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RIQ > Electrics and Fuel Review SYS108 > Flashcards

Electrics and Fuel Review SYS108 Flashcards

1
Q

Possible Hot Start Indications

A

High/Rapidly Rising ITT
Lower N1
Lower Np

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2
Q

Possible Hot Start Causes

A

PMU Fail
FMU Fail
Incorrect air/fuel Mix
Low Batt

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3
Q

Possible Hung Start Indications

A

Slow Rising ITT
Lower N1
Lower Np

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4
Q

Possible Hung Start Causes

A 
PMU Fail
FMU Fail
Incorrect air/fuel Mix
Ignition System Fail
Starter Fail
Low Battery
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5
Q

Possible No Start Indications

A

No ITT Indications
Lower N1
No Np Indication
No torque indication

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6
Q

Possible No Start Causes

A 
PMU Fail
FMU Fail
Starter Fail
Ingnition System Fail
Incorrect air/fuel Mix
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7
Q

Initial Indications of Engine Fail

A

Loss of power/airspeed
Rapid decay of N1, Torque, and ITT
MASTER WARN lights and Tone
Prop moves to Feather

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8
Q

Possible Engine Fail Causes

A

Fuel Starvation
Mechanical Fail
Compressor Stall

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9
Q

Possible PMU Fail Indications

A

Power Step Change
PMU FAIL and PMU STATUS annunciators
MASTER WARN Light
Aural Tone

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10
Q

Possible PMU Fail Causes

A

System Fail

System Malfunction

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11
Q

Possible Uncommanded Power Changes/Loss of Power Indications

A

Reduction in Power/Thrust
Lower than expected fuel flow
An uncommanded decrease in N1
High raw ITT (RITT) on AEDD

With oil/engine/fuel system contamination:
Power Surges
Uncontrollably High Power

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12
Q

Possible Uncommanded Power Changes/Loss of Power Causes

A

Engine Rollback

Oil/Engine/Fuel System Contamination

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13
Q

Possible Uncomanded Feather Indications

A 
Rapid Loss of power
High Torque
Lower Np
Possible PMUFAIL/PMU STATUS annunciators
Engine Vibration Engine Noises
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14
Q

Possible Uncomanded Feather Causes

A

Feather dump solenoid malfunction

Loss of oil pressure to prop. pitch control mechanism

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15
Q

Possible Prop Sleeve Touchdown Indications

A 
Np Fluctuations
Increasing Torque
Decreasing thrust
Engine Vibrations
Possible SHIP detector warning light
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16
Q

Possible Prop Sleeve Touchdown Causes

A

Loss of oil pressure to prop. pitch control mechanism from momentary contact between oil transfer sleeve and prop. shaft

17
Q

Possible Engine fire in flight indications

A

FIRE annunciator
MASTER WARN light
Aural Tone

F.E.V.E.R

18
Q

Possible Engine fire in flight Causes

A

Fuel or Oil Leakes

Fire getting outside the engine

RIQ (20 decks)

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