Annunciators Flashcards by Richard Baker

LH or RH ENGINE
FIRE
PUSH

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

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F/W
SHUTOFF
LH or RH

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.

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ARM

Indicates isolation valve is open and system is pressurized.

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UNLOCK

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

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DEPLOY

Indicates thrust reverser is fully deployed.

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LO OIL
PRESS
LH or RH

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.

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GROUND

IDLE

Illumination indicates fuel control is in ground idle mode

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

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FUEL
BOOST ON
LH or RH

Illumination indicates fuel boost pump is turned on by:

Low Fuel Pressure
Crossfeed Operations
Engine Start
Manual Boost Pump Switch

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FUEL LOW
PRESS
LH or RH

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

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FUEL FLTR
BYPASS
LH or RH

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

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FUEL LOW
LEVEL
LH or RH

Indicates fuel quantity, as determined by a float switch,

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

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BATT

O’ TEMP

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.

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GEN
OFF
LH or RH

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

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AC
FAIL
LH or RH

AC BUS is below 90vac and above 130vac.

Also triggers the Red MASTER WARNING

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INVERTER

FAIL

Indicates the loss of power from designated inverter.

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

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CAB ALT

10000 FT

Indicates cabin pressure altitude is above 10,000 ft.

Also triggers the Red MASTER WARNING lights

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EMER

PRESS ON

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

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BLD AIR

GND

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.

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AIR DUCT

O’HEAT

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

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ACM

O’PRESS

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Indicates ACM bleed air supply pressure is more than

42 PSI.

DOOR

SEAL

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Indicates primary inflatable door seal is deflated. A

secondary seal is installed as a backup.

BAGGAGE
DOOR
LH or RH

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

CABIN

DOOR

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Possible Disengagement Of Lower Forward Cabin Door

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

TAILCONE

DOOR

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

AUTO PILOT | OFF

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

AP TORQUE

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

SPEED BRAKE EXTEND

Indicates left and right speedbrakes are fully extended.

AP ROLL | MONITOR

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

W/S AIR | O’HEAT

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.

ENG ANTI ICE LH or RH

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

WING O’HEAT LH or RH

Indicates associated inboard leading edge temperature | exceeds 160°F or wing bleed air supply line joint leaking.

SURFACE | DEICE

Indicates wing and/or horizontal stabilizer deice | system pressure switches sense a minimum of 21 PSI.

AOA HTR | FAIL

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

P/S HTR OFF LH or RH

Indicates Either: - Power Is Lost To Pitot Tube Heater Or One Or Both Static Ports In Designated System - Associated Pitot Heat Switch Is OFF

GEAR | UNLOCKED

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.

HYD FLOW LOW LH or RH

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

HYD LOW | LEVEL

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

HYD PRESS | ON

Advises that the hydraulic system is pressurized.

ANTI-SKID | INOP

Indicates anti-skid system is inoperative or the anti-skid | switch is OFF.

POWER BRAKE LOW PRESS

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

SG | HOT

Illumination indicates a overheat of symbol | generator.

ATT | FAIL

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

EADI | HOT

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

NOSE COMP | O’TEMP

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

DISP | FAN

Illumination indicates failure of pilot’s EFIS cooling fan.

MFD SG | HOT

Indicates multi-function display symbol generator | is overheating.

MFD | HOT

Indicates multi-function display is overheating.

MFD | FAN

Indicates multi-function display cooling fan failed.

Annunciators Flashcards

(48 cards)