Engines Flashcards
Before Each flight, the engine oil is checked and must be indicating _______to fly.
Green!
Not amber
What is the minimum oil pressure after engine start?
Green
25 PSI
What conditions require max thrust?
Single engine operations
Wind Shear escape maneuver
Stall recovery
What is the first start duty cycle limit?
90 seconds ON
10 seconds OFF
How do the thrust levers command the FADEC?
Digitally
What is the indication if the the thrust reverser are partially open?
Amber REV icon
Green REV icon when full open
When should you use thrust reversers?
Contaminated runway
Is ATTCS required for takeoff?
Yes
What is the minimum bleed air pressure for cross bleed start?
40 PSI
What is the primary indication for setting engine thrust?
N1
How do you manually activate RSV?
ATTCS must be engaged
Thrust levers moved to max
When will FADEC manually abort an engine start?
Hot start
Hung start
No light
What are the engine indications during engine start?
N2 Oil Ignition @ 7% Fuel ITT N1 @ 35% Ignition off before 50% Stabilization (ITT limit rescales)
How far off can the EICAS target EICAS be from the ACARS target?
-0
+0.5
When should you manually abort a start?
No positive oil pressure within 10 seconds
No positive N1 before 50% N2
No ITT within 30 seconds
ITT exceeds 815 C
Oil pressurized below normal range
N1 or N2 fails to accelerate to idle speed
Electrical or pneumatic interruption
What should you do if FADEC aborts a start?
Memory item
What stage does low pressure come from?
6th
What stage does high pressure bleed air come from?
10th
When will ATTCS AUTO command RSV?
When ATTCS is engaged and thrust levers are set to TOGA and: There is a 15% difference in engines One engine fails during takeoff One engine fails during go-around Windshear is detected
When will GA (ATTCS) appear on the EICAS?
Flaps are greater than 0
TOGA is pressed from CRZ / CON / CLB
Why is the memory item still required when FADEC manually aborts the start?
The starter control valve must be manually closed
After starting an engine when must you reduce the flex takeoff temperature or update ACARS data to reflect OAT value?
If N1 value exceeds +0.5
How long does the engine need to cool down prior to shutdown?
2 minutes
Does taxi time count to cool down time for the engine?
Yes
