70 Engines

Question 1

Oil quantity required?

CEO and NEO

Answer 1

9. 5 qt + 0.5 qt/h

10. 6qt + 0.45qt/h

Question 2

When does ENG 1(2) OIL LO PR appear on CEO?

Answer 2

Oil pressure <13psi

Question 3

N1 and N2 vibration advisory limits?

Answer 3

> 6 units N1

>4.3 units N2

Question 4

Oil temperature advisory at?

Answer 4

> 140 degC

Question 5

When does ENG 1(2) HI OIL TEMP show?

Answer 5

> 155 degC or > 140 degC for 15 mins

Question 6

What are the engine oil pressure advisory limits?

Answer 6

> 90psi or <16psi

Question 7

Maximum time on TOGA for one engine?

Answer 7

10 minutes (also dictates maximum single engine acceleration altitude)

Question 8

Max time on TOGA two engines?

Answer 8

5 minutes

Question 9

Maximum N1 limit CEO? And NEO?

Answer 9

104% CEO

101% NEO

Question 10

Maximum N2 limit CEO? And NEO?

Answer 10

105% CEO

116.5% NEO

Question 11

What is Tmax flex? And what are the limits for each type?

Answer 11

Highest flex temperature for derated takeoff.

A319 ISA+60 (75degC)
A320NEO ISA+55 (70degC)
A320CEO ISA+53 (68degC)
A321 ISA+52 (67degC)

Question 12

Minimum flex temps for takeoff?

Answer 12

44degC for A320 (ISA+29)

45degC for A319 (ISA+30)

Question 13

How do you calculate the Take Off Distance Required reduction possible due to a flex temp take off?

Answer 13

(Tflex - Toat)/10 * 3

Essentially, 10% of the difference between flex temperature and outside air temperature multiplied by 3.

So flex temp of 55degC, OAT of 15degC, TODR of 2000m…

(55-15)/10 * 3 = 12% so 1760m is actual TODR

Question 14

Minimum oil temperature for start?

Answer 14

-40degC (same for NEO)

Question 15

Minimum oil temperature for take off?

Answer 15

-10degC (or 19degC for NEO)

Question 16

How many start attempts on CEO?

Answer 16

4 with 20 second pause between (then 15 minute cooling period)

Question 17

How many start attempts on NEO?

Answer 17

3 with 60 pause between attempts (then 15 minute cooling period)

Question 18

If CLOG appears on the ENGINE SD page next to the F. USED indication, why and where is the clog?

Answer 18

There is excessive pressure across the fuel filter

Question 19

If CLOG appears on the ENGINE SD page next to the oil PSI indication, why and where is the clog?

Answer 19

There is excessive pressure across the main oil scavenge filter

Question 20

Does the NEO have any differences in engine anti ice?

Answer 20

Yes

ENGINE SD page shows CORE and BOOST functions.

Where CORE indicates Variable Bypass Valves (VBVs) are used to provide hot air to engine core to prevent ice crystals

And BOOST uses bleed air from 7th stage of HP compressor to improve start performances and provide hot air to the booster

Question 21

Which additional temperature does the NEO have on the ENGINE SD page?

Answer 21

Nacelle temperature