Power Plant Flashcards by Roberto Oliveira

LP compressor has 1 stage and LP turbine

Has 4 stages

How well did you know this?

Not at all

Perfectly

N3 pertains to

High Speed rotor

How well did you know this?

Not at all

Perfectly

Annular combustion chamber is fitter with

2 igniters and 24 fuel nozzles

How well did you know this?

Not at all

Perfectly

FADEC is also known as

EEC Electronic Engine Control

How well did you know this?

Not at all

Perfectly

FADEC powered from electrical system when

N3 below 8% and self powered by magnetic alternator above that level.

How well did you know this?

Not at all

Perfectly

Data transmitted from the Engine Interface Unit EIU to the FADEC is used for

engine management throughout the flight regime.

How well did you know this?

Not at all

Perfectly

Taxi – below 80 kt – to prevent

Fan instability, FADEC avoids stabilized engine operation from 1.16 to 1.28 EPR

How well did you know this?

Not at all

Perfectly

FADEC system has a redundancy of

2 channels

How well did you know this?

Not at all

Perfectly

Engine Interface Unit transmits data to FADEC

To prevent fan instability, FADEC keep-out zone logic avoids

How well did you know this?

Not at all

Perfectly

Stabilized engine operation from 1.16.

to 1.28 EPR on the ground and below 80 kt

How well did you know this?

Not at all

Perfectly

In the automatic mode the Flight Management Guidance System computes

the thrust.

How well did you know this?

Not at all

Perfectly

Setting engine thrust is accomplished via

Control of Engine Pressure Ratio EPR

How well did you know this?

Not at all

Perfectly

FADEC computes and displays the

Thrust Rating Limit and EPR for a given thrust lever angle based on the thrust lever position

How well did you know this?

Not at all

Perfectly

EPR mode is the normal mode to

Control the thrust

How well did you know this?

Not at all

Perfectly

FADEC computes the command EPR as a function of:

Altitude, Mach number, Thrust Lever Angle

How well did you know this?

Not at all

Perfectly

During reverse operation, thrust is controlled as a function of

How well did you know this?

Not at all

Perfectly

Engines are in the manual mode when

Autothrottle is not armed and inactive

How well did you know this?

Not at all

Perfectly

From IDLE to TOGA, each thrust lever position

corresponds to EPR

How well did you know this?

Not at all

Perfectly

LVR CLB flashes white on FMA if

Levers not in Climb when aircraft above thrust reduction altitude

How well did you know this?

Not at all

Perfectly

Engine at idle – FADEC –

Modulated/Approach/Reverse Idle

How well did you know this?

Not at all

Perfectly

Modulated idle

Ground, no Reverse / flight flaps retracted and gear up

How well did you know this?

Not at all

Perfectly

Flaps 2 or gear down (type of idle)

Approach idle to accelerate rapid to GO AROUND if required

How well did you know this?

Not at all

Perfectly

Reverse on ground – (type of idle)

Idle slightly higher than forward Idle Thrust

How well did you know this?

Not at all

Perfectly

TCC improves engine performance by controlling the Intermediate Stability is provided by

2 air bleed systems

How well did you know this?

Not at all

Perfectly

Fuel in the tank is fed to each engine via

Main Engine Pump, Fuel / oil heat exchanger, Fuel Metering Unit FMU and Fuel nozzles

Overspeed protection is accomplished by closing the

HP shutoff valve

Doors on engine 1 and 2 are actuated by

The blue and yellow hydraulic systems, respectively

Hydraulic isolation valve is controlled by

FADEC

FADEC will automatically command the engine to idle and the blocker door to stow if at least one door is unstowed by more than

5% and reverse thrust is not selected while engine running

FADEC commands full reverse thrust when blocker doors are more than

90% deployed

Hot start =

EGT overlimit

Hung start=

Stall

Failure to light=

No light up

Locked N1 rotor =

Low N1

Automatic start abort is inhibited on ground when

N3 goes above 50%

FADEC controls ignition and starting system according to position of

ENG START SEL, ENG MASTER sw, ENG MAN START pb, ENG ANTI ICE pb

All functions except _____________ remain available if the signal from EIU is lost

manual start and wet crank

A start valve and ____________comprise the Engine Starting System

an air turbine starter

In case of N1 rotor locked, how many more automatic start attempts after cracking does FADEC initiate?

In terms of N3, the start valve closure valve is above

50%

With ENG START SEL in CRANK position and MAN START pb selected ON,

Start valve opens

With ENG START SEL set to NORM and ENG ANTI ICE ON,

Continuous ignition via FADEC channels A and B is also automatically selected

With ENG START SELE set to NORM, in the event of an engine flame-out detected by FADEC

Continuous ignition is automatically activated for 10 seconds

With ENG START SEL in IGN START position,

During an automatic start, ignition occurs on ground when N3 is at least 25%

With ENG MASTER sw OFF, a signal is sent to

HP an LP fuel valves to close, which resets both FADEC channels

With ENG FADEC GND PWR pb is selected ON, FADEC receives power from the aircraft network for five minutes except if the

ENG FIRE pb is out or the FADEC generator is available.

The upper ECAM screen displays the primary parameters and the lower ECAM screen displays the secondary parameters when selected

manually or automatically

The engine Primary parameters can be displayed on each Navigation Display using the selector on the EFIS Control Panel if

a Display Management Computer ECAM channel failure occurs.

EPR commanded by FADEC is displayed via a green needle and a green triangle next to the needle indicates the direction of EPR tendency. The symbols are shown when

the Autothrust is active.

Transient EPR is the difference between Actual EPR and EPR command. It is shown only when

the autothrust is active

EPR MAX is a line displayed in

solid amber

When the reverse thrust blocker doors are fully deployed and reverse thrust mode is selected,

the thrust reverse indication changes to green and is over-illuminated.

When at or above idle, to indicate a successful engine relight in flight the

AVAIL indication pulses in green

EGT indication becomes solid red if the EGT exceeds

920ºC or 900º C for 20 seconds

EGT MAX is not available when Takeoff Thrust is applied,

A FLOOR is active, Reverse Thrust is selected

Above 100%, N3 indication becomes solid red and a

solid red cross appears next to it.

If N2 exceeds 103,3% the indication becomes

Red and a red cross appears beside it, which disappears after a new start on the ground

Oil quantity is shown in quarts. The numbers and needles are normally green. If the oil quantity drops below

4 quarts, numbers pulse.

If vibration of N1 is greater than 3.3 units, N2 more than 2.6 units, or N3 in excess of 4 units,

the indication pulses

FADEC detects

Hot, hung, no light up, surge, locked N1 rotor, FAULT ECAM starts

After second engine started, ECAM ENGINE page is replaced by WHEEL page

15 seconds after start, if ENG START sw is not returned to NORM

Rotating ENG START SEL to the ignition (IGN) position causes the pack valves to

Close and the ECAM ENGINE page to appear

If after START sel is moved to the ignition IGN position the ENG MASTER sw is not moved to ON within

30 seconds, the pack valves reopen

If START sel is not rotated back to NORM, the ECAM WHEEL page automatically

Replaces the ENG page 15 seconds after starting ENG 2

Before raising the guard on any guarded switch or control, what is required?

Confirmation with the other crew member that the current switch or control is selected

ECAM procedures require that any Master warning or master caution is

Cancelled first, then the title of the abnormal is read out to the Pilot Flying

If an engine is damaged the N2 or N3 rotors may be seized or a red spike marker on the EGT gauge may show an exceedance; After confirmation with PF, the Inner tank split switches are turned off for a short period; after confirmation with PF, the

FIRE pb is pushed and after 10 seconds the FIRE pb is pushed, if the indication of fire is still on, the Agent 1 DISCH pb is pushed

If FADEC fails , what references are there for normal engine operation?

Other indications such as hydraulic, electrical, AC or bleed pages must be used to confirm engine status

If a reverser unlocks in flight, what is the first crew action?

Cancel the master caution and read the ECAM actions on the ECAM memo page to the PF