The CFM International CFM56-7B27 is an approved model within the CFM56-7B high-bypass turbofan series. It supplies jet thrust through a fan and gas-turbine core, with engine limits and approved aircraft applications defined by its certification documents. The -7B27 designation is narrower than the CFM56 family or -7B series; suffixes and later production standards must be checked before applying thrust ratings, maintenance requirements or installation approvals.