AUX/EISIS Flashcards
How long does it take to recharge the accumulator?
Approx. 90 seconds required for backup pump to recharge accumulator
- What is the minimum psi the APU accumulator must have?
2800 psi
- If the APU OIL HOT caution appears, how much time should you allow for cooling?
30 minutes
- What would you do to get outside air into the cockpit?
Turn on the vent blower
- How long of a delay is there when powering the APU?
3 to 5 seconds
- What are three heated air sources for the aircraft on the ground?
Bleed air from the engine, APU, external source
- Describe the fire detectors:
Solid state photoconductive cells that react to infrared radiation
- If there is no AC power available, you cannot fight a fire on what engine?
2 engine
- The windshield wipers slow down at airspeeds greater than what?
20 KTS
- If ice is allowed to accumulate, shedding of the windshield anti-ice may enter the engine
inlets and result in?
FOD and/or FLAMEOUT
- The maximum weight that may be suspended from a cargo hook is?
9,000 lbs
- What are the 3 modes of release?
Normal, manual, and emergency
- The landing gear will absorb up to how many feet per second?
39 fps
- How many quarts does the oil reservoir contain?
3 US quarts
- What does the Electronic Sequencing Unit do?
It provides automatic starting and continuous operational monitoring
What does the APU accumulator have that can be used to recharge the accumulator if it is
not at the minimum of 2800 psi?
Hand pump
- The purpose of the APU is to?
Provide a pneumatic air source and an electrical power source
If the APU is the sole source of power the ____and ____________can’t be used
simultaneously.
Windshield anti-ice, back up pump
19. The brake wear indicator provides a \_\_\_\_\_\_\_\_\_\_ means of checking the level of wear on the brake pads (pucks)?
Visual
The two external components that provide display information to the EISIS are:
ADC and magnetometer
The BATTERY STBY INST switch is locoted where in the cockpit?
Upper Console
The ESIS battery should supply power to the instrument for at least:
30 min
A beeping tone can be heard when the aircraft is on the ground with AC power removed if the BATT STBY INST switch is in which position?
ARM
What are the components of the AVCS?
NR Speed Sensor Electronic unit Active vibration control computer 3 force generators 10 accelerometers
The normal Nr operating range for the Active Vibration Control system is __Nr to __Nr?
90%, 105%
Where is the AVCS control switch located?
Overhead Console
The FMS can be accessed to check the ___ or initiate a ___ of the AVCS
Status, Built In Test (BIT)
At what NR does AVCS INOP disappear
by 90%
How does AVCS reduce helicopter and cabin vibrations?
By mechanically generating additional airframe vibratory loads out of phase with the main rotor induced 4 per rev vibrations
What is the function of the Electronic Unit
Converts AVCC data into analog drive commands and sends the data to the appropriate force generators (FG’s)
The AVCS INOP advisory illuminates in flight to indicate
Total failure of AVCS
