ATA 70 - Engines

Question 1

EGT Limits for Engines

Answer 1

TOGA/FLEX/DERATE :
AEO - 5 min - 890 °C
OEI - 10 min - 890 °C

MCT :
Pas de limitation temps - 855 °C

START (on ground = in flight) - 725°C

Question 2

Max N1/N2 speeds ?

Answer 2

N1 : 102%

N2 : 105%

Question 3

Mini oil qtt Engines

Answer 3

9.5qt + 0.5qt/h

Question 4

Oil temperature engine

Answer 4

Maximum continuous temperature 140 °C
Maximum transient temperature (15 min) 155 °C
Minimum starting temperature -40 °C
Minimum temperature before takeoff -10 °C

Question 5

Mini Oil Pressure

Answer 5

13 PSI

Question 6

Starter Engine

Answer 6

• A standard automatic start that includes up to three start attempts, is considered one cycle
• For ground starts (automatic or manual), a 20 s pause is required between successive cycles
• A 15 min cooling period is required, subsequent to four failed cycles
• The starter must not be run when N2 is above 20 %.