ITT takeoff
5 max - 2 engines 700 C < 5 minutes
10 min max - 1 engine. 700C < 10 min
ITT during start
740 C < 5 seconds
ITT flight
Max continuous 700C < 5 minutes
Start limit
N1 must show rotation by?
25% N2 or abort start
Start limit
ITT must indicate with in
10 seconds
Start sequence ends when
N2 speed sensor on accessory gear box indicates
38% N2
Boost pump annunciator light extinguishes and white start light extinguishes
Idle rpm ground idle NORM
45.3% N2
Idle Ground idle switch- HIGH
49.4% N2
N2 Max continuous
100% N2
N2 Transient
102% < 20 seconds