Engine Flashcards
Which engines are installed on the airplane?
General Electric (GE) Passport 20-19BB1A
What is maximum ITT for ground/air start? (AFM Limitations)
750ºC (Ground)
875ºC (Air), 975ºC (Quick Windmill Relight)
Note: The numbers turn red. On the ground the start is automatically aborted. In-flight, the starter will continue the start attempt until the crew intervenes.
What are the engine takeoff thrust limitations? (AFM Limitations)
TO thrust limited to 5 minutes with all engines operating
TO Thrust limited to 10 minutes with one engine inoperative
Note: This is automatically adjusted by the FADEC, no pilot action is required.
How does the pilot know when engine limitations are exceeded?
The numbers turn RED
At what RPM should starter engagement not be attempted? (AFM Limitations)
56% N2
Note: Because of the starter clutch design, the starter can’t engage above this RPM.
What are the starter duty cycles? (AFM Limitations)
Start attempts 1 and 2: 5 minutes ON, 5 minutes cool down between starts
Start attempts 3 through 10: 5 minutes ON, 15 minutes cool down between starts
What is the minimum oil temperature for engine start? (AFM Limitations)
– 40°C
Note: when the number turns GREEN.
What is the minimum oil temperature before selecting TO Power? (AFM Limitations)
+43ºC
Note: when the number turns GREEN.
What is the maximum engine oil temperature permissible for continuous operation? (AFM Limitations)
+ 160°C
Note: when the number turns RED.
How much thrust do the engines supply at sea level? (FCOM2, Airplane General)
18,920lb at sea level up to 30⁰C (ISA+15
Note: the thrust is flat rated to ISA +15⁰C, this value is only valid at temperatures at or below
How is the FADEC powered once the engine is running?
Permanent Magnet Alternator (PMA) serves as the primary electrical power source
Aircraft power is available during starting and if the PMA fails
What powers the FADEC when the primary source is not available?
Aircraft electrical system
What is maximum oil consumption of each engine? (AFM Limitations)
0.31 US quarts/hour (0.29 liters/hour)
When and how is engine oil replenishment allowed? (AFM Limitations, FCOM1 & FCOM2)
On the ground with engines off
Between 15 and 60 minutes after engine shutdown
ORS reservoir OIL QTY should be GREEN before servicing
Prohibited when OAT is -12°C or colder
Via the OIL REPLENISH Tab on the SERVICE Synoptic
When can the engine oil levels be accurately checked?
Between 15 and 60 minutes after shutdown
REPLENISH soft key is available only within 15 to 60 minutes after shutdown
How is oil quantity checked?
Oil quantity is displayed on the OIL REPLENISH Tab in the SERVICE Synoptic
An oil level sight gauge on the side of the oil reservoir
Where is the oil replenishing tank located?
Aft equipment bay
What is the capacity of the oil replenishment reservoir?
6.0 U.S. quarts (5.7 liters)
How is engine oil cooled?
2 Fuel/Oil and 2 Air/Oil heat exchangers
What is the usable capacity of each engine oil tank?
11.6 U.S. quarts (10.9 liters)
Which fuel shutoff valve closes after selecting the ENGINE RUN switch to OFF?
HPSOV within the fuel metering unit
When is Approach idle commanded by the FADEC?
In flight,
Gear down and locked or
SLAT/FLAP 2 (flaps are set at or above 5º)
Steep Approach Mode not selected
What are the two auto start air envelopes and associated airspeeds?
ATS ENVELOPE, CAS Message (<= 250kt)
WINDWMILL ENVELOPE, CAS Message (> 250kt and N2 > 7.5%)
What is the engine “Quick Relight” function?
If the ENGINE RUN switch is selected OFF, then back to ON, the FADEC will recover the existing power setting
Fuel schedules and ITT limits are adapted for each quick relight scenario
