Boeing 737-800 - Page 545

737 Flight Crew Operations Manual
Airplane General, Emergency
Equipment, Doors, Windows -
Systems Description
Boeing Proprietary. Copyright © Boeing. May be subject to export restrictions under EAR. See title page for details.
D6-27370-866-EGP 1.40.31
WARNING: The concentrated agent, or the by-products created by the heat
of the fire, are toxic when inhaled.
WARNING: If a fire extinguisher is to be discharged in the flight deck, then
all crewmembers are to wear oxygen masks and use 100%
oxygen with emergency selected.
CLASS
CLASS
CLASS
COMBUSTIBLE MATERIALS
FLAMMABLE LIQUIDS
LIVE ELECTRICAL
EUROPEAN/AUSTRALIAN CLASS OF FIRES
EXTINGUISHER
TYPE
There are three common classes of fire:
paper, wood, fabric, rubber,
certain plastics, etc., where
quenching by water is effective.
gasoline, oils, greases, solvents,
paints, burning liquids, cooking
fats, etc., where smothering
action is required.
Water (H2O)
saturates material
rekindling
BCF (Halon 1211)
BCF (Halon 1211)
fires started by short circuit or
faulty wiring in electrical,
electronic equipment or fires in
motors, switches, galley equipment,
etc., where a nonconducting
extinguisher agent is required.
NOTE: Whenever possible, electrical
equipment should be de-energized
before attacking a class C fire.
A
B
E
TYPE A
TYPE
B
TYPE
E
and prevents
E
B
A
A
WATER ON FLAMMABLE LIQUID FIRES SPREAD THE FIRE. WATER ON A LIVE
ELECTRICAL FIRE COULD CAUSE SEVERE SHOCK OR DEATH.
WARNING: THE WRONG EXTINGUISHER ON A FIRE COULD DO MORE HARM THAN GOOD. FOR EXAMPLE,
RATED EXTINGUISHER IS NOT AS EFFECTIVE AS H2O ON A CLASS FIRE.
September 15, 2016