KLM MD-11 - External APU Control Panel; Horn Switch

MD-11 Flight Crew Operations Manual
k
Fire Protection -
Controls and Displays
Fire.30.7
External APU Control Panel
1. APU FIRE Light - red
Illuminates red when APU fire detection system is energized or during test.
If illuminated due to detected fire, automatic APU shutdown will occur.
For APU fire detection to be armed, battery bus must be powered for all APU
operations.
2. AGENT LOW Light (2) - amber
Illuminates amber when fire extinguishing agent in respective bottle has been
discharged.
3. HORN Switch
The OFF position will silence the horn. When the switch is in the NORMAL
position, the horn circuitry is armed.
WARNING:
The horn is very loud. Wear ear protection.
C
AG(IGDS) LB1-3-0056
1
2
3
4
5
OFF
ON
NORMAL
NORMAL
NORMAL
FIRE
APU
1 2
LOW
AGENT
LOW
AGENT
SERVICE
INTERPHONE
OFF
NORMAL
HORN
SERVICE LIGHT
APU FIRE
1. ARM AGENT
APU OFF
AGENT ARM
FIRE AGENT 1
DISCHARGE
FIRE AGENT 2
DISCHARGE
2. DISCHARGE EITHER FIRE AGENT
October 02, 2006