MD-11 Flight Crew Operations Manual
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Fire Protection -
Controls and Displays
Fire.30.4
3. HEAT/SMOKE Light (2) - red
SMOKE or HEAT illuminates red when smoke or heat is detected in the
respective lower cargo compartment. Ventilator airflow to respective
compartment shuts off. MASTER WARNING lights, EAD alert, and aural
tone come on.
4. Cargo FLOW Switch (2) - amber
Flow (ventilation fan) to the lower cargo area shuts off automatically if smoke
or heat is detected. DISAG then illuminates amber (flow does not agree with
switch position). OFF illuminates amber if flow is commanded off with this
switch. Auto control is prevented when OFF is illuminated.
October 02, 2006