Powerplant

Question 1

Question: What is the minimum oil temperature for ground start?

Answer 1

Answer: -35° C

Question 2

Question: These engines are FADEC controlled. Does the FADEC require electrical power? If so, where does it normally get this power?

Answer 2

Answer: Yes. It receives electrical power from ESS DC until the PMA produces more power (no later than 35%HP).

Question 3

Question: Will FADEC protect the engine from a Hot Start:

A. On the ground
B. Inflight

Answer 3

Answer: Yes and No, see AFM Autostart Abort Amber CAS

Inflight Answer: No

Question 4

Question: What is the MAX Crosswind and Tailwind Component for Engine Start?

Answer 4

Answer: 30 kts Crosswind 20 kts Tailwind

Question 5

Question: By what speed must Reverse Thrust be at IDLE?

Answer 5

Answer: 60 kts

Question 6

Question: What is the requirement if Reverse thrust is used to bring the aircraft to a stop in an emergency?

Answer 6

Answer: Record and report for Maintenance action.

Question 7

Question: What is the max TGT for inflight engine start?

Answer 7

Answer: 850°C

Question 8

Question: What is the MAX TGT for ground engine start?

Answer 8

Answer: 800°C

Question 9

Question: What are the limitations associated with the Engine Start Duty Cycles?

Answer 9

Answer: 2 Start Cycle MAX 3 minutes per Start Cycle

OR

3 Start Cycles MAX 2 Minutes per Start Cycle

Delay 15 seconds between EACH start cycle After a total of 6 minutes of start duty time delay at least 15 minutes before another attempt.

Question 10

Question: If the FUEL CONTROL switch was accidentally placed in the OFF position then back to ON, what is the name of the mode the EECs would enter and is there a time limit associated with this?

Answer 10

Answer: 1) QUICK RELIGHT 2) Yes, 15 Seconds

Question 11

Question: Where would you be able to Inhibit the Auto-Throttles auto engage mode and what auto throttle function are you inhibiting?

Answer 11

Answer: TSC/Systems/ Auto Throttle. Inhibiting the Vertical Mode Change.

Question 12

Question: What is rotor bow?

Answer 12

Answer: When the LP and HP shafts warp or bow due to uneven temperatures after shutdown.

Question 13

As you go through the engine start. You notice this amber CAS message

R Engine Alt Control

Question: Can you dispatch with this CAS message displayed?

Answer 13

No

Question 14

Question: At what fuel tank temperature does the heated fuel return system cease to operate?

Answer 14

Answer: Approximately +10°C

Question 15

Question: When does the FADEC change channels during a ground start?

Answer 15

Answer: The channel changes when FUEL CONTROL switch is positioned from RUN to OFF.

Question 16

Question: When do Engines enter APPROACH IDLE?

Answer 16

Answer: Gear down and locked or flaps >39 degrees

Question 17

Question: What are SOME of the limitations associated with operating engines in the Engine Alternate Control mode?

Answer 17

Answer: You lose FADEC protection, you lose auto throttles, and you can’t dispatch in alternate control.

Question 18

Question: At what speed do the auto throttles enter the “HOLD” mode?

Answer 18

Answer: 60 Knots KCAS

Question 19

Question: Under what condition would it be mandatory to use a Windmill Start?

Answer 19

Answer: Wing Anti Ice is in use

Question 20

Question: “REV” appears inside the LP gauges during thrust reverse operations. Describe the meaning of the various color indications.

Answer 20

Answer: 1. WHITE = Transit

2. GREEN = Full Deployed
3. AMBER = Uncommanded while on the Ground.
4. RED = Uncommanded while in Flight.

Question 21

Question: What happens to the engine during Uncommanded Thrust Reverser deployment?

Answer 21

Answer: FADEC commands engine to idle.