Power Plant Flashcards
How many FADECs does each engine have?
2 single channel FADECs
Where are the engine indications and alerts displayed?
EICAS engine indication and crew alert system
Which position of the ignition selector knob allows FADEC to control ignition depending on engine requirements ?
auto
Which thrust position provides max thrust rating available?
MAX
Which thrust lever setting sets thrust appropriate for TO or GA?
TO/GA
Pressing the EVENT MARKER button does what?
FADEC records two min prior and one min after button press.
When is the OAT on the EICAS displayed?
Up until TO run
When should TRs be stowed?
40 kts
When are TRs available?
Weight on wheels and wheel speed
Where is the IGNITION status displayed?
EICAS
What does green IGN mean?
ignitions are commanded on
Cyan IGN OFF
ignitions are commanded off
Where can oil level be accurately read?
sight glass or via Remote Oil Level Sensor
When can the oil be accurately read?
5-30 min after shutdown
Can the engine oil quantity be read while running or in flight?
no
Max engine oil consumption per hour
.04 quarts per hour (1 quart per 25 hours)
Purpose of the Automatic Takeoff Thrust Control System
To provide auto thrust increase if ATTCS is previously armed and one of the following occurs in TO/GA
N2 difference between engines greater than 15%
Loss of engine communication
Windshear detected
Thrust lever is moved to Max
When is ATTCS available?
WAI is ON
ICE PROT knob is in ALL
Which TO ratings can the crew select
full rated mode
Engine power settings that may be selected
TO/GA, max continuous CON, CLB, CRZ, and max reverse
Starting and motoring limits
5 min accumulated or 3 cycles, whichever is first, then 15 min cool down required for each additional motoring
Starting duty cycle limits
Max time of 80 sec
Can engine be started with ITT of 450c or higher?
yes, dry motor 30 sec prior to start
When can HP thermal bow occur?
when an engine start is initiated 15-180 minutes after shutdown.
