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AS350B2 > AS350B2 Emergencies > Flashcards

AS350B2 Emergencies Flashcards

1
Q

Autorotation procedure following engine failure

A

Set low collective pitch

Monitor and control NR (320-430)

Establish 65 kts airspeed

FFCL Closed

Boost pumps, generator OFF

65’ flare

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2
Q

What is the power off NR limitations?

A

320 minimum
430 maximum

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3
Q

When does the low rotor horn sound?

A

below 360 NR

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4
Q

When does the high rotor horn sound?

A

above 410 NR

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5
Q

6 Indications of an engine failure

A

Jerk in yaw axis

Drop in NR (sound below 360 NR)

Torque at zero

Ng falling off to zero

GEN light

Engine oil pressure drop and warning light

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6
Q

Aircraft suddenly yaws RIGHT indicative of….

A

Engine failure

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7
Q

Aircraft suddenly yaws LEFT indicative of ….

A

T/R failure

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8
Q

What are the indications of a large drop in fuel flow rate?

A

Same symptoms as for complete engine failure, but after a few seconds the Ng will STABILIZE at a low rpm value (less than 70%)

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9
Q

What are the required pilot actions if a large drop in fuel flow rate occurs?

A

Establish autorotation profile, IAS 65 kts

Advance FFCL to emergency sector

Control engine speed to 70% NG

Increase collective to bring NR to 350

Increase FFCL until NR is 380

Trim collective and FFCL to hold level flight

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10
Q

What are the indications of an excessive fuel flow rate?

A

NG rises

T4 rises

NR rises

TQ rises

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11
Q

What is the required pilot action if an excessive fuel flow rate occurs?

A

DO NOT REDUCE COLLECTIVE

Reduce FFCL until NR is in middle of green

Continue flight with governor out of action, using collective and FFCL

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12
Q

In an underspeed or overspeed, what is the correct approach path?

A

Low gradient path

IAS 65 kts

Hold NR in upper limit of green arc (394)

Final approach, reduce forward speed without touching fuel control

After touchdown, reduce FFCL before reducing collective pitch

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13
Q

What are indications of surging?

A

Hunting of the rpm, torque and t4

Jerks in yaw axis

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14
Q

What are the required pilot actions if surging occurs?

A

Check fuel pressure and engine oil pressure

If fuel pressure and engine oil pressure are correct, reduce fuel flow slightly to leave governed range.

If surging still persists, LAND AS SOON AS POSSIBLE

Shut down the engine if there is a tendency to divergence

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15
Q

What are the required pilot actions if there is an engine fire during start up?

A

FFCL to closed

Apply rotor brake if necessary

Boost Pumps - OFF

Crank engine for 10 seconds

Battery off

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16
Q

FIRE light in flight

A

Enter autorotation

FFCL to closed position

Boost pumps off

Generator off

Switch off electrical master ALL OFF if smell of burning

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17
Q

With the electrical master ALL OFF switch depressed, what do you still have?

A
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18
Q

What are the required pilot actions if there is smoke in the cockpit and the source of the smoke is unknown?

A

Shut off heating/demisting

If smoke does not clear:

Switch off master electrical switch “ALL OFF”

When smell of smoke has disappeared, set all switches to “OFF”, including generator

Reset battery switch to ON

Reset electrical master switch

Switch on the generator, check voltage and current

If everything is normal, switch on systems one at a time until source of smoke is identified

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19
Q

Loss of the tail rotor in power on flight will result with a yaw movement to the ____

A

Left

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20
Q

What are the required pilot actions with a failure of tail rotor in ground effect

A

Bring aircraft to the ground by reducing collective pitch before yaw rate is too high

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21
Q

What are the required pilot actions with a failure of the tail rotor out of ground effect, in hover or at low speed

A

Reduce collective pitch moderately and simultaneously increase speed

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22
Q

What are the required pilot actions with a failure of the tail rotor in forward flight?

A

Reduce the power as much as possible and maintain forward speed (weathercock effect)

Select suitable landing site for steep approach

On final approach, shut down engine and make an autorotative landing

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23
Q

What is required of the pilot if there is a tail rotor control failure? (stuck pedals)

A

Set IAS to 70 kts in level flight

Press HYD TEST, reset HYD TEST after 5 seconds

Make a shallow approach to a clear landing area with slight side slip

Perform run on landing

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24
Q

Landing with stuck pedals is made easier with wind from the _____

A

Right

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25
What does pushing the HYD TEST do in a stuck pedal emergency?
This cuts off hydraulic power to the yaw servo and depressurizes the load compensating servo accumulator
26
Servo transparency will induce an uncommanded cyclic movement to the _____
Right
27
What are the required pilot actions if the aircraft gets into servo transparency?
Reduce severity of the maneuver Follow aircrafts natural reaction Let collective decrease naturally and smoothly counteract the right cyclic
28
If the fuel pressure gauge is reading no fuel pressure, failure is confirmed by the illumination of the ________ light.
FUEL P light If the failure is not confirmed, the faulty item is the fuel pressure gauge - flight may be continued
29
If the fuel pressure gauge is reading low fuel pressure, the failure is confirmed by the illumination of the ____ light
F. FILT light If the failure is not confirmed, the faulty item is the fuel pressure gauge - flight may be continued
30
Engine oil pressure should indicate above the red arc when Ng is above___
85%
31
What actions are required from the pilot when the engine oil pressure is indicating in the red arc during flight?
Test CWP and check that the ENG P light illuminates If light illuminates, check the torque reading. If reading is much too low, land as soon as possible. If reading is accurate, land as soon as practical If light does not illuminate, check the torque reading. If reading is much too low, shut down engine and make autorotative landing. If reading is accurate, land as soon as possible.
32
What are the required actions from the pilot if the engine oil temperature is higher than the maximum specified?
Land if possible, stop engine and check that cooler fan operates If landing impossible, increase speed and fly at reduced power. Fly at approximately 80 kts. The temperature should fall rapidly. If the temperature does not drop, land as soon as possible
33
In the event of an NG indicator failure, do not exceed the maximum authorized _____
torque value
34
In the event of an NG indicator failure, with an OAT below 15 degrees, the T4 is limited to _____ degrees
730
35
In the event of an NG indicator failure, with an OAT above 15 degrees, the T4 is limited to ______ degrees
750
36
In the event of a torquemeter failure, do not let the engine speed to rise above __________
The NG limits posted on the NG placard in the aircraft (varying on PA and OAT)
37
In the event of a T4 indicator failure, comply with the _____ limitations
NG limitations Do not attempt to restart the engine
38
What are the required pilot actions if the NR indicator fails?
Maintain engine torque above 10% Use NF reading for NR Land as soon as practical
39
If the bleed valve flag is visible on the NG gauge, the bleed valve is _____
Open
40
True or False If the bleed valve does not close above the specified NG value, the maximum available engine power is reduced
True
41
The NG values at which the bleed valve opens and closes depends on _____ and _____
temperature and altitude
42
The continuous horn sounds when hydraulic pressure is below ____ bar
30 bar
43
The continuous horn sounds when NR is below ____ rpm
360
44
The intermittent horn sounds when NR is above ____ rpm
410
45
The initial reaction when a pilot hears the continuous horn should be to ______
Lower the collective Slow down
46
The initial reaction when a pilot hears the intermittent horn should be to _____
Increase the collective in order to not exceed 430 rpm
47
The safety speed in the event of a hydraulic failure is _____
40-60 kts
48
What are the required pilot actions in the event of a hydraulic failure?
Maintain angle of bank below 30 degrees Avoid abrupt maneuvers IAS- set 40 - 60 kts Hydraulic cut off switch - off LAND AS SOON AS POSSIBLE
49
What is the required pilot action if the MGB.P light illuminates?
Reduce power LAND AS SOON AS POSSIBLE
50
What is the required action if the MGB.T light illuminates?
Test CWP to see if MGB.P light illuminates LAND AS SOON AS POSSIBLE If MGB.P light illuminated, when on ground check MGB oil level. If level is normal, fly to nearest base.
51
ENG.P
Reduce power Check oil pressure gauge and torquemeter gauge - if gauges are low, shut down engine and carry out autorotation If oil pressure gauge and torquemeter gauges are accurate, land as soon as possible
52
What does a GEN light indicate?
DC Power supply failure/overvoltage detected
53
What are the required pilot actions if the GEN light illuminates?
Test DC Voltage Check position of GEN push button Attempt to reset GEN If light still illuminated, shed least essential consumer circuits, don't let voltage get below 22 volts Land as soon as practical
54
In the event of a generator failure, don't let the voltage get below _____
22 volts
55
What is the required pilot action if the BAT light illuminates in flight?
Monitor voltage Land as soon as practical
56
How much fuel is in the tank when the FUEL light comes on?
less than 60 liters/11%/18minutes
57
What speed should you slow down to if the DOORS light illuminates in flight?
70 kts maximum
58
What does the F.FILT light indicate?
Fuel filter clogging
59
What is the required pilot action if the F.FILT light illuminates?
Reduce power If light goes out, continue flight at reduced power If light remains on, LAND AS SOON AS POSSIBLE
60
What is the required pilot action if the FUEL P light illuminates?
Check fuel pressure: If pressure is normal, only one pump is faulty- continue flight If pressure is zero, both pumps are faulty - continue flight below 5000'
61
When does the FUEL P light illuminate?
When fuel pressure is lower than 0.2 bar on either or both fuel pumps
62
What functions must remain ON when flying on battery only?
Battery Fuel pumps VHF Radio-Nav
63

AS350B2 (4 decks)

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