SYSTEM

Question 1

Anti ice components?

Answer 1

Engine Cowl LI
LE SLATS
Temp Probe
Pitot Probes x 3
Alpha vanes x 2
Elevator Pitot Heat x 2
FD windows (heat and wipers)

Question 2

Window 1, 2,3 type

Answer 2

1, 2 glass pane, laminated to each side of a vinyl core.
3, two acrylic panes separated by air space

Question 3

Explain window heating

Answer 3

conductive coating outer glass pane of window 1, 2 allows elec heating.

Question 4

Power auto removed ?

Answer 4

overheat

Question 5

Window heat controllers?

Answer 5

4 controllers or 2 controller system.

Question 6

Standby power - which probes heated?

Answer 6

NG none
MAX the CAPT PITOT, but light does not illuminate for failure.
pitot probe for standby airspeed not heated on STBY power

Question 7

Cowl anti ice valve controlled and actuated?

Answer 7

Elec controller
Pressure actuated

Question 8

Stall warning logic?

Answer 8

adjust stick shaker and MIN maneuver speed bars on airspeed indicator. FMC VREF not adjusted auto.

Question 9

MAX engine anti ice system purpose ?

Answer 9

prevents ice on engine cowl lip AND
engine core**

Question 10

Core anti ice MAX?

Answer 10

Auto controlled by EEC. No input or indication. EEC - bleed air to engine core as needed based on engine parameters and outside conditions.

Question 11

Switch ON?

Answer 11

bleed air flow through cowl anti ice valve to lip.
Sets stall warning logic for icing cond
MAX - set idle speed as per table:
FUP - icing idle
F<15 - App idle
15 or > - APP idle

Question 12

ENG ANTI ICE switches off, idle mode?

Answer 12

EEC
flight idle - F< 15
App idle - F15 or >

Question 13

WAI protection?

Answer 13

3 x inboard LE slats.

Question 14

WAI control valve motor?

Answer 14

AC operated.