ENGINE MALFUNCTION

Question 1

ENGINE MALFUNCTION
If possible, should the flight crew keep the engine running? And why?

Answer 1

• YES, except if a procedure requires an engine shutdown.
• Even at idle, the engine powers the hydraulic, electric, and bleed systems.

Question 2

TAILPIPE FIRE
When can an engine tailpipe occur and why does it occur?

Answer 2

• An engine tailpipe fire can only occur at engine start or at engine shutdown.
• It is the result of an excess of fuel in the combustion chamber, in the turbine or in the exhaust nozzle, that ignites.

Question 3

TAILPIPE FIRE
What is the correct way to deal with a tailpipe fire?

Answer 3

• Stop the fuel flow and ventilate the engine.

Question 4

TAILPIPE FIRE
In this case, is there a cockpit indication?

Answer 4

• The only indication can be an increasing EGT due to the fire in the turbine.

Question 5

TAILPIPE FIRE
Which procedure do you ask for?

Answer 5

• QRH ENG TAILPIPE FIRE

Question 6

TAILPIPE FIRE
Should you use the ENG FIRE pb? Why?

Answer 6

• NO.
• This cuts off the electrical supply of the FADEC, and stops the dry crank sequence performed by the FADEC.

Question 7

TAILPIPE FIRE
Should you use the fire extinguisher?

Answer 7

• NO, as it does not extinguish an internal engine fire.

Question 8

ENGINE VIBRATIONS
Which procedure can you refer to if no ECAM?

Answer 8

• QRH HIGH ENGINE VIBRATION

Question 9

ENGINE VIBRATIONS
When can you suspect if the vibrations are due to ICING?

Answer 9

• If N1 vibrations occur without variation on other engine parameters.

Question 10

ENGINE VIBRATIONS
If you suspect ICING, what should you do?

Answer 10

• Disconnect the A/THR
• Performs several large thrust variations from idle to a thrust compatible with the flight phase.
• It may be necessary to perform several engine run-ups (decrease and then increase of thrust) to fully shed the ice.

Question 11

ENGINE VIBRATIONS
What can you do to reduce vibrations?

Answer 11

• If flight conditions permit, reduce thrust to make the vibrations decrease, and stay below the ECAM alert and ECAM advisory threshold.