System Malfunctions and Emergency Procedures

Question 1

Define detonation and pre-ignition.

a. What should you do if either are suspected?

Answer 1

• Detonation - uncontrolled firing of the fuel/air mixture within a cylinder. Usually caused by increased engine temperature or lower grade fuel.
• Pre-ignition - Occurs when the fuel/air mixture ignites prematurely. Usually caused by a residual hot spot in the combustion chamber, often created by a carbon deposit on a spark plug.
  a. Discontinue the flight ASAP, as they can cause engine damage. Also try

Question 2

What should you do if you get a high RPM drop (>175) during magneto check during run up?

Answer 2

Run high RPMs for 1-2 minutes, lean the mixture towards peak EGT, then recheck.

Question 3

What should you do following an engine fire on the ground?

Answer 3

• If the engine doesn’t start - continue cranking to suck flames back into the engine
• If engine does start - run for another minute, then shut down and inspect the damage

Question 4

What is the minimum altitude you can descend to during a simulated emergency descent?

Answer 4

500ft AGL

Question 5

What is CFIT?

Answer 5

Controlled flight into terrain. Can be caused by poor visibility or poor situational awareness

Question 6

If the vacuum system fails, what 2 instruments would fail?

Answer 6

Attitude indicator and heading indicator