F108 Conditions Flashcards
N2 for normal idle
54% - 62%
Hold Gen only switch
60%
Takeoff Rated Thrust (TRT) minimum Aircraft fuel load
60,000 lbs
Delay upgrading APU for?
60 seconds
Advance throttles and hold for 15 seconds
70% N1
Starting Duty Cycle
90-60-90-60-90-10
APU in 11 seconds
100%
Max N1 (Fan)
102%
Max N2 (Core)
105%
Max Continuous oil temp
160 C
10 minute oil temp @ idle
161 C - 175 C
Normal light off
2 - 3 seconds
Minimum left and right hydraulics quantity
2 Gallons
Throttle transition to higher setting
2 second minimum
Minimum personnel to run engines
3
Time for start to complete cut out sequence
3 - 9 seconds
Left hydraulics quantity
3.75 - 4.25
Chocks required for idle run
4
Normal oil pressure at idle
13 - 35 PSI
Minimum oil pressure, light goes out
13 PSI
Oil Pressure light goes out
13 PSI
Ground Idle minimum fuel load
15,000 lbs
Hold at 70% to shed remainder of ice before advancing to high settings
15 seconds
N1 normal idle
16% - 22%
APU battery volts for test (Actual is 18 VDC)
21 VDC
Idle danger area
25-5-180
Advance throttle to start
25% N2
Preferred heat time to MEC
30 minutes
Ignition when engine is cold soaked
30 seconds
32F/0C & 50% humidity or higher..run anti ice on for..
5 minutes
Do not exceed aircraft
35% MAC
Initial ice shedding if engine has been at idle for 10 mins, advance throttles and listen for vibration
35% N1
Flight idle minimum fuel load above 70% N2
40,000 lbs
Inboard above - maintain isometric thrust
40% N1
Right hydraulics quantity
4.00 - 4.50
Duty cycle for motoring
5-10-5-30-30
Minimum at idle before advancing or going to cut off
5 minutes
Outboard above idle - Maintain isometric thrust
5% N1
Chocks required for power runs
6
Minimum heat to MEC
10 minutes
light off - may take up to 30 seconds
10 seconds
Oil pressure operating range
11 - 90 PSI
Minimum oil pressure - light comes on
11 PSI
Left & Right hydraulics system pressure
2850 - 3200 PSI
APU accumulator pressure
3000 PSI (+/- 350)
Minimum reserve brake pressure
3100 PSI
Reserve brake pressure vents overboard
3400 PSI
Do not re-engage starter
above 25%
Watch for hot start
above 680 PPH
Anti-ice on for 10 minutes prior to start
below 0 F
Apply heat to MEC
below 32 F
Maximize - oil temp selector
M
Above 20% N2 with less than 1% rise in 5 seconds
max motor
Test - oil temp selector
T
Cross check - EGT should be less than 600 C
40% N2
Initiates starter cut out
43% - 45% N2
TRT danger area
50-6-900
Advance throttle “over the hump”
50% N2
Temp limit when held in test
175 - 196 oil
Fuel flow for start
300 - 680 PPH
Fuel flow at idle
400 - 800 PPH
Feet clearance for strobe lights
500
Max EGT for starting
725 C
Gen only EGT
800 F
Max continuous EGT
870 C
Max EGT for 5 minutes
871 C - 905 C
Aft of cargo station, requires hearing protection
900
Max EGT for 5 minutes - TRT
905 C
Fuel flow break out on start
1000 PPH
Normal mode EGT
1200 F
EWO EGT
1300 F
2 main tank minimum fuel for APU operation
2000 lbs
