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45 Cards in this Set
- Front
- Back
What is the maximum allowed Exhaust Gas Temperature? |
585 Degrees Celsius |
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What is Normal Engine N1 Speed w/ Isol Valve closed? |
63+/- 2 |
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At what percentage does the starter disengage? |
50% N2 |
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What is Normal Engine N1 speed w/ Isol Valve open and Main Engine Start selected? |
97% |
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What is Normal Engine N2 speed regardless of Isol Valve position of Main Engine Start? |
100% +/- 1 |
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What should oil quantity be before start? |
6 qt. |
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When APU is operating what is the minimum oil level before shutoff? |
2.5 qt. per the 2-49CL or 2 qt. per the 2-49 T.O |
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What kind of signal can be caused when turning the Master switch to off? |
False Overspeed Signal to the Electronic Control |
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What is the maximum Oil Consumption for the APU? |
500cc /hr or 0.5 qt. /hr |
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What is the Starter Duty Cycle? |
0-1 Minutes ON, 5 Minutes OFF, w/ a maximum of 4 start-up attempts in a 20 minute period, followed by an hour cooldown. |
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During APU Start if Engine N2 RPM stops rising for any period of _________ , terminate start. |
4-5 Seconds |
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If ____ is not achieved in ____ place APU master switch in OFF position. |
25% N2 , 25 Seconds |
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Fuel enters Primary Fuel Manifold at what percent of N2? |
6.5% |
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After placing APU Master switch to the run position, how long should it take for APU USING BATT PWR light to come on? |
30 Seconds |
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Acceleration Limit in Warm conditions is? |
45 Seconds |
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Acceleration Limit in Cold conditions is? |
60 Seconds |
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If APU OIL PRESS LO TEMP HI light does not come on then go out between __ and __ N2 immediately place APU master switch in OFF position. |
0 and 50% |
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Starter cut-out speed is approximately what percent of N2? |
50% |
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The following light comes on once between 95-100% N2 RPM. |
APU PWR Avail Light |
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The following lights should go off between 95-100% N2 RPM. |
1. APU BAT PWR 2. APU Fuel Pressure Low Light 3. APU Generator OFF |
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What should you do if APU Gen Off Light fails to go off above 95% N2 RPM? |
Place APU Generator switch momentarily to reset and check it light goes off. If APU Gen OFF light remains on, shutdown APU. |
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If the APU FUEL Press LO Light fails to go out, or comes on during APU operation what should you do? |
Immediately Shutdown |
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If APU OIL PRESS LO TEMP HI Light comes on above 95% N2 RPM what should you do? |
Immediately Shutdown |
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When EGT increases w/ out corresponding rise in RPM what should you do? |
Immediately Shutdown |
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APU GEN Fail light remains on after reset, what should you do? |
Immediately Shutdown |
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APU is still using BATT PWR after 95% N2 RPM what should you do? |
Immediately Shutdown |
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What happens when the Fire Bite switch is pushed? |
APU will auto-shutdown |
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While APU is in operation Ground personnel should not do what? |
Stand under APU access door, unless troubleshooting is required. In which case extreme caution should be used. |
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If APU are not going to be occupying Aircraft or Flight compartment what panel must be open? |
APU External Fire control panel, located AFT of Left Wheel Well. |
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Before applying electrical power what must always be checked? |
The CAC Compartment for evidence of fuel vapors. |
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What must be activated in order for APU fire detection system to work? |
APU Battery Switch must be in BAT position |
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What should battery voltage be at prior to APU start? |
26 VDC |
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APU will not shutdown w/ master switch in OFF position unless ISOL valve has been CLOSED postion for ____. |
90 Seconds |
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What is STANDBY Mode used for? |
Troubleshooting purposes or when Normal mode is inoperable. |
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Switching from Normal mode to Standby mode during operation can damage what component? |
Electronic Control Box |
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When all pneumatic loads are removed from APU what should be done? |
APU ISOL Valve should be in off position |
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If APU tail cone is rotated in the down position what should be installed? |
APU Exhaust Deflector |
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When flight compartment electrical buses are not required what should be used? |
Ground Electrical Buses |
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What should be pressed in order to check if AGENT 1, AGENT 2 LOW lights come on? |
ALL TEST switch |
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#2 Afto Tank Boost pump ON, minimum fuel for APU Operation not less than _____ in #2 Tank. |
1000Ibs |
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The APU door open light should go off approximately ___ after APU MASTER switch is placed to the OFF position +____ more seconds for doors to fully close. |
60 seconds and 30 seconds |
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In order to prevent _________ shutdown place fuel pump switch to ON. |
Inadvertent |
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Cabin Outflow valve must be in what position? |
Open or AUTO |
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If battery power is not available then most annunciator lights and oil quantity will be unavailable. True or False? |
True |
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Iso Valve takes how long to close and how long to open? |
90 seconds to Open, and 60 to close. |