Falcon 900EX Easy [Fire Protection Summary]
DASSAULT FALCON 900EX EASY · Systems Description
Overview
The document provides a summary of the fire protection systems on the Dassault Falcon 900EX EASy aircraft. It details the components, operation, and controls of the fire detection and extinguishing systems, as well as safety protocols for the flight crew.
- The aircraft is equipped with a fire protection and warning system.
- Fire extinguishing is provided by six fire cylinders and three portable extinguishers.
- Fire detection is available for each engine, APU, baggage compartment, and rear compartment.
- The system includes thermal switches for overheat detection in wheel wells.
- Fire control interfaces are located in the overhead control panel.
- Each fire extinguisher cylinder has a pressure gauge for monitoring.
- The system allows for multiple discharges in case of persistent fires.
- Emergency procedures must be followed even if a fire detection failure message is displayed.
Document
Source
Originally published by com.br. Sprinkle hosts a reference copy with an added summary, specifications and searchable full text.
Document details
- Type ·
- Systems Description
- File size ·
- 1.5 MB
- Publisher ·
- com.br
- Language ·
- en
Specifications & performance
Extracted from this document.
Specifications
- Portable extinguishers ·
- 3
- Fire extinguisher cylinders ·
- 6
What is the Falcon 900EX Easy [Fire Protection Summary]?
The Falcon 900EX Easy [Fire Protection Summary] is a systems description for the DASSAULT FALCON 900EX EASY.
Where does the Falcon 900EX Easy [Fire Protection Summary] come from?
This copy of the Falcon 900EX Easy [Fire Protection Summary] was originally published by com.br and is hosted on Sprinkle as a free, searchable reference copy.
Most owners only have the POH. Here's the essential set for the DASSAULT FALCON 900EX EASY.
- Pilot's Operating Handbook / AFM
- Checklist
- Maintenance Manual
- Parts Catalog (IPC)
- Systems & Wiring
- Service Bulletins on file
- Type Certificate (TCDS)
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In this document
Fire Protection Overview
The F900EX EASy airplane features a fire protection system that includes detection, warning, fuel shut-off, and extinguishing capabilities for engines, APU, and compartments.
Fire Detection System
Fire detection is achieved through sealed boxes containing pressure switches and temperature-sensitive tubing that trigger warnings upon detecting high temperatures.
Fire Extinguishing System
The system consists of six fire extinguisher cylinders, with specific allocations for each engine, the APU, and the baggage compartment.
Control Interfaces
Fire protection system controls are located on the overhead control panel, allowing the crew to manage fire extinguishing and fuel shut-off.
Portable Fire Extinguishers
Three portable halon extinguishers are available for use in the cabin and baggage compartments, depending on the aircraft configuration.
Safety Notes
The fire control panel is electrically segregated from other systems, and circuit breakers protect the fire protection system.
Safety notes
- Do not use this document for flight.
- Emergency procedures must be applied even when a fire detection failure message is displayed.
- Visual inspection of pressure gauges is necessary to check for accidental discharges.
- The system is protected by trip-free circuit breakers.
- A pressure relief valve on each cylinder prevents rupture due to overpressure.
Full document text
DASSAULT FALCON 900EX EASY SYSTEMS SUMMARY The material contained on this site is to be used for training purposes only. Do not use it for flight! Please note that this document is not affiliated in any way with any aircraft manufacturer. Fire Protection INTRODUCTION The F900EX EASy airplane is equipped with a fire protection system and a warning system that warns the flight crew of fire, smoke or overheating within the described sections of the airplane. Fire protection is provided by shutting-off fuel to the engine or APU when engine or APU fire has been detected and by discharging fire extinguishing agent into the concerned area (engine, APU, rear or baggage compartment). Fire protection system controls and test button and circuit protection interfaces are located within the flight deck. Falcon 900EX Easy [Fire Protection Summary] Page 1 FLIGHT DECK OVERVIEW Falcon 900EX Easy [Fire Protection Summary] Page 2 SOURCES Fire extinguishing is provided by a total of six fire cylinders. Five of them are located within the mechanic servicing compartment and one is located in the No 2 engine compartment. Three portable fire extinguishers (the number depends on airplane configuration) are at the crew disposal. MECHANIC SERVICING COMPARTMENT No 2 ENGINE COMPARTMENT CABIN AREA Four extinguisher cylinders are allocated for the three engines The APU and the baggage compartment shares one extinguisher cylinder One extinguisher cylinder is allocated for the mechanic servicing compartment (rear compartment) Three portable 2.5 lb. halon extinguishers are allocated for the flight deck, cabin and baggage compartment (The third one is optional) Three portable fire extinguishers 6 Fire extinguisher cylinders FIRE EXTINGUISHER CYLINDERS LOCATION Falcon 900EX Easy [Fire Protection Summary] Page 3 INTRODUCTION The airplane is equipped with a fire protection system, which provides the flight crew with detection, warning, fuel shut-off and fire extinguishing capability. Fire detection and extinguishing systems are provided for each engine, the APU, the baggage compartment and the rearcompartment. The compartment of each main wheel well is equipped with a heat sensor providing overheat detection and warning. The rear or forward (optional) toilet can also be equipped with an (optional) smoke detector that activates a message within the CAS window displays. The overhead control panel and CAS windows provide the fire protection system interfaces and controls for the flight crew. FIRE DETECTION FIRE DETECTION SYSTEM On each engine and in the APU compartment, a sealed box (detector) containing a warning and system integrity pressure switch, in conjunction with temperature sensitive capillary tubing, provides fire detection. The temperature sensitive capillary tubes contain a gas under pressure and a core that generates expanding gas when exposed to high temperature. When the tube is submitted to a local high heat source or flame, the expanding gas, generated from the core, increases the pressure thus triggering the pressure switch which activates the appropriate fire warning. Falcon 900EX Easy [Fire Protection Summary] Page 4 If the tube is submitted to an overall relatively low temperature increase, the general gas expansion is enough to increase the pressure and trigger the switch. This process is reversible so that when the fire is extinguished, the switches resume to normal position and warning stops. In case of gas leak, the pressure in the tube decreases and the system integrity pressure switch, also located within the sealed box, triggers. Then it activates a ENG.. FIRE DETECT FAIL message within the CAS windows. NOTE Emergency procedure must be applied even when a ENG .. FIRE DETECT FAIL message is displayed. FIRE DETECTION CAPILLARY LINE DIAGRAM Overheat detection within each wheel well is provided by a thermal switch. Within the mechanic servicing compartment, two overheat thermal switches are provided to monitor and detect overheat or a fire condition. Additionally, one smoke detector is located in the baggage compartment to detect smoke. Falcon 900EX Easy [Fire Protection Summary] Page 5 FIRE EXTINGUISHING cylinder FIRE EXTINGUISHING SYSTEM DIAGRAM Fire extinguishing is provided by a total of six fire extinguisher cylinders. Five fire extinguisher cylinders are located in the mechanic servicing compartment, which provides fire protection for each engine, the APU and the baggage compartment. The sixth fire extinguisher cylinder, located within the No 2 engine compartment, provides dedicated fire protection to the mechanic servicing compartment (rear compartment). The six cylinders are dedicated to: - cylinder 1: Rear Compartment, - cylinder 2: Baggage compartment or APU, - cylinder 3: Discharge 1 Engine 1 or Discharge 2 Engine 2, - cylinder 4: Discharge 1 Engine 2 or Discharge 2 Engine 1, - cylinder 5: Discharge 1 Engine 2 or Discharge 2 Engine 3, - cylinder 6: Discharge 1 Engine 3 or Discharge 2 Engine 2. The engine fire extinction system is designed to enable up to two successive discharges: one cylinder discharge per percussion on No 1 and No 3 engines, and two cylinder discharge per percussion on No 2 engine because of its location within the aft fuselage section. The second discharge is available in case the engine fire persists after the first one. Falcon 900EX Easy [Fire Protection Summary] Page 6 The APU and the baggage compartment share one fire extinguisher cylinder. This provides a one-cylinder percussion, which can be selected for either the APU or the baggage compartment as required. Each cylinder is equipped with a pressure gauge and a correction table to check the proper charging level according to the ambient temperature. Visual inspection of that pressure gauge is the only way to tell whether a fire extinguisher cylinder percussion has accidentally occurred during ground operation. PORTABLE FIRE EXTINGUISHERS
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Three portable halon extinguishers 2.5 lb (1.13 kg), located in the forward crew closet and cabin area (the number of extinguishers depends on airplane configuration), are available in the event the crew has to extinguish a fire in the cabin or baggage compartments. Falcon 900EX Easy [Fire Protection Summary] Page 7 CONTROL Interfaces and controls of the fire protection system are located in the upper portion of the overhead control panel. They include controls of all engine fuel shut-off valves (FIRE 1, 2 and 3), the engines (DISCH 1, 2) and APU (FIRE APU) cylinder discharge pushbuttons, the rear (FIRE REAR COMP) and baggage (FIRE BAG COMP) compartment discharge pushbuttons, and a FIRE TEST button. FIRE CONTROL OVERHEAD PANEL APPLICABLE TO AIRPLANE S/N 120 TO 146 FIRE CONTROL OVERHEAD PANEL APPLICABLE TO AIRPLANE S/N ≥ 147 Falcon 900EX Easy [Fire Protection Summary] Page 8 SYNTHETIC TABLE TO ACTIVATE CONTROL FUNCTION TO DEACTIVATE Guarded Activates closure of the corresponding engine fuel shut-off valve so that fuel feeding is cut off The CLOSED status light flashes during shut-off valve operation. Fuel shut-off valve is closed when CLOSED indication is illuminated fixed If a discrepancy between pushbutton control and fuel shut-off valve is detected, the CLOSED status light flashes NOTE 1 light goes out when fire is extinguished NOTE 2 The pushbutton is also used to open the fuel shut-off valve again Guard raised to push and command fuel valve shut-off Safety guarded, FIRE pushbutton not pushed yet FIRE pushbutton pushed on. 1 illuminates steady white Raise the guard and push to discharge. Discharges extinguishing agent from fire extinguisher cylinder(s) to the detected engine fire Cylinder percussion: 1 steady white DISCH steady amber Falcon 900EX Easy [Fire Protection Summary] Page 9 TO ACTIVATE CONTROL FUNCTION TO deACTIVATE Safety guarded Discharges extinguishing agent from fire extinguisher cylinder to the detected APU fire NOTE light goes out when fire is extinguished Raise the guard and push to discharge the cylinder Safety guarded Discharges extinguishing agent from fire extinguisher cylinder to the rear compartment NOTE light goes out when fire is extinguished Raise the guard and push to discharge the cylinder Safety guarded Discharges extinguishing agent from fire extinguisher cylinder to the baggage compartment NOTE light goes out when fire is extinguished and / or smoke is no longer detected Raise the guard and push to discharge the cylinder Falcon 900EX Easy [Fire Protection Summary] Page 10 INDICATION All fire detection warnings are provided through the illuminated pushbutton(s) on the fire control panel and through messages on the CAS window displays. No fire detection indications are provided through any synoptic windows. An audio warning system is activated when a fire is detected (engines, APU, BAG or REAR compartments) or fire test is performed. INTRODUCTION TO SYSTEM PROTECTION The fire control panel is physically and electrically segregated from the other systems located on the overhead control panel (except for the illuminated white markings on the front panel). CIRCUIT BREAKERS The Fire Protection System is protected by conventional trip-free circuit breakers located above the overhead panel. WARNINGS-FIRE CIRCUIT BREAKERS Falcon 900EX Easy [Fire Protection Summary] Page 11 Each cylinder is always dually electrically powered either by the LH bus or the RH bus for the first discharge and by the Secondary Flight Display standby battery for the second discharge. A2 bus B2 bus FUEL SHUT-OFF VALVES CIRCUIT BREAKERS CYLINDER OVERPRESSURE PROTECTION A pressure relief valve fitted on each cylinder provides protection against a rupture. In case of an overpressure, the relief valve frangible disk bursts and relieves pressure by discharging the extinguishing agent through the mechanic servicing compartment drainage system. Falcon 900EX Easy [Fire Protection Summary] Page 12 INTRODUCTION In the following, ground and in-flight situations have been selected to help the crew to understand the symbols and the logic of the fire control panel and displays. ENGINE AND APU FIRE EXTINGUISHING ACTION RESULT Engine or APU on fire light on + audio warning + FIRE ENG .. or FIRE APU CAS message Raise the guard and push pushbutton Fuel shut-off valve closes CLOSED status light flashes during shut-off valve operation Fuel shut-off valve is closed when CLOSED indication is illuminated fixed Raise the guard and push DI SCH pushbutton Corresponding fire extinguisher cylinders discharged 1 light steady white No 1 DISCH light becomes steady amber 2 light steady white If light goes out, the fire is extinguished If light remains illuminated, the fire persists: raise the guard and push DI SCH to activate the percussion of the second cylinder Extinguishing a fire on No 2 engine activates the discharge of two cylinders per percussion. This means that the four extinguishers are discharged if DI SCH and DI SCH have been pressed. Pressing the pushbutton automatically shuts off fuel to the APU and activates single fire cylinder percussion. Failure of the fire detection system is indicated by ENG .. FIRE DETECT FAIL or the APU FIRE DETECT FAIL CAS messages. Falcon 900EX Easy [Fire Protection Summary] Page 13 WHEEL WELL / REAR COMP / BAG COMP / SMOKE IN TOILET CONTEXT RESULT Overheat detected by one of the LH or RH sensors in wheel wells WHEEL XX OVHT CAS message Overheat detected by sensor in the rear compartment light on + audio warning + FIRE REAR COMP CAS message Pressing the pushbutton discharges a single fire extinguisher cylinder into this compartment Smoke detected in the baggage compartment light on + audio warning + FIRE BAG COMP CAS message Pressing the pushbutton discharges a single fire extinguisher cylinder into this compartment Smoke detected in the toilet compartment (option) SMOKE IN FWD TOILET or/and SMOKE IN AFT TOILET CAS message(s) Falcon 900EX Easy [Fire Protection Summary] Page 14 FIRE TEST OPERATION FIRE CONTROL PANEL The following example gives the indications displayed during normal ground operation of the fire test. FIGURE 02-26-25-00 FIRE CONTROL PANEL WITH TEST PUSHBUTTON Pressing the fire test pushbutton activates the warning horn and illuminates all the pushbuttons on the fire panel. illuminates 5 seconds after the button has been pressed. All the CAS messages associated to the illumination are displayed in the CAS windows. Test is OK when all the here above warnings are activated. TEST SYNOPTIC Engines, APU and wheel well fire detection systems test is available in the TEST synoptic by pressing the LIGHTS soft key. If a failure is detected on the wheel well fire detection system, the WHEEL XX OVHT CAS message is displayed. If a failure is detected on the engines or APU fire detection systems, the ENG .. FIRE DETECT FAIL or the APU FIRE DETECT FAIL CAS messages are displayed. Test is OK when OK is displayed in the TEST synoptic. Falcon 900EX Easy [Fire Protection Summary] Page 15 FIRE ON ENGINE 2 AND DISCH 1 ALREADY ACTIVATED FIRE CONTROL PANEL WITH FIRE ON ENGINE 2 AND DISCH 1 ALREADY ACTIVATED ACTION RESULT Raise the guard and push pushbutton No 2 engine fuel valve closed CLOSED illuminates 1 and 2 lights illuminate white Raise the guard and push DI SCH pushbutton Engine fire extinguisher cylinders No 4 and No 5 discharged 1 light steady white No 1 DISCH light becomes steady amber 2 light steady white Engine fire extinguisher cylinders No 3 and No 6 ready to be discharged pushbutton still illuminated Fire on No 2 engine requires additional discharge Raise the guard and push DI SCH pushbutton Engine fire extinguisher cylinders No 3 and No 6 discharged 1 and 2 light steady white No 2 DISCH light becomes steady amber Falcon 900EX Easy [Fire Protection Summary] Page 16 CAS MESSAGES CAS MESSAGE DEFINITION FIRE APU Fire detected in APU compartment FIRE BAG COMP Fire detected in baggage compartment FIRE ENG .. Fire detected on engine (1/2/3) FIRE REAR COMP Fire detected in rear compartment SMOKE IN XX TOILET Smoke detected in the aft or/and forward toilet(s) WHEEL XX OVHT Excessive temperature in (LH/RH) wheel compartment APU FIRE DETECT FAIL APU fire detection system failure (on ground only) ENG .. FIRE DETECT FAIL Failure of engine (1/2/3) fire detection system REAR COMP FIRE DETECT FAIL Failure of rear compartment fire detection system Falcon 900EX Easy [Fire Protection Summary] Page 17