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23 Cards in this Set
- Front
- Back
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RF displays at what Hydraulic quantity? |
76% |
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When does the STBY Hydraulic Low Quantity light come on? |
Below approximately 50% |
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What powers Hydraulic A electric pump? |
AC Transfer Bus 2 |
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A leak in #1 engine driven hydraulic pump results in what A system hydraulic fluid level ? |
20% |
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Leak in #1 Electric Driven Hydraulic Pump results in what A Hydraulic fluid level? |
0% |
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What is the minimum fuel required to properly cool the electric hydraulic pumps? |
1675 pounds in the respective main tank |
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Does the engine driven hydraulic pump shutoff valve fail open or closed? |
Loss of electrical power will cause it to fail open |
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When is the engine driven hydraulic pump low pressure light inhibited? |
When the respective fire handle is pulled |
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Where does B system electric motor pump receive electrical power from? |
AC transfer bus 1 |
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If you get a leak in the B system, how much hydraulic fluid will be left on the indicator? |
0%. But there will be sufficient fluid to power the power transfer unit |
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When will system B retract the landing gear? |
Number one engine N2 rpm falls below 56% with the landing gear lever up and either main gear not up and locked |
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Why is the B system reservoir larger than the A system reservoir? |
So the standby system reservoir can receive a portion of the B system fluid |
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If the standby hydraulic system has a leak, what will the B system reservoir quantity stabilize at? |
Approximately 72% |
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When is the standby hydraulic system low pressure light inhibited? |
When the standby system is off |
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When you turn on the standby rudder switch, what light extinguishes? |
Associated system low pressure light (unless the standby rudder shutoff valve fails to open) |
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How can you turn off the yaw damper without touching the switch? |
Move the B flight control switch to the standby rudder position |
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If you lose the B hydraulic system, how can you extend the flaps? |
Alternate flap switch to arm. Down will hydraulically extend the leading edge devices and will extend the trailing edge flaps through an electric motor |
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With alternate flaps, after you extend the flaps can you raise them? |
Yes, with the electric motor. Remember that the leading edge devices will remain full down |
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Switching alternate flaps to armed does what 3 things? |
Turns on the standby pump Arms up/down switch Closes the trailing edge flap bypass valve |
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When does the standby rudder on light illuminate? |
When the standby rudder PCU is pressurized |
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When does the standby hydraulic system automatically operate? |
When A or B hydraulic system fails during takeoff or landing |
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When does the standby hydraulic system automatically shut off? |
When the flaps are retracted in flight (unless a flight control switch is in standby rudder or the alternate flaps switch is armed) |
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When does the PTU automatically operate? |
The output pressure of the B system engine driven pump falls below acceptable limits and inflight, flaps extended 1to 15 (800 - any flaps) |
