Reverse thrust can be selected with the forward thrust levers in what position?
Idle thrust position.
Each engine has two igniter plugs. The EEC arms the igniter plug(s) selected by the ignition select switch. The Left igniter plug receives power from the DC Standby bus while the Right igniter plug receives power from the AC standby bus.
False.
Starter Cutout speed is:
Approximately 56%.
An auto-relight capability is provided for flame-out protection. Whenever the EEC detects an engine flameout, both igniters are activated. A flameout is detected when:
An uncommanded rapid decrease in N2 occurs or N2 is below idle RPM.
At low N2 values, the oil scavenge pump may not provide enough pressure to return oil to the tank, causing a low quantity indication. Normal oil quantity should be indicated after start.
True.
Which hydraulic system normally powers the thrust reversers?
System A for engine No.1 & system B for Engine No.2.
The EEC drives all engine indications except:
Oil quantity & engine vibration.
Loss of either DEU:
Results in a loss of signal to the affected EEC.
If a wet start is detected, the EEC will automatically turn off ignition & shut off fuel to the engine:
15 seconds after the start lever is moved to idle during ground starts.
The amber DUAL BLEED light is illuminated before starting engines. What should you do?
Nothing, this is normal condition.
The EEC automatically selects ground minimum idle, flight minimum idle and approach idle. Approach idle is selected in flight:
If flaps are in landing configuration or engine anti-ice is ON for either engine.
Approach idle is maintained:
Until after touchdown, when ground minimum idle is selected.
In flight, if a fault prevents the EEC from receiving flap or anti-ice signals, approach idle schedule: begins:
Below 19000ft feet MSL.
The EGT display, both box & dial, turn red and the EEC automatically turns off ignition and shut off fuel to the engine if:
The EGT exceeds the starting limit during ground starts.
Once activated, the DC operated fuel pump operates automatically until:
An AC fuel pump pressurizes the manifold.
What are the indications that the engine starter has disengaged?
The start switch automatically returns to OFF, and the START VALVE OPEN light extinguishes.
Engine oil pressure is in the yellow band at idle power.
Acceptable, no action is necessary.
EEC alternate mode thrust is always equal to or greater than normal mode thrust for the same thrust lever position.
True.
The EEC automatically selects approach idle in flight anytime:
Flaps are in the landing configuration or engine anti-ice is ON for either engine.
During a normal engine start:
Only N1, N2, oil quantity and engine vibration are available prior to placing the engine start switch to GND.
The APU GEN OFF BUS light will illuminate:
When the APU is at operational speed and is not supplying an AC Transfer bus.
If a crossbleed start is required during in flight starting, the X BLEED START indication will be displayed above the N2 dial.
True.
Of the four lights located on the APU control panel, which light will NOT cause an automatic shutdown of the APU when it illuminates?
MAINT.
The EEC provides EGT redline exceedance protection.
False.
