Operation Manual Part 2

Aerosoft – Digital Aviation
CRJ-70 & CRJ-900
AOM PART 2
Systems Description
VOL
5
5-1-45
26-Jul-2017
ENGINE FIRE EXTINGUISHING
EVENT
(Left engine fire
procedure is described;
the right engine fire
procedure is similar)
RESULT
GLARESHIELD INDICATIONS
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
Fire bell sounds
MASTER WARNING
LH FIRE PUSH switch lights come on
ON
OUT
OUT
ON
2
MASTER WARNING
switch light is
pressed in.
Fire bell is silenced
MASTER WARNING switch out
System is reset
ON
OUT
OUT
OUT
3
Left thrust lever is
set to the SHUTOFF
position
LH ENG FIRE PUSH
switch light remains on
ON
OUT
OUT
OUT
4
LH ENG FIRE PUSH
switch light is
pressed in
BOTTLE 1 ARMED PUSH
TO DISCH switch light comes on
BOTTLE 2 ARMED PUSH
TO DISCH switch light comes on
Left squibs of bottles 1 and 2 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
switch light 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
switch light remains on
ON
OUT
ON
OUT
8
BOTTLE 2 ARMED
PUSH TO DISCH
switch light 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