VENTILATION Panel [Air Cond/Press/Vent]

Question 1

When would a pilot select the EXTRACT to OVRD?

VENTILATION Panel [Air Cond/Press/Vent]

Answer 1

• Heavy Rain on the ground
• When directed to by the ECAM

Question 2

What are some potential causes for the illumination of the BLOWER FAULT
pb light?

VENTILATION Panel [Air Cond/Press/Vent]

Answer 2

• Low blower pressure.
• Duct overheat.
• Computer power supply failure.
• Smoke warning activated

Question 3

What are some potential causes for the illumination of the EXTRACT FAULT
light?

VENTILATION Panel [Air Cond/Press/Vent]

Answer 3

• Low extract pressure.
• Computer power supply failure.
• Smoke warning activated.

Question 4

What condition in the avionics ventilation system would cause an external
horn to sound?

VENTILATION Panel [Air Cond/Press/Vent]

Answer 4

• BLOWER FAULT or EXTRACT FAULT on the ground with both engines stopped.

Question 5

Describe the avionics ventilation system.

VENTILATION Panel [Air Cond/Press/Vent]

Answer 5

It is a fully automated system that considers the skin temperature and adjusts inlet and outlet flaps to optimize cooling and airflow.

Question 6

EXPLAIN OPEN CIRCUIT CONFIGURATION

VENTILATION Panel [Air Cond/Press/Vent]

Answer 6

Both the inlet and the outlet flaps are fully open (aircraft is on ground and the skin temperature is above a set threshold)

Question 7

EXPLAIN CLOSED CIRCUIT CONFIGURATION

VENTILATION Panel [Air Cond/Press/Vent]

Answer 7

Both the inlet and outlet flaps are fully closed. The SKIN EXCHANGE INLET BYPASS VALVE and SKIN EXCHANGE ISOLATION VALVE is open, allowing air to the cargo under floor, eventually exiting via the outflow valve (aircraft is on the ground or in- flight and the skin temperature below a set threshold).

Question 8

EXPLAIN INTERMEDIATE CIRCUIT CONFIGURATION

VENTILATION Panel [Air Cond/Press/Vent]

Answer 8

The Inlet flap is fully closed the outlet small flap is open (aircraft is in flight and the skin temp is above a set threshold)

Question 9

EXPLAIN WHAT HAPPENS TO THE CONFIGURATION WITH A BLOWER or EXTRACT FAULT

VENTILATION Panel [Air Cond/Press/Vent]

Answer 9

Both inlet and outlet flaps are fully closed, SKIN EXCHANGE INLET BYPASS VALVE closed.

Question 10

SMOKE CONFIGURATION

VENTILATION Panel [Air Cond/Press/Vent]

Answer 10

Once the BLOWER and EXTRACT pushbuttons have been selected to OVRD, the blower fan will stop, the extract fan will continue to run. The inlet flap closes, the small outlet flap opens, the SKIN EXCHANGE ISOLATION VALVE closes and the SKIN EXCHANGE INLET BYPASS VALVE closes.