787 Flight Crew Operations Manual
DO NOT USE FOR FLIGHT
Fire Protection -
Controls and Indicators
Copyright © The Boeing Company. See title page for details.
8.10.4 D615Z003-TBC
ARMED –
• arms all cargo fire extinguisher bottles
• arms the selected compartment extinguisher valve
• turns off both lower recirculation fans
• shuts down cargo heat
• commands the packs to provide the minimum air flow required to provide
pressurization
• shuts down the bulk cargo compartment ventilation system operation (aft
cargo fire only)
• shuts down the lavatory/galley vent fan (aft cargo fire only)
• puts associated (fwd or aft) equipment cooling system into the override
mode
• turns off miscellaneous equipment cooling fan (forward cargo fire only)
• shuts off in-flight entertainment equipment (IFE) cooling
• turns off Nitrogen Generation System (NGS)
• shuts off door 4 galley chiller units (aft cargo fire only)
• outflow valves move to 50/50 flow split for air flow stability
• turns off zonal dryer fans
Off (blank) – normal position.
Illuminated (red) –
• associated cargo compartment smoke is detected, or
• the FIRE/OVERHEAT TEST switch is pushed
Push – discharges the fire extinguisher bottles into the ARMED cargo
compartment.
Illuminated (amber) – the fire extinguishers have discharged.
Push and hold –
• sends fire/overheat test signals to the engine, APU, wheel well, and cargo
compartment fire detector systems
• tests flight deck fire and overheat indications (Fire and Overheat Detection
System Manual Fault Test, Ch. 8, Sec. 20)
4
CARGO FIRE ARM Switches
5
CARGO FIRE Warning Lights
6
CARGO FIRE Discharge (DISCH) Switch
7
CARGO FIRE Discharge (DISCH) Light
8
FIRE/OVERHEAT TEST Switch
February 15, 2010
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