WN -7H4 Engines

[Ian Eckardt Rigberg]

I was looking on Planespotters.net and I noticed that some of Southwest's -7H4 have CFM CFM56-7B22 and some have CFM CFM56-7B24. Which is correct?

 

[grmach1]

They started life as 22k but we upgraded them by a program pin change to 24k thrust.

 

[A320 Driver]

They started life as 22k but we upgraded them by a program pin change to 24k thrust.

Makes them spin faster...that's all it takes.