SE00033EN
Installation of Pratt & Whitney (P&W) Global Material Solutions (GMS) CFM56-3 High Pressure Compressor Module. Held by Pratt & Whitney, which holds 10 approved modifications in all. Last revised July 27, 2009. System: engine.
What it applies to
- Kind of product
- Engine
- Design holder
- CFM International S.A.; CFM International S.A.; CFM International S.A.; CFM International S.A.; CFM International S.A.; CFM International S.A.
- Models
- CFM56-3, CFM56-3B, CFM56-3C, CFM56-3, CFM56-3B, CFM56-3C
- Type certificates
- E21EU, E21EU, E21EU, E2GL, E2GL, E2GL
- The FAA's record
- On the FAA's site
What an approved modification is
A supplemental type certificate is the FAA's approval of a change to a certified design: a new engine or propeller, avionics, an autopilot, floats, a parachute, a larger fuel tank, an ice-protection kit. The company holding it may sell the kit and the paperwork to owners of the listed models; the modification then becomes part of that aircraft's record. The FAA's list says what was approved and for which models, not how many aircraft carry it.
Source: FAA supplemental type certificates (Dynamic Regulatory System). Register counts from the FAA register of October 5, 2026.