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SkyWest CRJ Upgrade 2019 > ECS And Pneumatics > Flashcards

Flashcards in ECS And Pneumatics Deck (13):
1

What position do the L/R 14th stage bleed SOVs fail?

Fail open

2

What leak detection does the 10th stage have? The 14th?

Dual loop, heat sensing
Single heat sensing loop and thermal switches

3

How do the packs work?

Utilize a series of heat exchangers to control the temp of the air

4

What are the Cargo Bay SOVs?

Recirculation SOV
Conditioned air SOV
Exhaust air SOV

5

If the CPAM fails, will the pax O2 masks drop and seatbelt sign illuminate?

NO

6

When will a BLEED MISCONFIG msg appear?

When 10th stage bleed valves are open and wing / cowl A/I is on

7

When will a DIFF PRESS warning msg display?

Diff pressure is > 8.5

8

When will a CABIN ALT msg be displayed?

When cabin alt is >10,000 ft

9

When will a L/R PACK HI TEMP display?

Pack temp > 85* C

10

When will a L/R PACK HI PRESS caution be displayed?

Pack pressure > 47-51 psi

11

when will a CARGO OVHT caution msg appear?

Cargo bay temp >35*C

12

When using LP external air which doors must remain open?

MCD and or Avionics bay door

13

Aircraft pressurization is maintained by how many outflow valves?

2 valves