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Detection and Extinguishing (FIDEEX) REV 3, May 03/05 Flight Crew Operating Manual CSP C--013--067 ENGINE FIRE EXTINGUISHING EVENT Left engine fire GLARESHIELD INDICATIONS (procedure is described, the right engine fire procedure is similar) RESULT LH ENG FIRE PUSH BOTTLE 1 ARMED PUSH TO DISCH BOTTLE 2 ARMED PUSH TO DISCH MASTER WARNING 1 Fire condition occurs in the left engine fire zone. -- Firebell sounds. -- MASTER WARNING and LH FIRE PUSH switchlights come on. ON OUT OUT ON 2 MASTER WARNING switchlight is pressed in. -- Firebell is silenced. -- MASTER WARNING switchlight goes out and the system is reset. ON OUT OUT OUT 3 Left thrust lever is set to the SHUTOFF position. -- LH ENG FIRE PUSH switchlight remains on. ON OUT OUT OUT 4 LH ENG FIRE PUSH switchlight is pressed in. -- BOTTLE 1 ARMED PUSH TO DISCH switchlight comes on. -- BOTTLE 2 ARMED PUSH TO DISCH switchlight comes on. -- Left squibs of bottles 1 and 2 are armed. -- Left engine fuel SOV closes. -- Left bleed air SOV closes. -- Left hydraulic SOV closes. ON ON ON OUT 5 BOTTLE 1 ARMED PUSH TO DISCH switchlight is pressed in. -- Left squib on bottle 1 fires. -- FIREX agent from bottle 1 discharges into left power plant nacelle. ON ON ON OUT 6 Bottle 1 fully discharges. -- The pressure switch on bottle 1 opens as pressure drops below the set point. -- ENG BTL 1 LO is displayed on the EICAS. ON OUT ON OUT 7 Fire condition in left engine persists. -- LH ENG FIRE PUSH switchlight remains on. ON OUT ON OUT Vol. 1 10--20--7 FIRE PROTECTION Fire Detection and Extinguishing (FIDEEX) REV 3, May 03/05 Flight Crew Operating Manual CSP C--013--067 ENGINE FIRE EXTINGUISHING 8 BOTTLE 2 ARMED PUSH TO DISCH switchlight is pressed in. -- Left squib on bottle 2 fires. -- FIREX agent from bottle 2 discharges into left engine nacelle. ON OUT ON OUT 9 Bottle 2 fully discharges. -- The pressure switch on bottle 2 opens as pressure drops below the set point. -- ENG BTL 2 LO is displayed on EICAS. OUT OUT OUT OUT B. APU Detection The APU fire detection system is used to detect a fire or overheat condition in the APU enclosure. The detection system consists of dual heat sensitive detection loops arranged in parallel around the APU and the forward APU firewall and above the two APU compartment doors. Each loop is connected to the FIDEEX and is monitored continuously for fire or overheat conditions. In normal operation, both detection loops must detect a fire or overheat condition before a fire warning alarm is issued. If a short or open circuit fault is detected in one loop, the FIDEEX control unit will automatically switch to single loop detection and signal the EICAS to display a APU FIRE FAIL caution message on the EICAS primary page. Vol. 1 10--20--8 FIRE PROTECTION Fire Detection and Extinguishing (FIDEEX) REV 3, May 03/05 Flight Crew Operating Manual CSP C--013--067 APU Fire Detection --- Block Schematic Figure 10---20---5 PILOT-- INITIATED TEST COPILOT COPILOT’S GLARESHIELD PANEL FIREBELL CHIME CHIME CHIME DCU APU FIRE PUSH FIRE FAIL FIRE WARN TEST FIRE DETECTION/ FIREX MONITOR PANEL CHANNEL A DETECTION LOGIC LOOP A LOOP B CHANNEL B DETECTION LOGIC LOOP A LOOP B FIRE DET B FIRE DET A CB1--N2 CB1--N1 28 VDC BATT BUS CBP--1 FIDEEX CONTROL UNIT FIRE SYS FAULT (STATUS) APU FIRE (WARNING MSG) L (R) FIRE FAIL (CAUTION) FIRE SYS OK (ADVISORY) EICAS DISPLAY APU ENCLOSURE ELEMENT 1 ELEMENT 2 ELEMENT 3 ELEMENT 4 LOOPA ELEMENT 1 ELEMENT 2 ELEMENT 3 ELEMENT 4 LOOP B Vol. 1 10--20--9 FIRE PROTECTION Fire Detection and Extinguishing (FIDEEX) REV 3, May 03/05 Flight Crew Operating Manual CSP C--013--067 Extinguishing The APU fire extinguishing system provides a means to extinguish fires in the APU enclosure. The system consists of a single FIREX bottle, located in the aft equipment compartment, a low pressure switch, a bottle pressure gauge and discharge lines. The www.aero.cn 航空翻譯 www.aviation.cn 本文鏈接地址：龐巴迪挑戰(zhàn)者手冊3
