Oral Study Guide Overhead Panel Flashcards

1
Q

Where does the DC service switch get power from?

A

AC battery direct bus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why do we not leave the airplane in the service configuration using the DC service switch?

A

Drains APU battery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

With the battery master (DC power) on (no AC power established) which screens come online? What is the limitation?

A

5 mins because fans are AC powered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What does the AVAIL illumination on the AC switchlight indicate?

A

External power available: correct voltage, frequency, phase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What does the FAULT illumination on the IDG switchlight indicate?

A

High oil temp, low oil pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What does the DISC illumination on the IDG switchlight indicate?

A

IDG is disconnected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How can an IDG be disconnected?

A

Manually: press DISC switchlight
Automatically: if solenoid is melted or shaft is sheared, no indication on EICAS but FAULT would be illuminated on switchlight

How well did you know this?
1
Not at all
2
3
4
5
Perfectly