Engine Failure and Airstart

Question 1

What annunciators will you expect to see for an engine failure?

Answer 1

GEN
OIL PX
OBOGS FAIL
FUEL PX

Question 2

How fast will N1 indicate 0%

Answer 2

Within 5 seconds

Question 3

At what % does N1 not indicate any speeds?

Answer 3

8%

Question 4

What 3 conditions must be met in order to attempt an engine restart after a failure?

Answer 4

No:
Fire
Frozen
FOD

Question 5

At 200 knots, how much altitude can you expect to gain from a proper zoom (engine out)?

Answer 5

600-900 ft

Question 6

Below what airspeed are zoom effects negligible?

Answer 6

150 KIAS

Question 7

What pitch angle should you achieve for a zoom-to-eject?

Answer 7

20 degrees

Question 8

How do you determine if there is evidence of an engine fire?

Answer 8

Fire light and/or:

Fluctuating oil/hydraulic/fuel px
Excessive ITT
Visual Indications
Erratic engine operation
Roughness or vibrations

Question 9

How do you determine if your engine is frozen?

Answer 9

If you are showing N1 or hydraulic pressure it is not frozen

Question 10

What must you use caution around checking when determining if your engine is frozen?

Answer 10

Oil pressure. The oil pressure gauge may read up to 4psi with or without the engine seized.

Question 11

How many feet will be lost during an airstart attempt and how long will it take?

Answer 11

1200 ft

Approx 40 seconds

Question 12

Should you attempt an airstart on a minimum glide profile?

Answer 12

Be warned against doing it. Consideration should be given to not attempt an airstart if on a minimum glide profile because repeated airstart attempts will result in excessive altitude loss.

Question 13

What are the two airstart envelopes?

Answer 13

Sea Level to 15,000: 125 KIAS to 200 KIAS

15,001 to 20,000: 135 KIAS to 200 KIAS

Question 14

At what altitude should you not attempt an airstart?

Answer 14

Any altitude below 2,000 ft AGL

Question 15

Why must the PCL be OFF during an airstart attempt?

Answer 15

To ensure proper starter, boost pump, ignition and PMU operation during the airstart

Question 16

When must you see N1 rise during an airstart?

Answer 16

Within 5 seconds, if not, discontinue the start

Question 17

When must you see ITT rise during an airstart?

Answer 17

Within 10 seconds, if not, discontinue the start

Question 18

When will the prop unfeather and accelerate to operating RPM?

Answer 18

Approximately 20 seconds after N1 reaches 45%

Question 19

When turning the BOOST PUMP on after a successful airstart, what must you do? Why?

Answer 19

Hack the clock or note the the time.

Continuous operation with the BOOST PUMP siwtch on will cause damage to the engine-driven low pressure fuel pump. You must notify maintenance of the duration of flight with the boost pump on.

Question 20

After an airstart, what type of amperage readings can you expect?

Answer 20

Above +30 amps

Question 21

How fast can the starter drain the battery if left in manual?

Answer 21

10 minutes

Question 22

What is the procedure for initiating a zoom climb above 150 KIAS

Answer 22

2G pull up to a 20 degree climb angle until approximately 20 KIAS above desired glide speed and then initiate a 0 to +0.5 G push-over to capture the desired glide slope

Question 23

What is the purpose of putting the PCL to OFF during an engine failure in flight?

Answer 23

To fully feather the prop

Question 24

At what altitude should you not delay a decision to eject?

Answer 24

2000ft

Question 25

At what altitude have air starts only been demonstrated at?

Answer 25

20,000 ft MSL’

Question 26

After an air start, what must you do to ensure that the generator comes back online?

Answer 26

Setting the STARTER switch to NORM

Question 27

When should you refer to the PMU OFF airstart checklist?

Answer 27

If a PMU FAIL annunciation is illuminated

Question 28

During a PMU OFF restart, when will ITT begin to rise and peak?

Answer 28

After fuel flow is indicated at 75-80 pph

Question 29

What is the most critical pilot action during the PMU off airstart?

Answer 29

PCL movement while monitoring fuel flow, ITT, and N1 acceleration