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How are engine and APU bleed valves controlled?
Electrically controlled pneumatically operated.
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ENG 1 or APU supply?
ENG 2 or ground air supply?
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What stage bleed air is used for engine cowl, and leading edge antiice?
what protects leading edge slats?
- 5th stage high pressure compressor.
- Thermal Switches.
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Window Heat Power
L1 L4 L5 R2 are powered by ?
R1 R4 R5 L2 are powered by?
R3 L3?
What do windows 1&2 have?
- Gen Bus 1
- Gen Bus 2
- not heated.
- overheat protection.
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Pneumatic Panel
Amber Bleed Trip Off Light illuminated when?
- Overpressure
- Over Temp
- Bleed valve closes automatically.
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What does the Trip reset button reset?
Bleed trip off light, pack trip off and overheat lights.
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Amber Wing Body Overheat illuminates when?
Overheat due to the leaks of pneumatic and air conditioning.
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Amber Dual Bleed light illuminates when?
valve and switch positions allow engine air to flow back to APU.
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Blue COWL Valve OPEN Light illuminates when?
- Bright when valve is in transit or diagree with valve position and switch.
- Dim when valve is open.
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Amber Cowl Antiice Light illuminates?
When overpressure and over temp in cowl duct.
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Blue L or R Valve OPEN?
- Dim -Open
- Bright -In Transit
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What window is heated byFWD Window heat switch?
What about side switch?
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What is Green ON light under window heat?
When does it extinguish?
- for windows #1 & 2.
- When sytem failure, overheat, switch in OFF posiiton, or within temp range.
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Amber window OverHeat light illuminates when?
- overheat or power interuption.
- windows 1 and 2 only.
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What system does Pitot static A switch operate?
Pitot Static B ?
- Left side probe switches
- right side probe switches.
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Amber Temp Probe Light illuminates ?
- when temp probe or alpha vane is not heated.
- Only works in Flight not on ground.
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What happens to Isolation valve switch when in AUTO?
- Closed to seperate L and R sides.
- Opens if any PACK or Bleed switch OFF.
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What side does APU air supply?
How does it supply the other side?
- Left.
- Isolation valve opens to supply right side.
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Amber Dual bleed valve illuminates when?
- APU Bleed valve open and
- -bleed 1 switch ON or
- -bleed 2 switch ON and isolation valve open.
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What position will Engine Bleed Valve be in during electrical loss?
Last position it was in.
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What air data probes are not electrically heated?
Alt static Port.
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