Fire Warning and Master Caution System
FIRE MASTER
WARN CAUTION
BELL CUTOUT PUSH TO RESET
FLT CONT ELEC
IRS APU
FUEL OVHT/DET
HYD DOORS ANTI-ICE OVERHEAD AIR COND ENG CAUTION PUSH TO RESET MASTER WARN BELL CUTOUT FIRE
Master Fire Warning (FIRE WARN) Lights
Illuminated (red) – indicates a fire warning (or system test) in engine, cargo, APU or main gear wheel well
.
fire warning bell sounds
.
if on ground, remote APU fire warning horn sounds. Push –
.
extinguishes both master FIRE WARN lights
.
silences fire warning bell
.
silences remote APU fire warning horn
.
resets system for additional warnings.
Note: Pushing fire warning bell cutout switch on overheat/fire protection panel results in same actions.
MASTER CAUTION Lights Illuminated (amber) – a system annunciator light has illuminated. Push – extinguishes both MASTER CAUTION lights
.
system annunciator light(s) extinguish
.
resets system for additional master caution conditions.
Copyright . The Boeing Company. See title page for details.
Warning Systems -Controls and Indicators 737 Flight Crew Operations Manual
System Annunciator Panel
Illuminated (amber) – an amber light, relating to illuminated system annunciator, has illuminated on forward overhead, aft overhead or overheat/fire protection panel.
To extinguish – push either MASTER CAUTION light.
To recall – push and release either system annunciator panel
.
if a master caution condition exists, appropriate system annunciator(s)
and MASTER CAUTION lights illuminate
.
a single fault in certain redundant systems, or some simple faults, cause
the system annunciator light to illuminate during a recall. The system
annunciator light will extinguish when the MASTER CAUTION light is
pushed.
Proximity Switch Electronic Unit Light
Proximity Switch Electronic Unit (PSEU) Light
Illuminated (amber) – . on the ground –
.
a fault is detected in the PSEU, or
.
an overwing exit flight lock fails to disengage when commanded.
.
in-flight –
.
inhibited from thrust lever advance for takeoff until 30 seconds after landing.
Copyright . The Boeing Company. See title page for details.
15.10.2 March 29, 2004
Warning Systems -Controls and Indicators
Mach/Airspeed Warning and Stall Warning Test Switches
MACH AIRSPEED WARNING TEST Switches
Push – tests respective mach/airspeed warning system
.
clacker sounds
.
inhibited while airborne.
STALL WARNING TEST Switches
Push – on ground with AC power available: each test switch tests its respective stall management yaw damper (SMYD) computer. No.1 SMYD computer shakes Captain’s control column, No.2 SMYD computer shakes First Officer’s control column. Vibrations can be felt on both columns
. inhibited while airborne.
Copyright . The Boeing Company. See title page for details.
Warning Systems -Controls and Indicators
Landing Gear Warning Cutout Switch
Landing Gear Warning Cutout Switch
Push – silences landing gear configuration warning aural indication at flaps up through 10 and above 200 feet RA.
Note: The aural indication cannot be silenced with the cutout switch at flaps greater than 10.
Copyright . The Boeing Company. See title page for details.
15.10.4 April 28, 2000
Warning Systems -Controls and Indicators 737 Flight Crew Operations Manual
Altitude Alert
Selected Altitude Alert YA613 - YA809, YC411 - YK104
A white box shows around the selected altitude display between 900 feet and 300 feet before reaching the selected altitude.
Selected Altitude Alert YC153, YC154
A white box shows around the selected altitude display between 900 feet and 200 feet before reaching the selected altitude.
Current Altitude Alert YA613 - YA809, YC411 - YK104
The white box around the current altitude display becomes bold between 900 feet
and 300 feet before reaching the selected altitude.
The box turns amber and flashes for 300 feet to 900 feet deviation from the
selected altitude.
Copyright . The Boeing Company. See title page for details.
Warning Systems -Controls and Indicators 737 Flight Crew Operations Manual
Current Altitude Alert
The white box around the current altitude display becomes bold between 900 feet and 200 feet before reaching the selected altitude.
中国航空网 www.aero.cn
航空翻译 www.aviation.cn
本文链接地址：737NG机组操作手册Flight Crew Operations Manual FCOM 3(153)
