Parameters Flashcards
When inboard engine is run above 40% N1, the symmetrical engine must be within…
5% N1
Icing conditions are…
Below 50°F and moisture
Do not engage starter above…
25% N2
Engine starter duty cycle for starting
90 sec on, 60 sec off
90 sec, 60 sec
90 sec, 10 min off
Engine starter duty cycle for motoring…
5 min on, 10 min off
5 min, 30 min
5 min, 30 min
Starter light fails to go out 10 sec after 45% N2
• throttle to cutoff
• engine bleed air switch off
Air temp <32°F heat MEC…
10 min, 30 preferred
Temp is 32°F or below, ignition switch set to ignition after reaching…
50% N2
APU START/STOP switch to START, tachometer accelerates to…
100% rpm
APU EGT at ____ in GEN ONLY and ____ when in NORMAL MODE
800°F
1200°F
N2 rollback, EGT rises. DONT USE FUEL FLOW AS A STALL INDICATOR
Sub-idle start stall
No EGT rise by 10 sec
No-start
EGT exceeds 725°F
Hot start
EGT rise with no RPM increase
False start
Light off with EGT increase, slow acceleration and RPM stabilization below ground idle
Hung start
How long do you have to reach 20% N2?
30 sec
Breakthrough fuel flow…
1000 PPH
Advance throttle to start at _____ N2
20% N2 min-25% N2 max
Fuel flow after placing throttle to start
300-680 PPH
EGT indication after placing throttle to start within…
10 sec
Oil press before throttle to start?
Positive pressure
EGT at 40% N2
< 600C
Operate engine at idle for _____ prior to advancing
5 min
Advance throttle to idle at approx _____ N2
50% N2
Place starter switch to OFF at _____ N2
(ignition below 32F)
50%
Oil pressure at idle
13-35 psi
N1 at idle
16%-22%
N2 at idle
54%-62%
Oil temp less than ____ at idle
160C
Fuel flow at idle
400-800 PPH
To shed ice, increase N1 to ________
35% then slowly to 70% for 15 sec
Min HYD reservoir limit
2 GAL
R and L hyd press gauges at idle
2850-3200 psi
When should fuel boost pump switches be placed to off?
0% N2
When should HYD PRESS switch be placed off?
0% N2
APU GEN ONLY RPM
60% rpm
APU Normal mode RPM
100%
