Limitations (Air Bleed/Cond/Press/Vent)

Question 1

With passengers on board, it is not recommended to exceed ____ min without air conditioning supply.

Answer 1

20 min. The lack of fresh air supply will significantly reduce the cabin’s air quality.

Question 2

The flight crew must not use bleed air from the ____ and the ____ at the same time, to prevent any adverse effect on the Bleed Air System.

Answer 2

APU BLEED and HP Air Start Unit

Question 3

Time Limitation for Normal Avionics Ventilation System using Aircraft Electric Power Supply, on ground

OAT ≤ 49 °C

Answer 3

No limitation

Question 4

Time Limitation for Normal Avionics Ventilation System using Aircraft Electric Power Supply, on ground

49 °C ≤ OAT ≤ 55 °C

Answer 4

2 hours

Question 5

Time Limitation for Normal Avionics Ventilation System using Aircraft Electric Power Supply, on ground

55 °C ≤ OAT ≤ 60 °C

Answer 5

1 hour

Question 6

Time Limitation for Normal Avionics Ventilation System using Aircraft Electric Power Supply, on ground

60 °C ≤ OAT ≤ 64 °C

Answer 6

0.5 hours

Question 7

Maximum Positive Differential Pressure

Answer 7

9.0 psi

Question 8

Maximum Negative Differential Pressure

Answer 8

-1.0 psi

Question 10

Safety Relief Valve Setting

Answer 10

8.6 psi

Question 11

The flight crew must not use conditioned air from the packs an from the ____ at the same time, to prevent any adverse effect on the Air Conditioning System.

Answer 11

LP Air Conditioning Unit

Question 12

Minimum Cabin Altitude Selection

Answer 12

-2,000 ft

Question 14

Maximum Operating Altitude

Answer 14

39,800 ft

Question 15

Outflow Valve Closure Altitude

Answer 15

15,000 ft

Question 16

Maximum Cabin Altitude Selection

Answer 16

14,000 ft

Question 17

Cabin Altitude Warning Altitude

Answer 17

9,550 (± 350 ft)

Question 18

Maximum Normal Cabin Altitude

Answer 18

8,000 ft