Electrical

Question 1

What type of an electrical system is the airplane equipped with?

Answer 1

A 28 V DC electrical power generation and distribution system. AOM 9-05-01

Question 2

If both generators are available, do they operate in a split bus mode or parallel mode?

Answer 2

Split bus mode. AOM 9-05-01

Question 3

What does the white AVAIL light indicate?

Answer 3

That the GPU button is pushed out, a GPU is connected and the voltage is set between 25V DC and 30 V DC.
AOM 9-05-30

Question 4

Which light will illuminate when the GPU button is pushed in and providing power to the airplane?

Answer 4

If the GPU button is pushed in and providing power to the airplane the white AVAIL light will go off and the
green IN USE light will illuminate. AOM 9-05-30

Question 5

What color does the battery voltage indication show if the battery is discharging?

Answer 5

Amber. AOM 9-05-30

Question 6

What will the indication be on the electrical synoptic page if the GPU is connected but is not providing power
to the airplane?

Answer 6

A white GPU. AOM 9-05-30

Question 7

Will the Ram Air Turbine (RAT) be continuously displayed on the electrical synoptic page? If not, when will it
be displayed?

Answer 7

No, only when it is deployed and providing power to the airplane. AOM 9-05-30

Question 8

How can the pilot manually command the RAT to deploy?

Answer 8

The right seat pilot can pull the red manual deploy control. AOM 9-05-30

Question 9

What buses is the APU capable of supplying power to on the ground if the APU is the only source of electrical
power?

Answer 9

All electrical loads including the shed buses and charging the batteries. AOM 9-05-40

Question 10

What buses are the APU capable of supplying power to inflight?

Answer 10

All electrical loads (except for the shed buses) and charging the batteries. AOM 9-05-40

Question 11

What buses does the RAT generator power?

Answer 11

EMER BUS 1, 2 and 3 and charging the batteries. AOM 9-05-40

Question 12

When will the RAT automatically deploy?

Answer 12

During an electrical emergency. AOM 9-05-40

Question 13

In flight, when will an electrical emergency occur?

Answer 13

When the two main generators and the APU generator are unavailable. AOM 9-05-40

Question 14

How many main batteries are there?

Answer 14

Two. AOM 9-05-40

Question 15

What is the rating of the main batteries?

Answer 15

24 V DC 40 Ah NiCad batteries. AOM 9-05-40

Question 16

If the batteries are the only source of electrical power inflight, what buses will be powered and what CAS
message will be displayed?

Answer 16

The EMER BUSES; the red BATT DISCHARGING CAS message. AOM 9-05-40

Question 17

In an electrical emergency, what buses are powered/isolated from the aircraft electrical system?

Answer 17

EMER BUS 1, EMER BUS 2 and EMER BUS 3. AOM 9-05-55

Question 18

In an electrical emergency, what sources of power can provide electrical power to the EMER BUS 1, EMER
BUS 2 and EMER BUS 3?

Answer 18

BATT 1, BATT 2 or the RAT. AOM 9-05-55

Question 19

What buses will be energized when the airplane is de-energized and there is no electrical power source
available?

Answer 19

HOT BATT BUS 1 and HOT BATT BUS 2. AOM 9-05-55

Question 20

For ground servicing, when a GPU is connected and providing power to the airplane, with the GPU button
pushed out and the BATT 1 and BATT 2 switches in the OFF position, which bus is energized by the GPU?

Answer 20

SHED BUS 1. AOM 9-05-55

Question 21

Which battery is connected to the APU START BUS to assist with an APU start?

Answer 21

BATT 2. AOM 9-05-55

Question 22

How many generators need to be operating in order for the SHED BUSES to be energized in flight?

Answer 22

Two. AOM 9-05-55