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6 Cards in this Set
- Front
- Back
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Which stages is bleed air supplied from?
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Bleed air is supplied from the 5th and 9th satge. When 5th stage bleed air supply is insuffcient the high stage valve opens to maintain adequate bleed air pressure.
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How how engine BLEED AIR valves activated?
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The valves activated by DC power and operated pnumatically.
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What does BLEED TRIP OFF light indicate?
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The BLEED TRIP OFF light indicates:
- an exceedance of temperature - an exceedance of pressure limits |
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When is the starter valve open and closed? Which system operates the starter valve?
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The starter valve is open when the Engine Start Switch is placed to GRD.
The starter valve is closed at 56% N2 The starter valve is operated by the DC system. |
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How does the Isolation Valve, in AUTO, work?
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In AUTO the valve is:
- closed if both bleed air switches ON and both air con packs are in AUTO or HIGH - open if any engine bleed air switch or air con pack is selected OFF |
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What does the DUAL BLEED light indicate?
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DUAL BLEED indicates:
- APU bleed air valve OPEN and No 1 engine bleed switch ON - No 2 engine bleed air switch ON, APU bleed valve open and isolation valve OPEN |
