Option - Dual cargo fire extinguisher bottle
Two fire extinguisher bottles are installed in the air conditioning mix bay on the forward wing
spar. Detection of a fire in either the forward or aft compartment will cause the FWD or AFT
cargo fire warning light to illuminate. The extinguishers are armed by pushing the
appropriate cargo fire ARMED switch. Once armed, the first bottle is discharged by pushing
the cargo fire DISCH switch. This results in the total discharge of the first bottle contents
into the selected compartment. The second bottle discharge is metered to discharge at a
reduced flow into the selected compartment. Discharge of the second bottle may be
disabled if the system is disarmed. The cargo fire DISCH light illuminates when a bottle is
discharged. It may take up to 30 seconds for the light to illuminate. On landing, if the first
bottle was discharged and the system remains armed, the second bottle is inhibited.
Option - Single Bottle
Option - Dual Bottle
Dual Loop Area Smoke Detectors
Dual Loop Area Smoke Detectors
Discharge Tubing / Nozzles
Discharge Tubing / Nozzles
Forward Cargo Compartment
| Aft Cargo Compartment |
Second bottle on 60 minute timer.
