Engine

Question 1

Which engines are installed on the airplane?

Answer 1

General Electric (GE) Passport 20-19BB1A

Question 2

What is maximum ITT for ground/air start? (AFM Limitations)

Answer 2

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.

Question 3

What are the engine takeoff thrust limitations? (AFM Limitations)

Answer 3

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.

Question 4

How does the pilot know when engine limitations are exceeded?

Answer 4

The numbers turn RED

Question 5

At what RPM should starter engagement not be attempted? (AFM Limitations)

Answer 5

56% N2
Note: because of the starter clutch design, the starter can’t engage above this rpm.

Question 6

What are the starter duty cycles? (AFM Limitations)

Answer 6

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

Question 7

What is the minimum oil temperature for engine start? (AFM Limitations)

Answer 7

• 40°C
  Note: when the number turns GREEN

Question 8

What is the minimum oil temperature before selecting TO Power? (AFM Limitations)

Answer 8

+43ºC
Note: when the number turns GREEN.

Question 9

What is the maximum engine oil temperature permissible for continuous operation? (AFM
Limitations)

Answer 9

+ 160°C
Note: when the number turns RED.

Question 10

How much thrust do the engines supply at sea level? (FCOM2, Airplane General)

Answer 10

18,920lb at sea level up to 30⁰C (ISA+15⁰C)
Note: the thrust is flat rated to ISA +15⁰C, this value is only valid at temperatures at or below
ISA+15⁰C

Question 11

How is the FADEC powered once the engine is running?

Answer 11

Permanent Magnet Alternator (PMA) serves as the primary electrical power source
Aircraft power is available during starting and if the PMA fails

Question 12

What powers the FADEC when the primary source is not available?

Answer 12

Aircraft electrical system.

Question 13

What is maximum oil consumption of each engine? (AFM Limitations)

Answer 13

0.31 US quarts/hour (0.29 liters/hour)

Question 14

When and how is engine oil replenishment allowed? (AFM Limitations, FCOM1 & FCOM2)

Answer 14

On the ground with engines off
Between 15 and 60 minutes after engine shutdown
ORS reservoir OIL QTY should be GREEN before servicing
Via the OIL REPLENISH Tab on the SERVICE Synoptic

Question 15

When can the engine oil levels be accurately checked?

Answer 15

Between 15 and 60 minutes after shutdown
REPLENISH soft key is available only within 15 to 60 minutes after shutdown

Question 16

How is oil quantity checked?

Answer 16

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

Question 17

Where is the oil replenishing tank located?

Answer 17

Aft equipment bay

Question 18

What is the capacity of the oil replenishment reservoir?

Answer 18

6.0 U.S. quarts (5.7 liters)

Question 19

How is engine oil cooled?

Answer 19

2 Fuel/Oil and 2 Air/Oil heat exchangers

Question 20

What is the usable capacity of each engine oil tank?

Answer 20

11.6 U.S. quarts (10.9 liters)

Question 21

Which fuel shutoff valve closes after selecting the ENGINE RUN switch to OFF?

Answer 21

HPSOV within the fuel metering unit

Question 22

When is Approach idle commanded by the FADEC?

Answer 22

In flight,
Gear down and locked or
SLAT/FLAP 2 (flaps are set at or above 5º)
Steep Approach Mode not selected

Question 23

What are the two auto start air envelopes and associated airspeeds?

Answer 23

ATS ENVELOPE, CAS Message (≤ 250kt)
WINDWMILL ENVELOPE, CAS Message (> 250kt and N2 > 7.5%)

Question 24

What is the engine “Quick Relight” function?

Answer 24

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

Question 25

When does the “ENG FLAMEOUT” message appear?

Answer 25

When the N2 reduces abnormally and an automatic relight has failed

Question 26

What is the maximum altitude for an airborne engine start?

Answer 26

30,000ft

Question 27

What is the maximum altitude in flight for an APU-assisted engine start?

Answer 27

23,000ft