#7

Question 1

Actions to take against Pre-igniton

Answer 1

Pre-ignition corrective actions would be to promote cooling by reducing power, reduce climb rate, enrich fuel/air mixture (fuel can cool), open cowl flaps if available

Question 2

What Lack of RPM drop in Magnetos could mean

Answer 2

If you lack RPM drop in magnetos when switching to singular magnetos that could mean a failure in the ground wire for the magneto that is supposed to be turned off, or the magneto that is supposed to be turned off never turned on.

Question 3

Standard Callout Technique

Answer 3

Callouts help assist maintaining situation awareness

Question 4

Cautionable Ammeter Indications Positive Charges

Answer 4

Positive Charges

After Starting - Power from Battery is being replenished by alternator. Full Positive Deflection indicates the starter is still engaged and to shutdown the engine.

During Flight - A faulty voltage regulator is causing the alternator to overcharge the battery. Reset the system, if it continues end flight as soon as possible

Question 5

Cautionable Ammeter Indications Negative Charges

Answer 5

Negative Charge

After Starting - It is normal during start but it could also mean the battery isn’t being charged and the alternator is not working or there is an overload in the system.

During Flight - alternator is not functioning or an overload exists in the system. The battery is not receiving a charge. (The master switch could be turned off, or the alternator circuit was tripped)

Question 6

Continuous Discharge Ammeter in Flight

Answer 6

The alternator has quit producing a charge, so the alternator circuit breaker should be checked and reset if necessary. If this does not correct the problem, the following should be accomplished:

• The alternator should be turned off; pull the circuit breaker
• All electrical equipment not essential to flight should be turned off
• The flight should be terminated and a landing made as soon as possible

Question 7

Continuous Charge Ammeter In Flight

Answer 7

Continuous Charge for a period of time can cause the battery to overheat and evaporate electrolytes at an excessive rate. A possible explosion of the battery could result

(Protection provided by overvoltage sensor will shut down alternator if detected) but If continuous charge occurs:

• Turn off Alternator; pull the circuit breaker
• All electrical equipment not essential should be turned off
• Flight should be terminated as soon as possible and landing should be made

Question 8

Low Oil Pressure but Normal Oil Temperature

Answer 8

Low oil pressure could be many problems, most common insufficient oil, a clogged oil pressure relief valve or an oil pressure gauge malfunction could be the culprit. Land as soon as possible.

Question 9

Partial loss of engine power in Flight Procedures

Answer 9

Establish and maintain suitable airspeed (usually best glide). Then select an emergency landing spot within gliding distance. If time allows Check Carb heat, Check fuel quantity, Check fuel selector valve position, Check mixture control, Check primer, Check all three magneto positions (BOTH, R, L)

Question 10

Engine Fire in Flight Procedures

Answer 10

Set mixture idle cutoff, Set fuel selector to “OFF”, Turn Master switch “OFF”, Set the cabin heat and air vents to “OFF”; leave the overhead vents “ON”, establish an airspeed of 100 Knots IAS and increase the descent, if necessary, to find an airspeed that will provide for an incombustible mixture, Execute forced landing procedures