Engines and APU

Question 1

When would you use “rich” when starting a RR engine?

Answer 1

When ITT reads 0°

Question 2

On an RR Engine is N2 protected?

Answer 2

NO, it just spins as a result of N1 and N3, it is indirectly protected though them

Question 3

RR Engine EEC Controls

• EPR-
• N1-

Answer 3

EPR- “Supervisory”

N1- “Limiting”

Question 4

How are the RR engine EECs powered?

Answer 4

Dual dedicated generators which are really one generator with dual channels

Question 5

RR Engines- If you lose both channels that power the EECs how do you control the engines?

Answer 5

You revert to hydro-mechanical N3 fuel control

Question 6

How are the EECs powered on the P&W Engines?

Answer 6

Dedicated PMAs

Question 7

Is there a mechanical backup to FADEC on the P&W Engine?

Answer 7

No

Question 8

If both FADEC Channels fail what will the engine do?

Answer 8

Go to min flow FOR THAT ALTITUDE

**If you descend, the engine my shut down b/c of fuel flow

Question 9

Which is the primary FADEC channel on the 763?

A or B

Answer 9

Neither, it swaps on each start

Question 10

What powers the EECs on the GE Engines?

Answer 10

Permanent Magnet Generator

Question 11

IF both FADEC Channels fail on the GE Engine what happens?

Answer 11

A controlled engine shut down

Question 12

How do we know when engine indicators are coming from the Thrust Management Computer?

Answer 12

It will be displayed in Green

Question 13

EECs vs ELCs

Which is a bigger deal and what do they do

Answer 13

EEC is a bigger deal- controls and monitors more things

ELC is a protection and a limit

Question 14

RR Engine

EEC what does it control and is it protection or limit?

Answer 14

EPR and is a PROTECTION -is supervisory

Question 15

RR Engine

ELC what does it control and is it protection or limit?

Answer 15

N1 and is over speed LIMIT- plays a limiter role

Question 16

RR Engine

N3 what does it control/ protection or limit?

Answer 16

Is fuel control. if you lose both EECs and ELCs you still have mechanical linkage to N3 fuel protection

Question 17

Do P&W Engines have ELCs?

Answer 17

No ELCs at all

Question 18

What Batteries do we need to start the APU?

Answer 18

Both- APU battery starts the APU, main battery powers fire protection

Question 19

When starting the APU, why do you get Fault, Run, Run?

Answer 19

Fault- Fuel valve opening

Run, Run- Self test and starter engaging

Question 20

When are EPR Gauge carrots Magenta?

Answer 20

When in VNAV mode

Question 21

When is “Go Around” automatically bugged on the EPR gauge?

Answer 21

Glideslope capture or flaps set to landing position

Question 22

What are the engine warm up times?

Answer 22

• Three minutes if shut down for less than 1.5 hours
• Five minutes if shut down for more than 1.5 hours
• GE engine-no warm up

Question 23

If initial level off is 3000’ or below what could be used for initial climb?

Answer 23

FLCH (speed)

FM 3.90.60-low altitude level off

Question 24

What winds does Recommended Cruise Alt (ON FMS Cruise page) use?

Answer 24

Real time winds so if winds are more than 30° or 30 knots from planned use this instead of flight plan winds and altitudes

Question 25

RR Engines-What happens if you use rich for start but forget to switch to run?

Answer 25

It will automatically go to the run setting at weight off wheels

Question 26

Run ups when using Engine Anti-Ice on the ground

• First should be__but not longer than__after start
• Must repeat every__

Answer 26

• First-ASAP, not more than 15 minutes after start

- Repeat every 30 minutes

Question 27

What type of Engine is on the 757?

Answer 27

Rolls Royce RB211

Question 28

How much thrust do the Rolls Royce engines put out?

Answer 28

42,700 lbs of takeoff thrust each

Question 29

What type of engine is on the 767-300?

Answer 29

PW4060

Question 30

How much thrust do the P&W engines put out?

Answer 30

60,000 lbs at sea level and flat rates to 92° F