POWER PLANT

Question 1

THRUST SETTING EGT LIMITS

Answer 1

OPERATING CONDITION TIME LIMIT EGT LIMIT
TAKEOFF and GO-AROUND 5 min 635 °C
ENGINE FAILURE 10 min 635 °C
MCT STARTING Unlimited 610 °C

Question 2

ENGINE OIL TEMPERATURE LIMITS

Answer 2

Minimum prior to exceeding idle……………………… -10 °C
Minimum prior to takeoff………………………………… 50 °C
Max continuous temperature…………………………… 155 °C
Max transient temperature (15 min)…………………. 165 °C
Minimum starting temperature…………………………. -40 °C

Question 3

Engine Minimum oil quantity

Answer 3

11 qt + estimated consumption

maximum average estimated consumption ∼ 0.3 qt h

Question 4

ENGINE MINIMUM OIL PRESSURE

Answer 4

60 PSI

Question 5

ENGINE RPM LIMITS

Answer 5

N1 max……………………………..100 %

N2 max……………………………. 100 %

Question 6

ENGINE STARTER LIMITATIONS

Answer 6

• 3 consecutive cycles :
  2 cycles of 2 min each, followed by a 3rd cycle of 1 min.
• Pause between start attempts : 15 s.
• After 3 start attempts or 4 min of continuous cranking.
  30 min Cooling period.

Question 7

ENGINE

No running engagement of the starter, when……

Answer 7

• On Ground ….. N2 is above 10 %

- In Flihgt ………. N2 is above 18 %

Question 8

ENGINE

REVERSE THRUST LIMITATIONS

Answer 8

‐ It is not permitted to select reverse thrust in flight
‐ It is not permitted to back up the aircraft with reverse thrust
‐ Maximum reverse should not be used below 70 kt.
(Idle reverse is permitted down to aircraft stop).

Question 9

REDUCED THRUST TAKEOFF LIMITATIONS

Answer 9

‐ Takeoff at reduced thrust is only permitted, if the airplane meets all applicable performance requirements at the planned takeoff weight, with the operating engines at the thrust available for the assumed temperature
‐ Thrust reduction must not exceed 25 % of the full rated takeoff thrust. To meet the requirement, the flexible temperature must not be higher than ISA + 65 (55; 53)°C (T MAX FLEX) Note: When engine anti-ice is on, the flexible temperature is limited to ISA + 60 °C (T MAX FLEX).
‐ The assumed temperature must not be lower than the flat rating temperature, or the actual OAT
‐ Takeoff at reduced thrust is not permitted on contaminated runways
‐ Takeoff at reduced thrust is permitted with any inoperative item affecting the performance, only if the associated performance shortfall has been applied to meet all performance requirements at the takeoff weight, with the operating engines at the thrust available for the flex temperature.

Question 10

ENGINE

CROSS WIND OPERATION ON GROUND

Answer 10

Starting in crosswinds up to 35 kt .