Engine Start

Question 1

At what NH should Condition Lever be moved to START/FEATHER?

Initial Fuel Flow?

Answer 1

10-19% NH,
(10% NH if ITT<50°, 15% NH if ITT >50°)

Fuel flow 40 ± 20Kg/hr

Question 2

Verify increase in oil pressure between __% NH and __% NH?

Answer 2

Between 35% NH and 50% NH.

Question 3

Confirm starter disengagement at __% NH by?

Answer 3

At 63% NH by -
* ENGINE START SELECT switch returns to null position.
* SELECT light . . . . . . . OFF
* GEN Load Meter indicates zero,
or positive for first engine start.

Question 4

Normal idle NH?

Answer 4

75 ± 3%

Question 5

Indications that Starter has failed to cut-out following an engine start?

Answer 5

START Light Remains Illuminated or a Negative Load on the Generator Load Meter.
(QRH procedure)

Question 6

Aborted Engine Start memory items?

IMMINENT OVER TEMPERATURE, HUNG START or FAILURE TO LIGHT UP
(WITHIN 10 SECONDS)

Answer 6

1. Condition Lever ……………………….. Fuel Off
2. IF ITT does not decrease immediately
   Pull Fuel Off handle ………………….….. Pull
3. Ignition (affected engine)…………..…… Off
4. Motor engine for a minimum of 15 seconds
5. Start Select Switch …………………..……. Off

Question 7

Minimum MAIN BATT voltage for start?
(To maximise battery and starter/generator life)

Answer 7

22V
(Applies to Battery, GPU assisted, APU assisted and Cross Generator assisted starts. This applies to both the first and second engine.)

Question 8

To maximise battery and starter/generator life, wait until MAIN BATT load is below ___ before starting second engine.

Answer 8

0.4

Question 9

Engine Start - Tailwind Limits?
* GPU assisted start - __kt
* APU or Cross Generator assisted start - __kt
* Battery start - __kt

Answer 9

• GPU assisted start - 35kt
• APU or Cross Generator assisted start - 20kt
• Battery start - no tailwind permitted.

Question 10

Cross generator start procedure?

Answer 10

After first engine start (GPU available):
1. DC CONTROL EXT PWR switch . . . . . . . . . . . . . OFF
2. MAIN BUS TIE . . . . . . . . . . . . . . . . . . . . . . . . . . . . TIE
Check GEN 2 is online.

Commence aircraft pushback and start second engine.
After second engine start:
3. MAIN BUS TIE . . . . . . . . . . . . . . . . . . . . . . . . . . . .OFF

Question 11

Max starting ITT?

Answer 11

840°C to 900°C for 12 seconds.
900°C to 950°C for 5 seconds.

Question 12

Starter Cranking Time Limits?

Answer 12

1st 1 minute on - 2 minutes off
2nd 1 minute on - 2 minutes off
3rd 1 minute on - 30 minutes off