Powerplant Limitations

Question 1

When cold-soaked (-30’C or below for more than 8 hrs):

Answer 1

1. Motor engines for 60 seconds and verify fan rotation before engine start
2. Actuate reverse thrusters until deploy and stow cycles less than 5 seconds

Question 2

When must continuous ignition be used?

Answer 2

1. T/o and ldgs on contaminated rwys
2. T/o with high x-wind components (>27 kts) (Company)
3. Flight through moderate or heavier intensity rain
4. Flight through moderate or heavier intensity turbulence
5. Flight in the vicinity of TS

Note:
Engine operation at or near the shaker and pusher settings is predicated on an operable auto-ignition system

Question 3

Starter N2 limit?

Ground and Air

Answer 3

Starter must not be used if N2 > 55%

Question 4

Engine start cycles?

Answer 4

1st Start:
Max Time ON = 1 min.
Followed by 10 sec. off

2nd Start:o
Max Time ON = 1 min.
Followed by 10 sec. off

3rd Start and subsequent:
Max Time ON = 1 min.
Followed by 5 min. off

Question 5

At the initiation of Thrust Lever movement from SHUT OFF to IDLE, ITT must be ____‘C or less for all ground starts.

Answer 5

120’C

Question 6

At the initiation of Thrust Lever movement from SHUT OFF to IDLE, ITT must be ____‘C or less for all air starts.

Answer 6

90’C

Question 7

Dry motoring cycle (with Thrust Levers at SHUT OFF) may be used for ______ and _____.

Answer 7

Engine ground starts and engine airstarts.

Question 8

Dry motoring cycle limits

Answer 8

1st Attempt:
Max time ON = 90 sec.
Followed by 5 min. off

2nd Attempt and continuous:
Max time ON = 30 sec.
Followed by 5 min. off