700/900 Ice & Rain Flashcards Preview

SkyWest CRJ Upgrade 2019 > 700/900 Ice & Rain > Flashcards

Flashcards in 700/900 Ice & Rain Deck (16):
1

What is the AILC? How many channels does it have?

Anti-Ice Leak Detection Controller: maintains leading edge temperatures, controls bleed air leak detection system, auto closes valves to mx temperature
2 channels, dual channels

2

What does a WING OVHT msg indicate?

Bleed overheating the wing, auto closes both wing anti-ice valves

3

What does the ICE DET TEST complete? What must be on to accomplish the test correctly?

Tests both ICE detection and air data sensor heaters
AC power MUST BE ON

4

Which leading edge/slat are heated? What happens when the slats are extended?

the inboard slats
Extended= heated even more to compensate

5

What indications are changed when the WING and or COWL A/ICE is ON?

White arcs on the N2 appear: 0-77% N2 ( just for wings)
On ANTI-ICE SYN PG: wing/cowl valves are white if in use, not cyan
*icons indicated actual position, not commanded position


6

Is the ISOL VALVE considered an Anti-ice valve?

NO

7

What does selecting the A/I XBLEED switch accomplish? When would this be done?

Affected, Opposite anti-ice valve closes and opens cross bleed switch
QRH directed

8

How is the XBLEED switch operated? What position does it fail?

Electrically
Last selected position

9

How is the COWL A/I valve regulated? Is it different from the 200?

It has an independent pressure transducer in a double walled duct
Not a PRSOV
No blow out plunger

10

What is the windshield wiper speed limitation?

250 KIAS

11

How is the speed of the wipers determined? CA or FO? Is there a delay?

Speed of both wipers is determined by the last selection, either side
5 second delay

12

What is the pre-takeoff contamination check? When is it conducted? Why?

Ensure critical surfaces are free of frozen contaminates prior to T/O, use flashlight or visuals to inspect the upper surfaces of FCs, may need to get pax to move to see wing
5 min before takeoff - if exceeded can repeat
HOT was exceeded or not valid due to WX change
Heavy snow,

13

Does + SN have a HOT? Can you T/O with +SN?

NOPE
YES, in 7/9 w/ pre-contamination check completed

14

How is an ENG Cowl leak detected?

Pressure transducer

15

What bleed air is used in the 7/9?

** 10th and 6th * need to check, no 14th stage used?

16

How is the WING A/I system monitored?

Dual channel AILC