Term
| How many KVA is the APU generator and where is it located? |
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Definition
| 90 KVA-right main landing gear pod. |
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Term
| Where are APU Faults displayed? |
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Definition
| APU ECU-Upper right avionics rack |
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Term
| How many volts is the APU starter motor? |
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Definition
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Term
| How is the APU 28V DC motor started? |
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Definition
| external AC power using T/R (transformer/rectifier) or aircraft batteries |
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Term
| What are the two instances the APU ECU cannot be overridden? |
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Definition
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Term
| How long can you operate the APU starter? |
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Definition
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Term
| How long must you wait between start attempts/starter engagements? |
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Definition
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Term
| How many start attempts can you try in an hour? |
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Definition
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Term
| True or False: Going from RUN to START is considered a start attempt. |
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Definition
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Term
| From where do you normally supply the APU with fuel? |
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Definition
| #3 fuel boost pump forward one is normal, aft is acceptable |
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Term
| If FIREX AGENT DISCHARGE 1 POWER CB (OVHD E13) is pulled, can you start the APU? |
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Definition
| Yes but APU start and operation must be fire guarded by ground personnel, do NOT reset CB |
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Term
| What do you do upon APU start if the RPM indicator blinks 85% five times? |
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Definition
| Perform abnormal start procedures |
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Term
| What is the first thing that happens when an APU start is initiated? |
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Definition
| The APU ECU is energized and a Built in test (BIT) is accomplished. |
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Term
| What may happen if you continue an APU start with 85% RPM flashing? |
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Definition
| possibility of apu exhaust fire. |
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Term
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Definition
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Term
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Definition
| EGT decreases to approx 375 C, starter disengages |
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Term
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Definition
| Ignition deenergized, APU generator/bleed air system enabled |
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Term
| What happens two seconds after 95% RPM? |
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Definition
| APU PWR AVAIL and bleed air available. |
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Term
| What do you do if the apu has started, but the APU PWR AVAIL light isn't illuminated? |
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Definition
| You may reset the APU PWR switch one time. |
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Term
| What does the APU ECU do when you take the APU start control switch to off? |
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Definition
| Simulates an overspeed condition of 104% RPM, checking the overspeed protection circuit, shutting down the APU |
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Term
| What is normal APU start time? |
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Definition
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Term
| What's the normal operating range of the APU EGT? |
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Definition
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Term
| After APU start you will get a WAP caution FUEL PRESS LOW if #3 boost pump isn't turned on within __ minutes. |
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Definition
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Term
| When must your APU be operational? |
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Definition
| for all home station departures or for any mission into a field without alternate electrical or air sources |
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