Falcon 20 F Fault Panel

Question 1

What is indicated by the HOT BAT light?

Answer 1

Ni Cad battery exceeds 150 degrees F.

Question 2

PARK BRAKE

Answer 2

Brake system pressure below 1200 psi

Question 3

REFUEL

Answer 3

Triggered by any one of the following 4 situations:

1. Refuel Switches are not off (panel active)
2. Refuel Doors are open
3. Master refuel switch is on
4. Vent Valve is open

Question 4

BATTERY

Answer 4

At least one battery is not connected to the main bus.

Question 5

APU

Answer 5

Flashes when APU is operating above 12,000 ft and approaching the 15,000ft APU operational limit.

Question 6

COMPTR 1, COMPTR 2

Answer 6

1. The respective engine computer has failed.
2. The computer switch is in the manual or off position
3. Voltage to the DEEC is less than 12.5 volts
4. Voltage of the emergency computer battery(ies) is less than 22VDC

Question 7

BLEED OVHT 1, BLEED OVHT 2

Answer 7

The respective engine bleed has exceeded temperature limits (greater than 300°C). This also causes the respective P3 and PRV valves to close automatically.

Question 8

DOOR

Answer 8

The main cabin entrance door is not locked, or the exterior door handle is not in the locked position.
The rear compartment access door is not closed. This light operates from one microswitch mounted on the rear compartment door lock.

Question 9

GEN 1, GEN 2

Answer 9

The left or right engine DC generator is not supplying power to the main bus. Either DC GEN light illuminates when the corresponding reverse-current relay opens.

Question 10

HYD 1, HYD 2

Answer 10

Main hydraulic pump pressure is less than 2150 psi.

Question 11

Amber FUEL TRANSFER lights that are below the fuel gauge are illuminated (not on the master fault panel).

Answer 11

Fuel transfer pressure drops below 4 psi. (Does not illuminate if transfer switch is turned off)

Question 12

YAW OFF

Answer 12

It indicates that the yaw damper is disengaged. Automatic disengagement takes place when the yaw damper deflection exceeds 4° or there is a loss of AC power.

Question 13

OIL 1, OIL 2

Answer 13

The respective engine oil pressure is too low. It illuminates when the oil pressure drops below 25 psi or a chip is detected.

Question 14

AQ ROLL or AQ PITCH

Answer 14

Two red Arthur warning lights (one for roll, one for pitch) illuminate whenever the Arthur unit position does not agree with the high or low-speed modes of flight. High speed disagreement interrogation takes place at approximately 265 knots. Low speed disagreement takes place whenever the right DLE is extended.

Question 15

CABIN

Answer 15

The cabin altitude is higher than 10,000 ft or the cabin differential pressure is higher than 8.7 psi.

Question 16

FUEL 1, FUEL 2

Answer 16

Fuel pressure has dropped below 5.5 psi

Question 17

YAW FAIL

Answer 17

The red yaw damper fail light illuminates when the yaw damper has failed with the engagement button in. Automatic failure occurs when yaw damper deflection
exceeds 1 1/2° for more than 10 seconds.

Question 18

GUST

Answer 18

This light illuminates if the No. 1 hydraulic pressure drops in the rudder system and
the gust damper valve is closed (damping position).

Question 19

BAG or BAG CMPT above pilot instrument panel

Answer 19

This illuminates if smoke and/or fire has been detected in the baggage area.

Question 20

PITOT 1, PITOT 2

Answer 20

The pilot or copilot probe heating system is off or has failed. On F model aircraft, each light also monitors static port heat.

Question 21

NRV

Answer 21

This illuminates if the nonreturn valve is open with the APU switches turned off.