Annunciators

Question 1

LH or RH ENGINE
FIRE
PUSH

Answer 1

Indicates fire loop detects temperature approximately 500°F (fire or overheat).
Pushing FIRE switchlight:
1. Closes Associated Fuel Firewall Shutoff Valve
2. Closes Associated Hydraulic Firewall Shutoff Valve
3. Closes Affected Engine’s Thrust Reverser Isolation Valve
4. Arms Both Fire Extinguisher Bottles And Illuminates Both White Bottle Armed Push Lights
5. Opens Affected Engine’s Generator Field Relay

Question 2

F/W
SHUTOFF
LH or RH

Answer 2

Operated by the ENGINE FIRE
switchlights, illumination indicates
the respective fuel and hydraulic
firewall shutoff valves are closed
and the generator field relay is
tripped.

Question 3

ARM

Answer 3

Indicates isolation valve is open and system is pressurized.

Question 4

UNLOCK

Answer 4

Indicates thrust reverser is not fully stowed. Reverser doors are unlocked. Light on in flight triggers Master
Warning.

Question 5

DEPLOY

Answer 5

Indicates thrust reverser is fully deployed.

Question 6

LO OIL
PRESS
LH or RH

Answer 6

Indicates oil pressure is below safe limits (40 PSI) on designated engine. An independent sensor
drives the oil pressure gauge.
Also triggers the Red MASTER WARNING.

Question 7

GROUND

IDLE

Answer 7

Illumination indicates fuel control is in ground idle mode

(46.5% turbine RPM). Engine acceleration from ground idle may be slow.

Question 8

FUEL
BOOST ON
LH or RH

Answer 8

Illumination indicates fuel boost pump is turned on by:

• Low Fuel Pressure
• Crossfeed Operations
• Engine Start
• Manual Boost Pump Switch

Question 9

FUEL LOW
PRESS
LH or RH

Answer 9

Illumination indicates fuel pressure is low. The low fuel
pressure switch (5 PSI) will activate the associated boost
pump to on if the boost pump switch is in the NORM position

Question 10

FUEL FLTR
BYPASS
LH or RH

Answer 10

Illumination indicates designated fuel filter is
contaminated and that an actual or impending bypass condition exists.
Consider the possibility of partial or total loss of both engines

Question 11

FUEL LOW
LEVEL
LH or RH

Answer 11

Indicates fuel quantity, as determined by a float switch,

is below ≈ 185 lbs of useable fuel in designated tank.

Question 12

BATT

O’ TEMP

Answer 12

Steady illumination indicates battery temp is
between 145°F and 160°F Flashing illumination
indicates battery temp exceeds 160°F
Also triggers the Red MASTER WARNING.

Question 13

GEN
OFF
LH or RH

Answer 13

Indicates the designated generator power relay is open.
Loss of BOTH generators triggers the Red MASTER
WARNING.

Question 14

AC
FAIL
LH or RH

Answer 14

AC BUS is below 90vac and above 130vac.

Also triggers the Red MASTER WARNING

Question 15

INVERTER

FAIL

Answer 15

Indicates the loss of power from designated inverter.

Failure of either inverter triggers the AC FAIL annunciator, which triggers the Red MASTER WARNING.

Question 16

CAB ALT

10000 FT

Answer 16

Indicates cabin pressure altitude is above 10,000 ft.

Also triggers the Red MASTER WARNING lights

Question 17

EMER

PRESS ON

Answer 17

Indicates emergency pressurization is either on
from manual selection or automatic activation by ACM
shutdown or failure.

Question 18

BLD AIR

GND

Answer 18

Indicates a high flow rate of bleed air is selected from the right engine for ACM ground operations; pressurization source selector is in GND.
Annunciator must be extinguished before takeoff.

Question 19

AIR DUCT

O’HEAT

Answer 19

Indicates temperature in the duct past the ACM leading to the cabin exceeds 157°C.

Question 20

ACM

O’PRESS

Answer 20

Indicates ACM bleed air supply pressure is more than

42 PSI.

Question 21

DOOR

SEAL

Answer 21

Indicates primary inflatable door seal is deflated. A

secondary seal is installed as a backup.

Question 22

BAGGAGE
DOOR
LH or RH

Answer 22

Indicates The Associated Nose Baggage Door is Unlocked or A Failure or Improper Position of the Door Switch.

Question 23

CABIN

DOOR

Answer 23

Possible Disengagement Of Lower Forward Cabin Door

Pin or A Failure or Improper Position of the Door Switch.

Question 24

TAILCONE

DOOR

Answer 24

Indicates Tailcone Door is Unlocked or A Failure Or Improper Position of the Door Switch.

Question 25

AUTO PILOT

OFF

Answer 25

Indicates autopilot disconnected, accompanied by 2-second tone.
MOMENTARY: Indicates disengaged by normal means:
- A/P TRIM DISC Button On Either Control Wheel Was Pressed
- Go-around Button Was Pushed
- Either Electric Elevator Trim Switch Was Actuated
STEADY: Indicates the autopilot disengaged by abnormal means:
- AC Or DC Power Loss
- Vertical Or Directional Gyro Failed
- A/P TEST Button Was Pushed
- Vertical Gyro Switch (HI) Was Actuated
- L/R Gyro Slaving Switch Was Actuated

Question 26

AP TORQUE

Answer 26

Indicates a torque failure was sensed or the torque servo disengaged.

Question 27

SPEED
BRAKE
EXTEND

Answer 27

Indicates left and right speedbrakes are fully extended.

Question 28

AP ROLL

MONITOR

Answer 28

Indicates autopilot roll rate monitor detects an autopilot excessive roll rate command.

Question 29

W/S AIR

O’HEAT

Answer 29

Intermittent: Indicates bleed air temp in the duct to the
windshield exceeds safe temperature limits (146°C),
system inoperative.
Continuous: Indicates probable temp controller failure or
windshield bleed air shutoff valve failed open.

Question 30

ENG
ANTI ICE
LH or RH

Answer 30

Indicates one or more of the following:

• Associated Engine Cowl Leading Edge is Below 220°F
• Associated Engine Stator Valve Not Open
• Associated Inboard Wing Section of Leading Edge Below 300°F

Question 31

WING
O’HEAT
LH or RH

Answer 31

Indicates associated inboard leading edge temperature

exceeds 160°F or wing bleed air supply line joint leaking.

Question 32

SURFACE

DEICE

Answer 32

Indicates wing and/or horizontal stabilizer deice

system pressure switches sense a minimum of 21 PSI.

Question 33

AOA HTR

FAIL

Answer 33

Indicates either the AOA probe heating element has failed OR the pitot heat switch is OFF.

Question 34

P/S HTR
OFF
LH or RH

Answer 34

Indicates Either:

• Power Is Lost To Pitot Tube Heater Or One Or Both Static Ports In Designated System
• Associated Pitot Heat Switch Is OFF

Question 35

GEAR

UNLOCKED

Answer 35

Gear Handle Down:
Indicates one or more gear not down and locked.
Gear Handle Up:
Indicates at least one gear has unlocked from the down position, but is not yet up and locked.

Question 36

HYD FLOW
LOW
LH or RH

Answer 36

ADVISORY - indicates output from the designated hydraulic pump(s) is below normal.

Question 37

HYD LOW

LEVEL

Answer 37

Indicates fluid in hydraulic reservoir is below
acceptable level (0.2 gallon or less).

Question 38

HYD PRESS

ON

Answer 38

Advises that the hydraulic system is pressurized.

Question 39

ANTI-SKID

INOP

Answer 39

Indicates anti-skid system is inoperative or the anti-skid

switch is OFF.

Question 40

POWER
BRAKE
LOW PRESS

Answer 40

Advises that the power brake hydraulic pressure is too low (less than 750 PSI).

Question 41

SG

HOT

Answer 41

Illumination indicates a overheat of symbol

generator.

Question 42

ATT

FAIL

Answer 42

A red annunciator of ATT FAIL above the aircraft wings (EFIS) indicates a PFD attitude failure.

Question 43

EADI

HOT

Answer 43

Illumination indicates an overheat of associated
display indicator(s).

Question 44

NOSE COMP

O’TEMP

Answer 44

Illumination indicates a high temp condition exists in the
nose avionics compartment. Annunciator should not
illuminate in flight unless some equipment failure exists.

Question 45

DISP

FAN

Answer 45

Illumination indicates failure of pilot’s EFIS cooling fan.

Question 46

MFD SG

HOT

Answer 46

Indicates multi-function display symbol generator

is overheating.

Question 47

MFD

HOT

Answer 47

Indicates multi-function display is overheating.

Question 48

MFD

FAN

Answer 48

Indicates multi-function display cooling fan failed.