CREW AFES COMPONENTS (continued)
Standard Control Electronic Amplifier (SCEA)
Processes input signals from OFSA units when hydrocarbon fuel fire is detected.
If the fire is large, the SCEA lights the FIRE ALARM lamp on the crew compartment T/A panel and activates the three
If a large fire continues, or a second large fire occurs, the SCEA activates the remaining crew compartment fire
If the OFSA detects a small fuel fire, the SCEA signals the T/A panel and the red FIRE ALARM lamp on the T/A panel
flickers. The crew uses a portable fire extinguisher or activates the red-guarded MANUAL DISCHARGE toggle switch
on the T/A panel to put out the small fire.
The SCEA contains built-in test equipment (BITE), which internally tests the unit for normal operation.
An LED on the T/A panel lights to indicate a fault in the SCEA unit.