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WN Engine Upgrades  
User currently offlineTWA717_200 From , joined Dec 1969, posts, RR:
Posted (14 years 6 months 1 week 6 days 9 hours ago) and read 1930 times:

Just read that Southwest is purchasing kits to upgrade 300 CFM56 engines. Does anyone know what these kits consist of, what they do, and the improvement they provide?



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2 replies: All unread, jump to last
User currently offlineOPNLguy From , joined Dec 1969, posts, RR:
Reply 1, posted (14 years 6 months 1 week 6 days 7 hours ago) and read 1197 times:

Haven't heard this, but if true, they're probably upgrading their CFM56-B22 engines to either a -B24 or -B26 rating for more performance and payload lift. From what I understand, it's essentially a re-calibration and re-setting of the existing engine controllers, along with some other minor modifications, along with $upporting paperwork/documentation (always big bucks).

They have about 190 of the -300s, and 25 -500s, so that 300-engine figure you mentioned equates to 150 aircraft. maybe they're only doing the 150 newest -300s and -500s in the fleet.

Where'd ya see/hear about this?

User currently offlineTWA717_200 From , joined Dec 1969, posts, RR:
Reply 2, posted (14 years 6 months 7 hours ago) and read 1155 times:

OPNL, I think I read about it on PRUUNE.

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