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Random Bournemouth > Tech Notes > Flashcards

Tech Notes Flashcards

1
Q

How long does the Emergancy battery power to th AH and flood lights

A

1.5 hours

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2
Q

How long can the starter be engaged for?

A

10 seconds max

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3
Q

Stal Ht Fail on the ground

A

No dramas on the ground

Indicates over heating

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4
Q

If both alternators fail how long does the main battery provide power for?

A

30 mins

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5
Q

When does the check gear caution message display?

A

When either ldg flap selected or One lever less than 25%power and the gear is not down and locked

Have to switch off with OEI

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6
Q

Flap Positions and Lights

A

Up 0 deg green
App 20 Deg white
Ldg 42 deg white

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7
Q

What prevents inadvertent gear retraction on the ground?

A

Electrical Squat Switch

Prevents hydraulic valve from switching

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8
Q

What is the min RPM for feathering?

A

When the master switch is turned off. The accumulator valve closes and the electric governor valve opens. Allowing oil to escape. If the RPM is above 1300 the prop will feather. If below the start lock will prevent the prop from feathering

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9
Q

Advantages of wood propellers

A

Light
Less prone to vibration
Quicker to respond to rpm changes

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10
Q

ECU test operation

A

Power idle rpm below 900 press test
- ecu A to b back to A

Power above idle and above 900 rpm
-ECU caution message displayed

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11
Q

Oil systems and grades

A

Engine and turbo charger

  • Shell Helix ultra 5w40 synth API SJ/CF
  • Aero Shell 10W40 Diesell oil

Gearbox and prop gov unit

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12
Q

Why is there an inter cooler just after the compressor on the turbo charger system

A

To increase engine efficiency by cooling the air after it has been heated by the compressor

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13
Q

What do the magenta line on the altimeter and ASI indicate?

A

Trends predicting 6 seconds

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14
Q

Correct tyre pressure

A

Nose - 6bar

Main - 4.7 bar

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15
Q

De Icing

A

30 litres
2 pumps

Windshield separate system

Low level 10 litres
-45 mins in norm mode

Min 22 lites in known icing
- 1.5 hours in norm

Norm

  • 30 seconds on 90 off (both pump )
  • 2.5 hours

High

  • continuous (1 active pump) selected by selection
  • 1 hour
Max 
- switches both pumps on for 2 mins 
-switch’s on the other pump that is not selected for 2 mins in Addition to high mode
- max 30 mins 
-
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16
Q

Press De ice Annun Test

Alternate

Windshield

A

De Ice lo level illuminates
120 seconds pres lo illuminates

Connects pump 2 directly to RH bus bar

5 seconds continue independent of system

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17
Q

How long and wide is the DA42?

A

Span 13.42m

Length 8.56m

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18
Q

What is a marker signal?

A

Light and sound signals giving distance from the runway

Outer marker(faf)

Middle marker

Inner Marker

Being replaced by DME with Localiser

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19
Q

Audio panel

Hi Sens

Pa spkr

Com 1/2

A

Select to increase the sinsivity of marker beacon

Pa - headsets

Spkr - cabin speaker

Split com

Com mic - active tranciver

Com receiver only

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20
Q

Pages available on the MFD?

A

Map
Waypoint
Auxiliary
Nearest

Flight plan (accesses by button)

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21
Q

What does pressing in the FMS on the MFD do?

A

Allows you to use the cursor

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22
Q

How do you quickly get to the Nav map page?

A

Hold down CLR button

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23
Q

What’s dangerous about using the landing gear operation with OEI?

A

High electrical demands

24
Q

What happens if the the altimeters are not within 50ft on decent.

A

Use the lowest

25
Q

Why are you unlikely to get DME results on testing?

A

DME is electronically altered to read zero at the rwy threshold

26
Q

Recommended derive frequencie

A

112-118 VOR only

113.40 SAM detained by 5hz

27
Q

NG power plant

A

Austrian Engine AE300
Max power 123.5kw at 2300rpm
Max continuous power 113.6kw at 2300rpm

28
Q

Rpm after start

A

Must remain at idle for 2 minutes then max 1400rpm until oil temp is in the green

29
Q

Thielert 125 unfeathering speed and height

A

2 litres 99kw

8000ft max
110-120 kts

30
Q

When does the variable stop engage?

A

Both engines more than 20% and flap to land and

31
Q

Nominated aircraft grounding point

A

Metal section of the steps

32
Q

For the Austro E4-c what is the maximum powers restriction?

A

No more than 90% for longer than 5 minutes

33
Q

What’s the purpose of a check relief valve?

A

To allow air to enter the tank

34
Q

How is the bypass of the exhaust gases controlled

A

A sensor located on the outlet of the compressor sent to the FADEC

35
Q

How many air sources feed the turbocharger

A

Two

1 filtered ram air
2 unfiltered warm air from engine cowling

36
Q

What are the approved anti ice fluids?

A

Al-5
Aero shell compound 7

Glycol based

37
Q

Oil grades

A

Engine

  • shell heliex ultra 5w40
  • aero shell 10w40

Gearbox
-shell EP 75w90

38
Q

Tructure

A

Semi monocoque
Skin takes some of the load
CFRP
GFRP bulkheads and stiffners

39
Q

If selecting alt static what other measure must you take?

A

Cabin ventilation must be closed

40
Q

What are we locking for when checking the ailerons?

A

Roll pins which secure the hinges

Locking varnish in nuts show there hasn’t been excessive movement

41
Q

What do the glow plugs do?

A

Pre heat the cylinder as disel requires no spark

42
Q

What controls the route of the coolant?

A

Thermostatic valve assess the temperature

43
Q

Propeller pitch’s

A

Fine

Centrifugal twisting moments
Oil from CSU

Coarse
Counter weight producing CTM
Spring in propellor hub

44
Q

How is oil pressure regulated?

A

Electrically operated governor valve in the csu controlled by FADEC

45
Q

What prevents back flow of oil in negative g flight and maintains oil pressure to csu .

A

Capillary tube

46
Q

Feathered position
Start lock

Pitch’s

A

Approx 81

Approx 15

47
Q

If the ECU malfunctions what could happen to the prop?

A

Could remain stuck at the start lock position .

Affected prop will produce negative thrust
Will over speed if power is applied

48
Q

Engine Master on

A

Energises the associated engine start circuit which:

  • powers the associated glow plug
  • l or r engine glow advisory alert
  • opens unfeathering accumulator shut off valve
  • energises the engine and propellor control circuits
49
Q

Fuel pump system

A

Lower pressure fuel pump draws fuel from tanks to high pressure fuel pump for the fuel injection system

50
Q

What is a check and pressure relief valve?

Where are they located

A

Check valve alows air into the fuel tank
Pressure relief

Underside of the wing tips

51
Q

Fuel for use in CTc ops

A

Jet A1

52
Q

Fuel measuring

A

X2 capacitance fuel sensor each wing

53
Q

Fuel drain locations

A

1 just outboard of the engines (inboard of the fuel tanks)

1 below engine in the sediment drain bowl attached to the LP fuel filter

54
Q

What is the minimum radius of turn using brakes?

A

6m

30 degrees nose wheel steering
52 degree with brakes.

55
Q

Alternators

A

Supply 28v dc

56
Q

Pumps for anti ice

A

2 pumps for aero foil and prop

2 separate pumps for windshield

Located in the nose

57
Q

Why might the de ice pressure warning remain?

A

If high mode is selected and ambient temp is above 10deg

Random Bournemouth (20 decks)

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