Powerplant Flashcards
Engine Type:
Thrust Rating:
Bypass Ratio:
Honeywell TFE731-40R-200G
4,250 lbs of thrust at SL and 76 degrees F
1.8 to 1
When is APR triggered:
How much more power can I anticipate:
Is there any penalty for using APR:
With an N2 differential of 15%
Changes derate temperature from 76 to 85 degrees F which could potentially give you 150 to 200 lbs of thrust
When activated above 80% N2, it counts as 4 engine cycles towards TBO
How are the thrust levers set for takeoff:
Will DEEC also monitor (control) ITT:
FW
Yes
Why are throttle positions called “FLATS”:
No detents
What does it indicate when the FUEL MAN MODE annunciator illuminates:
Flashes:
DEEC inoperative or in MANUAL mode
If it flashing slow memory is almost full
Flashing fast indicates potential issues with DEEC
What’s the first indication of an impending Hot Start:
Higher the normal fuel flow
When would you disconnect the Starter on an aborted start attempt:
450 deg ITT or 15 sec
When is APR armed:
When would you MANUALLY select APR ON:
At LINE UP on every takeoff
Any time you need it, but specifically on CFIT and WINDSHEAR maneuvers
What is the purpose of the ASR:
During the first engine start the AUX START RELAY (ASR) opens to isolate the opposite side buses to prevent power surges and reduce the load during start
When will the OIL PRESS LO light illuminate:
< 50 psi
At what voltage will the DEEC’s drop off and revert to manual mode, FUEL MAN MODE
Below 13 to 15 volts DC
Where do the DEEC’s receive power from:
Respective MAIN DC bus
When do you check the engine oil level:
When should oil be added:
Within 15 min after shutdown
Anything in access of 1 qt low (it lives at 1 qt low)
How long does it take for the T/R to DEPLOY:
STOW:
1 sec
2 sec
When should you never exceed IDLE thrust with a T/R DEPLOYED:
Below 70 KIAS or with a T/R UNSAFE light illuminated
