Power Plant (IAE 2500)

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On ground, the start sequence is automatically aborted:

In case of hot start, hung start, a stall or no light up

During an automatic start on ground, the sequence is:

Ignition and HP fuel valve opening after 30 sec dry cranking, start valve closure by N2 > 43%

Thrust reversers are actuated by:

Hydraulic actuators: green for engine 1 - yellow for engine 2

The FADEC is electrically supplied by:

Self powered above 10% N2. In case of self-power loss, the FADEC is supplied by the A/C electrical system

What is the EGT limit at TOGA power setting?

635°C for 5 min both engine running

What is the maximum continuous oil temperature:

155°C

The maximum continuous oil temperature limit may be exceeded . What is the limit, and under what conditions?

165°C for less than 15 min

What is the minimum starting oil temperature:

-40°C

What is the maximum N1:

100%

What is the maximum N2:

100%

What is the starter operating time for the 3 consecutive cycles?

2 cycles of 2 minutes each, followed by a 3rd cycle of 1 min pause between each attempt 15 seconds

Starter cool down time requirements are:

30 min cooling time after 3 attempts or 4 minutes of continuous cranking

The maximum reverse thrust should not be used below:

70 knots (idle reverse down to A/C stop)

What is the maximum allowable flex temperature?

ISA + 55°C

Reduced Take-off thrust is not permitted:

On contaminated runway

EGT indication turns red on E/WD, when EGT is higher than:

635°C

What is the FADEC?

A Full Authority Digital Engine Control unit

What device provides direct closure of the HP and LP shut-off valves?

The master switch in the OFF position

Which valve ensures an adequate fuel flow:

The fuel metering valve

What is normal thrust mode called?

EPR

During an automatic starting sequence, when does the pack valve close?

When IGN/START is selected

During an automatic starting sequence:

start valve closes at N2>43%

Maximum EGT during engine start is:

635°C

The FADEC automatically selects continuous ignition in the following cases:

Both (Engine anti-ice ON and engine running) and (MAX T/O thrust selected and engine running) are correct

How is the oil cooled?

By the fuel/oil heat exchanger and air/oil heat exchanger

Oil pressure indicator turns red when pressure is lower than?

60 psi

REV GREEN appears on the EPR indicator when?

The reverse cowls are fully deployed

The low pressure rotor (N1) consists of:

A front fan (1 stage) - 4 stage LP compressor - 5 stage LP turbine

LVR ASYM amber message (FMA) means:

The thrust lever are not aligned

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