Safety & Power On Checklist

Question 1

Maintenance Status—Checked

What are you checking for?

Answer 1

1. Verify all maintenance items are appropriate and all MEL/CDLs considered cleared.
2. Circuit breakers are either in (closed) or out (collared) as appropriate.
3. Check for a valid Air Worthiness and 2-Day check.
4. Verify all applicable safety items are on board.

Question 2

What if maintenance is on board the aircraft?

Answer 2

Do not operate the aircraft controls and consult the mechanic.

Question 3

GPU…OUT

What happens when the GPU pushbutton is out?

Answer 3

Isolates the AC GPU from the AC BUS TIE.

Question 4

APU GEN…IN

What happens when the APU pushbutton is in?

Answer 4

1. Connects APU generator to the AC BUS TIE provided the power is within limits.
2. Allows automatic operation of the electrical system.

Question 5

BATT 1 & 2…OFF

What happens when the battery switches are off?

Answer 5

Batteries 1 & 2 supply power to their respective HOT BATT BUSES

Question 6

Name six items on the HOT BATT BUSES

Answer 6

1. Engine fire extinguishers
2. Fuel shutoff valves
3. Hydraulic shutoff valves
4. Engine oil level systems
5. Refueling panel
6. Water and waste systems

Question 7

FUEL DC PUMP & AC PUMPS 1 & 2… AUTO

What happens when these switches are in AUTO?

Answer 7

Automatically operates the pumps according to the systems logic

Question 8

HYDRAULIC SYS 1,2, & 3B ELEC PUMPS … AUTO

What happens when the switch is in AUTO?

Answer 8

Allows the electrical pumps to operate automatically according to hydraulic system logic

Question 9

BATT 1 …ON

What is the minimum voltage?

Answer 9

22.5V

Question 10

What if the batteries are not at 22.5V

Answer 10

GPU can power the airplane. Chart in Chapter 6 of the SOP should be referenced to determine how long is necessary to recharge the batteries.

Question 11

BATT 2 … AUTO

What is the AUTO function of BATT 2?

Answer 11

Allow the #2 battery to power APU start bus during APU start

Question 12

Is BATT 1 involved in the APU start?

Answer 12

Yes, BATT 1 powers the APU FADEC

Question 13

What indications are you looking for when you perform the Fire Panel Test?

Answer 13

• That there is no “FAIL “fire detection/extinguishing system messages on the EICAS.
• The APU fire extinguishing button and the upper half of the APU emergency stop button illuminates.
• The FIRE icons are displayed on the ITT gauges.
• The fire bell and master warning sound.
• The fire handles illuminate.
• The cargo fire buttons illuminate.
• 5 Red messages on the EICAS.

Question 14

What does the AVAIL light on the GPU switch indicate

Answer 14

The AC GPU is connected and the voltage/amperage/frequency are within limits

Question 15

What is the APU starter duty limitation?

Answer 15

1st and 2nd attempt 60 seconds ON;60 seconds OFF.

3rd cycle 60 seconds ON; 5 minutes OFF.

Question 16

What is the MAX altitude for APU start?

Answer 16

30,000 ft

Question 17

What is the max altitude for operation of the APU electrical

Answer 17

33,000 ft

Question 18

What is the max altitude for operation of the APU bleed?

Answer 18

15,000 ft

Question 19

What is the max altitude for an APU assisted engine start?

Answer 19

21,000 ft

Question 20

How is the APU monitored and controlled?

Answer 20

FADEC

Question 21

What happens when you rotate the APU master switch to on?

Answer 21

Powers the FADEC and opens the APU fuel shutoff valve

Question 22

What happens when you rotate the APU selector knob to off?

Answer 22

Initiates the normal shutdown sequence, a 1 minute cool down period begins, the APU pneumatic is removed immediately and electrical power is removed after the 1-minute cool down period.

Question 23

What happens when the APU EMERGENCY STOP button is pushed?

Answer 23

The APU fuel shutoff valve closes and the APU will shut down with no cooling period.

Question 24

What emergency equipment do you check for in the flight deck?

Answer 24

• 1 PBE
• 1 Halon fire extinguisher
• 1 Crash axe
• 2 flash lights
• 2 escape ropes
• 3 life vests