Air/Press/Vent Flashcards
(24 cards)
Maximum operating altitude?
39,000 ft
Maximum normal cabin altitude?
8,000 ft
Cabin altitude pulses green?
When does it reset?
Pulses green at 8,800 ft and reset at 8,600 ft
What altitude is the cabin altitude in red?
9,550 ft
The outflow valve closes when the cabin altitude is at?
15,000 ft
The seatbelts, no smoking & exit signs turn on automatically when passing a Cabin Altitude of?
11,300 ft
Max and Min Safety Relief Valve setting?
Max: 8.6 psi
Min: 1 psi
Max positive differential pressure?
9.0 psi
Max negative differential pressure?
- 1 psi
What is the temperature range of each Zone Controller on the air conditioning panel? Min and Max, noon position?
Min: 18 degC
Max: 30 degC
Noon position: is 24 degC
Ram air inlet operation? Differential pressure needs to be?
Differential pressure < 1.0 psi
Simultaneous use of the APU pneumatic & HP air is?
Prohibited
Avionics Ventilation: during ground operation, when the aircraft electric power supply is used, what is the limit when the OAT is less or equal to 49degC?
No limit
Avionics Ventilation: during ground operation, when the aircraft electric power supply is used, what is the limit when the OAT greater than 49degC but is less or equal to 55degC
2 hours
Avionics Ventilation: during ground operation, when the aircraft electric power supply is used, what is the limit when the OAT greater than 55degC but is less or equal to 60degC
1 hour
Avionics Ventilation: during ground operation, when the aircraft electric power supply is used, what is the limit when the OAT greater than 60degC but is less or equal to 64degC
30 mins
Simultaneous use of the aircraft packs and LP cart air is?
Prohibited
What are the unpressurized areas of the aircraft?
Raydome/nose area, nose gear bay, main gear bay, air conditioning compartment, tail cone
With the Ditching switch on, what will be closed?
Outflow valve, air packs, RAM air, avionics inlet and outlet. Outflow valve does not close when in manual mode
How to use the Man V/S Toggle switch?
Press Man and up to open the Outflow valve and down to close it.
Maximum Cabin Vertical Speed descent rate?
750ft/min
Maximum Cabin Vertical Speed rate? When does it flash?
1,650ft/mim. Flashing at 1,750ft/min
What is the 4 general roles of the pressurization system?
On the ground, the outflow valve is fully open
At the take off, adjusts to avoid a cabin pressure surge
In cruise, regulates
Landing, with gears compressed gradually releases pressure adjust and opens the outflow valve
Name the three types of circuit conditions for the Ventilation system
Open, closed, intermediate
