Chapter 5.4 - Engine Emergencies Flashcards
Name five common causes of rough running in an Engine?
- Uneven Mixture Distribution.
- Carburettor Icing.
- Detonation.
- Fuel Contamination.
- Backfiring.
Uneven Mixture Distribution can be caused by what (4)?
- Loose Induction Manifold.
- Carburettor Icing.
- Carburettor Malfunction.
- Engine too cold.
How does a Pilot treat Carburettor Icing?
By apply Carburettor Heat.
A sudden Engine roughness or misfiring is usually evidence of a malfunction what?
Magneto.
How can a Pilot identify which Magneto is malfunctioning?
Switch BOTH to either L or R on the Ignition Switch.
Once the malfunction Magneto has been identified, what cause of action should a Pilot take (2)?
- Reduce Power.
- Enrich Mixture Control.
What can cause Engine roughness followed by a sudden loss of power?
Fuel Contamination.
How can a Pilot check for Fuel Contamination during Flight?
By switching between Fuel Tanks to see if roughness has stopped.
Backfiring usually occurs because of (3)?
- Over-Lean Mixture.
- Pre-Ignition.
- Late timing of the Spark.
What cause of action should a Pilot take when Backfiring occurs (2)?
- Determine if a richer mixture produces smoother Engine operation.
- If not, land at the nearest Aerodrome.
Afterfiring usually occurs because of (2)?
- Over-Rich Mixture.
- No Ignition.
What evidence can a Pilot tell if the Engine is Afterfiring (2)?
- Bright Orange Flame.
- Lots of Black Smoke.
If Carburettor Icing is suspected and the Engine is still rough after the application of Carburettor Heat, what action should a Pilot take (3)?
- Smoothness of the Fuel Mixture Control.
- Magneto Malfunction Check.
- Fuel Contamination Check.
As well as Engine roughness, what four factors can also lead to Engine Failure?
- Fuel Starvation.
- Fuel Exhaustion.
- Loss of Oil Pressure and High Oil Temperature.
- Failure of the Propeller.
What is Fuel Starvation?
The flow of the Fuel from Tank to Engine is affected.
True or False. With Fuel Starvation an Aircraft doesn’t have any Fuel remaining?
False. A Fuel Tank can still be full when Fuel Starvation occurs.
Name six common causes of Fuel Starvation?
- Blocked Fuel Tank Vents.
- Incorrect Tank Selection.
- Selecting Fuel to OFF.
- Water Contamination.
- Blockage in Supplying Fuel.
- Misuse of Mixture Control.
What is Fuel Exhaustion?
When there is no Fuel left in the Fuel Tanks.
True or False. With Fuel Exhaustion an Aircraft doesn’t have any Fuel remaining?
True.
Name four common causes of Fuel Exhaustion?
- Miscalculating Fuel Requirements.
- Failure to Check Fuel Tanks before Flight/after Refuelling.
- High Fuel Consumption Rate.
- Fuel Gauge Malfunction.
Name two causes of inadequate Lubrication?
- Low Oil Pressure.
- High Oil Temperature.
Fluctuating Oil Pressure is an indication that the Oil quantity is what?
Very Low.