EEC

Question 1

What does the EEC use as the controlling parameter (GE)?

Answer 1

N1

Question 2

What protection features are provided in the EEC Normal mode?

Answer 2

• Thrust limiting
• Maintains constant thrust, compensating for dynamic temperature and pressure.
• Compensates for bleed requirements
• Overspeed protection

Question 3

What action should be taken prior to manual selection of EEC alternate mode?

Answer 3

Decrease thrust lever position. Thrust increases when alternate mode is selected manually. Thrust does not change when the EEC transfers control from normal mode to alternate mode.

Question 4

What occurs in the autothrottle system when any EEC control is changed to alternate mode?

Answer 4

• The autothrottles disconnect, but can be reconnected when all EECs have been changed to alternate mode.

Question 5

What EEC normal mode protection feature is not available in EEC Alternate mode?

Answer 5

• Thrust limiting at maximum N1 (maximum thrust can be achieved prior to thrust lever position at full forward)

Question 6

What feature of the EEC provides overspeed protection?

Answer 6

Fuel metering unit

Question 7

When does the EEC select approach idle?

Answer 7

• Flaps in a landing position
• Continuous ignition ON
• During thrust reverser operation

Question 8

How long is approach idle maintained after touchdown?

Answer 8

• 5 seconds