushbutton is part of the engine fire extinguishing control and its operation is gated by the state of the associated fire switch. After the fire handle has been pulled, the system arms and the fire switch can be in a reset/released state. The AGENT pushbutton becomes active only when that fire switch is released, meaning the crew has completed the initial fire-suppression steps and is now permitted to discharge the extinguishing agent. This interlock prevents unintended discharge while the fire switch remains engaged. It isn't dependent on the engine running, nor on whether the aircraft is on the ground, and it isn't activated only while the fire switch is pressed.