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The water extinguisher is located in the aft cabin.
Bromochlorodifluoromethane (BCF)
The BCF extinguisher contains a liquefied gas agent (Halon 1211) under
pressure. The pressure indicator shows an acceptable pressure range, a
RECHARGE range, and an OVERCHARGED range. A safety pin with a pull ring
prevents accidental trigger movement. When released, the liquefied gas agent
vaporizes and extinguishes the fire. The extinguisher is effective on all types of
fires, but primarily on electrical, fuel, and grease fires.
WARNING: If a fire extinguisher is to be discharged on the flight deck, then
all crewmembers are to wear oxygen masks and use 100%
oxygen with EMERGENCY selected.
To Use: Remove from stowage. Holding the extinguisher upright, remove
the ringed safety pin. Aim the extinguisher at the base of the
flames from a distance of six feet and press the top lever. Use a
side-to-side motion to suppress the fire.
One BCF extinguisher is located on the aft flight deck wall. A second one is
located on the forward bulkhead by the main entry door or at the forward galley.
The third is located in the aft cabin.
Each class of fire calls for specialized action. Using the wrong extinguisher
may do more harm than good. For your own protection, you should know these
basic types, how to use them, and why.
AIRCRAFT GENERAL
Sec. 6.1 Page 96 737
Rev. 11/15/02 #41 Continental Flight Manual
CLASS OF FIRES
There are three common classes of fire: EXTINGUISHER TYPE
CLASS ! COMBUSTIBLE paper, wood, fabric, rubber,
MATERIALS certain plastics, etc., where
quenching by water is
effective.
TYPE !
Water (H2O) saturates
material and prevents
rekindling.
CLASS " FLAMMABLE gasoline, oils, greases,
LIQUIDS solvents, paints, burning
liquids, cooking fats, etc.,
where smothering action is
required.
TYPE "
BCF (Halon 1211)
CLASS # LIVE fires started by short circuit or
ELECTRICAL 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.
TYPE #
BCF (Halon 1211)
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. Water on flammable
liquid fires spread the fire. Water on a live electrical fire
could cause severe shock or death.
77376064
HALON
WATER FIRE EXTINGUISHER BCF FIRE EXTINGUISHER
(HALON 1211)
HANDLE
HANDLE
LEVER
DISCHARGE
NOZZLE
DISCHARGE
NOZZLE
TRIGGER
SAFETY WIRED
RING SAFETY
PIN
PRESSURE
GAUGE
The flight crew should go on 100% oxygen whenever a portable fire
extinguisher is to be discharged on the aircraft. Landing at the nearest suitable
airport is recommended.
AIRCRAFT GENERAL
737 Sec. 6.1 Page 97
Flight Manual Continental Rev. 11/15/02 #41
CREWMEMBER PROTECTIVE BREATHING EQUIPMENT
The PBASCO protective breathing equipment (PBE) is a closed circuit
breathing apparatus designed to help protect the wearer’s eyes and respiratory
tract in an irrespirable atmosphere by isolating the breathing functions from the
environment.
The PBE is a hood device, which completely encloses the head of the wearer
and seals at the neck with a thin elastic membrane. The chemical air
regeneration system is based on the use of potassium superoxide (K02). It is
silently and reliably powered by the exhalation of the wearer into an oronasal
mask cone located within the hood.
The hood encloses the head of the wearer and is sealed to the wearer by the
neckseal. The enclosed volume of the hood represents approximately 8 liters
available rebreathing volume, or counter lung. The oronasal mask serves to
direct the exhaled breath containing CO2 and water vapor back through the KO2
bead where excess moisture and CO2 are removed, and drier oxygen is added
for return into the hood volume. Inhalation is accomplished directly from the
interior of the hood through the inhalation valves located on the oronasal mask.
A relief valve located at the back of the hood is used to prevent buildup of
excessive pressure within the hood, and to provide emergency pressure relief in
the event of a sudden reduction in cabin pressure. The chlorate starter candle
mounted on the bottom of the KO2 canister discharges directly into the canister.
The chlorate starter candle is designed to deliver a fixed volume of
　
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