ENGINE AFES COMPONENTS (continued)
The engine AFES activates automatically when the thermal detection system detects engine fires. Engine AFES
components are described on pages 4-7 through 4-9.
Engine Test and Alarm (T/A) Panel
The T/A panel provides status lights and switches and contains the electronic circuitry necessary to automatically
monitor the engine AFES.
The T/A panel monitors the thermal sensing element (fire wire) and activates one of the engine fire extinguishers when
an engine fire is detected.
When fire is detected, the red FIRE ALARM indicator on the TIA panel and the red ENGINE FIRE indicator on the
remote status indicator (RSI) in the crew compartment light.
The T/A panel is also equipped with a red-guarded, two-position MANUAL DISCHARGE toggle switch that allows the
driver to discharge the two engine fire extinguishers.
The engine AFES contains built-in test equipment (BITE) that automatically monitors the status of AFES components.
BITE permits the driver to check the status of AFES components for normal operation.