Systems Limitations Flashcards
Max engine temp during start
815C
Min battery voltage
22.5 V
Min oil temp for engine start
-40C
Min oil pressure for engine start
25 psi
Starter cranking limits on the ground
1&2 - 90 sec on, 10 sec off
3-5 - 90 sec on, 5 min off
Starter cranking limits in flight
1&2 - 120 sec on, 10 sec off
3-5 - 120 sec on, 5 min off
On the ground, what is the max cumulative starter run time per start attempt
90 sec
In flight, what is the max cumulative starter run time per start attempt
120 sec
Dry motoring cycle limits
1 - 90 sec on, 5 min off
2-5 - 30 sec on, 5 min off
When starting engine with tail wind, when must start be manually aborted
If no positive increase of N1 prior to starter cutout (50% N2)
When does starter cut out
50% N2
Can you takeoff with Automatic Takeoff Thrust Control System (ATTCS) OFF
No
How long must you wait after EICAS is energized prior to starting APU
30 sec
How long can you leave the aircraft unattended with APU running
5 min (sw)
Can you use APU and High Pressure air cart at the same time
Nope
Min hydraulic reservoir temp for engine start
-18C
What must brake temp indication be for takeoff
In green range
After selecting reverse thrust, when can you move thrust levers into forward thrust range
When REV icon on EICAS is shown in amber or green
Min engagement height for autopilot
400 ft
Min use height for autopilot
50 ft
Min use height for autopilot on non-precision approach
MDA
At what speed do TAS, TAT, and SAT info become valid
Above 60kts
When is standby mag compass indication not valid
When transmitting on VHF 1
Which minimums must be used for all CAT I approaches
Barometric altimeter minimums
