DA40 NG System Failures

Question 1

You notice the Oil Temperature has reached the Red range.

Answer 1

• Reduce Power
  -Increase Airspeed
• If that does not resolve the issue make an immediate landing

** If Oil Pressure is also in the Red range assume loss of engine oil and make an immediate landing.
** Prepare for Engine Failure In Flight.

Question 2

You notice the Coolant Temperature is in the Red range

Answer 2

During Climb
- Reduce power by 10%
- Reduce airspeed by 10kts
- If that does not work, lower power as far as possible

During Cruise
- Reduce Power or Increase Airspeed

** If COOL LVL caution is also displayed, assume a loss of coolant and make an immediate landing.
** Prepare for Engine Failure In Flight.

Question 3

You notice Oil Pressure is in the Red range

Answer 3

• Reduce Power
• EXPECT loss of Oil

** Make an immediate landing.
**Prepare for Engine Failure In Flight.

Question 4

You notice the Gearbox Temperature is in the Red range

Answer 4

• Reduce power
• Increase Airspeed

** If this does not return temps to the Green range make an immediate landing.
** Prepare for Engine Failure In Flight

** At high OAT, low Airspeeds, and High Power settings, high GB temps is not necessarily a major problem unless they do not return to GREEN levels

Question 5

You notice the L/R Fuel Temperature is in the Red range

Answer 5

• Reduce Power
• Increase Airspeed
• Check if L Tank is low (if so, transfer)
• Low L tank fuel levels can cause temps to increase.

*At high OAT, low Airspeeds, and High Power settings, high Fuel Temps are not necessarily a major problem unless they do not return GREEN levels.
** If they do not return to Green, make an immediate landing

Question 6

You notice Low Fuel Pressure or the FUEL PRESS warning.

Answer 6

• Check Fuel Quantity
• Check Fuel Valve Normal
• Turn Fuel Pumps on

If FUEL PRESS warning remains
- Fuel Valve to Emergency
- Fuel Pumps OFF

** If FUEL PRESS warning remains, make an immediate landing
** Prepare for Engine Failure In Flight

Question 7

You notice the Alternator Amps are too high (above 70A)

Answer 7

• Turn off as much equipment as possible
• If still unresolved land as soon as possible

**Consumption of electrical power is too high OR Faulty wiring/Equipment

Question 8

You notice an ALTERNATOR FAIL Warning

Answer 8

• Check Circuit Breakers
• Turn Essential Bus ON
• Turn off as much equipment as possible
• The Batteries will last you about 30 Mins*

** ECU may fail, an immediate landing.
** Prepare for Engine Failure In Flight

*If you cannot land within 30mins, Turn ON the EMERGENCY Switch (powers backup Attitude Indicator and Flood Light)

Question 9

There has been a Complete Electrical Failure

Answer 9

• Check Circuit Breakers
• Essential Bus ON

If there is still no electrical power..

• Emergency Switch ON
• Use Flood light if needed.
  *Use power lever and engine noise to gauge power setting

** Land immediately
** Prepare for Engine Failure In Flight

Question 10

What is the Emergency Squawk for Lost Comms? What are the other emergency squawks?

Answer 10

7600 - Lost Comms
7500 - Hijack
7700 - Emergency

Question 11

You experience a loss of power and suspect Icing

Answer 11

1. Turn around and descend for warmer
   air
2. Pitot heat on
3. Alternate air on (induction icing)
4. Cabin heat on
5. Cabin air defrost
6. Higher power setting to keep ice off
   the prop (change power setting
   periodically)