Power Plant

Question 1

What does a FAULT light on the engine start P/B indicate?

Answer 1

Starter remains engaged with NH >45%; or
GCU failure during start; or
Starter failure; or
ENG 2 only - ENG START selector on start position and PROP BRK ON and gust lock not engaged.

Question 2

During takeoff, at what point will the idle gate prevent PL movement below FI?

Answer 2

When both main landing gear absorbers are released.

Question 3

During landing, when will the idle gate retract to allow PL movement to GI?

Answer 3

As soon as one main landing gear absorber is compressed.

Question 4

What accessories are fitted to the reduction gearbox?

Answer 4

ACW generator
Propeller valve module
Propeller pump and overspeed governor
Auxiliary feathering pump
Propeller brake (RH engine)

Question 5

What does an amber SGL CH message next to the NP gauge indicate?

Answer 5

Failure of a single channel of the PEC. The back up channel will take over automatically.

Question 6

What is the ITT engine start limit when starting in hotel mode?

Answer 6

715C

Question 7

What conditions must be met to get the green ready light for engagement or disengagement of the prop brake?

Answer 7

Aircraft on ground
Gust lock engaged
CL on FTH or FUEL S/O
Blue hyd press available on prop brake input >2100psi
Fire handle not pulled

Question 8

What are the arming conditions for ATPCS for takeoff?

Answer 8

Aircraft on ground
PWR MGT TO
ATPCS P/B ON
Both PL >49deg
Both TQ >46%

Question 9

What are the ATPCS arming conditions for the go around case?

Answer 9

Aircraft in flight
PWR MGT TO
ATPCS P/B ON
Both PL >49deg
Both TQ >46%

Question 10

What is the trigger for activation of ATPCS?

Answer 10

One TQ <18%

Question 11

What happens when ATPCS is triggered for the takeoff case?

Answer 11

Uptrim is triggered and the bleed valve is shutoff on the remaining engine; and
After 2.15 seconds auto-feather is activated on the affected engine.

Question 12

What happens when ATPCS is triggered when airborne?

Answer 12

After 2.15 seconds auto-feather is activated on the affected engine.

Question 13

Why is there a 2.15 second delay for auto-feather when ATPCS is triggered?

Answer 13

In the rejected takeoff case retarding the PL within 2.15 seconds will disarm ATPCS in order to benefit from some reversing action (drag) on the failed engine.