Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
11 Cards in this Set
- Front
- Back
|
How does cargo heat function? |
The cargo heat valves will attempt to maintain 45°F by using the control valve in each section. The control valves will open until the comparement is 47°F and close until lowered to a Boeing prederminted temp, and reopen. |
|
|
How many Pressurization controllers are there? |
3... 2 Auto 1 Manual |
|
|
If one of the Auto controllers fails, do we lose pressurization? Why? |
No, the other Auto controller will take over automatically. |
|
|
When will the AUTO INOP light come on? |
-Dual Auto controller failure -MAN is selected |
|
|
What will the Pressurization system try to maintain for optimum pressure at 35,000ft? |
8.6psi |
|
|
What is the max differential pressure for takeoff? |
.125psi (236ft below field elevation) |
|
|
What inputs do the pressurization controllers need? |
-ADC -Thrust lever position -IRU -CA altimeter -Main gear Air-ground logic |
|
|
When will the pressurization controller command changes? |
Climb - 500ft up Cruise - level for 1min Descent - 1000ft down |
|
|
When you see CABIN ALT, what does it mean? |
The cabin altitude has climbed above 10,000ft. |
|
|
During a CABIN ALT master warning, what happens when the cabin altitude continues it's climb well above 10,000ft? |
-At 11,000ft, cabin rate limiting occurs by electrically closing the outflow valves to limit climb. -At 14,000ft the PAX masks will drop |
|
|
What is the max cabin pressure? |
9.1psi |
