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45 Cards in this Set

  • Front
  • Back

What is the maximum allowed Exhaust Gas Temperature?

585 Degrees Celsius

What is Normal Engine N1 Speed w/ Isol Valve closed?

63+/- 2

At what percentage does the starter disengage?

50% N2

What is Normal Engine N1 speed w/ Isol Valve open and Main Engine Start selected?

97%

What is Normal Engine N2 speed regardless of Isol Valve position of Main Engine Start?

100% +/- 1

What should oil quantity be before start?

6 qt.

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

What kind of signal can be caused when turning the Master switch to off?

False Overspeed Signal to the Electronic Control

What is the maximum Oil Consumption for the APU?

500cc /hr or 0.5 qt. /hr

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.

During APU Start if Engine N2 RPM stops rising for any period of _________ , terminate start.

4-5 Seconds

If ____ is not achieved in ____ place APU master switch in OFF position.

25% N2 , 25 Seconds

Fuel enters Primary Fuel Manifold at what percent of N2?

6.5%

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

Acceleration Limit in Warm conditions is?

45 Seconds

Acceleration Limit in Cold conditions is?

60 Seconds

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%

Starter cut-out speed is approximately what percent of N2?

50%

The following light comes on once between 95-100% N2 RPM.

APU PWR Avail Light

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

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.

If the APU FUEL Press LO Light fails to go out, or comes on during APU operation what should you do?

Immediately Shutdown

If APU OIL PRESS LO TEMP HI Light comes on above 95% N2 RPM what should you do?

Immediately Shutdown

When EGT increases w/ out corresponding rise in RPM what should you do?

Immediately Shutdown

APU GEN Fail light remains on after reset, what should you do?

Immediately Shutdown

APU is still using BATT PWR after 95% N2 RPM what should you do?

Immediately Shutdown

What happens when the Fire Bite switch is pushed?

APU will auto-shutdown

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.

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.

Before applying electrical power what must always be checked?

The CAC Compartment for evidence of fuel vapors.

What must be activated in order for APU fire detection system to work?

APU Battery Switch must be in BAT position

What should battery voltage be at prior to APU start?

26 VDC

APU will not shutdown w/ master switch in OFF position unless ISOL valve has been CLOSED postion for ____.

90 Seconds

What is STANDBY Mode used for?

Troubleshooting purposes or when Normal mode is inoperable.

Switching from Normal mode to Standby mode during operation can damage what component?

Electronic Control Box

When all pneumatic loads are removed from APU what should be done?

APU ISOL Valve should be in off position

If APU tail cone is rotated in the down position what should be installed?

APU Exhaust Deflector

When flight compartment electrical buses are not required what should be used?

Ground Electrical Buses

What should be pressed in order to check if AGENT 1, AGENT 2 LOW lights come on?

ALL TEST switch

#2 Afto Tank Boost pump ON, minimum fuel for APU Operation not less than _____ in #2 Tank.

1000Ibs

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

In order to prevent _________ shutdown place fuel pump switch to ON.

Inadvertent

Cabin Outflow valve must be in what position?

Open or AUTO

If battery power is not available then most annunciator lights and oil quantity will be unavailable. True or False?

True

Iso Valve takes how long to close and how long to open?

90 seconds to Open, and 60 to close.