Powerplants

Question 1

What is EIU?

Answer 1

Engine interface unit. The Fadec interfaces with aircraft via EIU. EIUs receive data from other aircraft systems (eg lgciu, fms, adirs) and informs fadec of engine selections

Question 2

Min Eng oil quantities?

Answer 2

CEO- 9.5 + 0.5 qt/hr

NEO- 8.9 + 0.45 qt/hr
Or 10.6
Whichever higher

Should cover total flightier (from all fuel loaded) + 15 mins

Can reduce by 3 if engine shut down for more than 60mins

Question 3

Min oil temp for takeoff?

Answer 3

CEO: -10
NEO: 19 (you get an ecam if you press takeoff config before this temp)

Question 4

Accessory gearbox driven by which shaft?

Powers what?

Answer 4

HP N2 shaft
Powers:
Eng oil pump
Eng fuel pump
Eng hyd pumps
Eng driven generators
Pneumatic starter for engine 
FADEC alternator

Question 5

Oil temp limits
For advisory?
For shutdown?

Answer 5

140 degs

140 degs fof 15 mins or exceeds 155 deg at any point

Question 6

Oil pressure limits
Advisory?
Shutdown?

Answer 6

CEO

13-16psi
<13psi (only if you have ecam, otherwise continue Eng normally and assume transducer failure)

NEO
will either pulse green or red

Question 7

What values of vibration should you refer to WRH high vibration checklist?

Answer 7

For ceo

N1>=6
N2>=4.3

For neo, you will get an ecam

Question 8

Oil temp advisory levels?

Answer 8

NEO < 1.35
CEO < 3

Could be due to oil gulping at high thrust settings and mY increase after

Question 9

Fadec fault symptoms?

Answer 9

Primary indications “xx”
Engines continue operating
FU shows amber strike > 2 min
ATHR fails