EEC Flashcards
What does the EEC use as the controlling parameter (GE)?
N1
What protection features are provided in the EEC Normal mode?
- Thrust limiting
- Maintains constant thrust, compensating for dynamic temperature and pressure.
- Compensates for bleed requirements
- Overspeed protection
What action should be taken prior to manual selection of EEC alternate mode?
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.
What occurs in the autothrottle system when any EEC control is changed to alternate mode?
• The autothrottles disconnect, but can be reconnected when all EECs have been changed to alternate mode.
What EEC normal mode protection feature is not available in EEC Alternate mode?
• Thrust limiting at maximum N1 (maximum thrust can be achieved prior to thrust lever position at full forward)
What feature of the EEC provides overspeed protection?
Fuel metering unit
When does the EEC select approach idle?
- Flaps in a landing position
- Continuous ignition ON
- During thrust reverser operation
How long is approach idle maintained after touchdown?
• 5 seconds