The U.S. aircraft register, updated daily
Engines · turbofan · data as of October 5, 2026

CFM International CFM56-7B27E/F

111 aircraft on the U.S. register carry a CFM International CFM56-7B27E/F engine, rated at about 27,300 pounds of thrust. The Boeing 737 is the model most often fitted with it (111 aircraft). The aircraft carrying it were built between 2016 and 2018.

The FAA records engines by code, usually at the level of a series ("O-320 series") rather than the exact variant; this page gathers every FAA code that reads as CFM International CFM56-7B27E/F. FAA spelling: CFM56-7B27E/F.

Fitted to model families

Boeing 737111

Boeing 737

Where they are owner's state

Texas84Utah13Illinois13Georgia1

Kind of aircraft

Airliners and large jets111 (100%)

When the aircraft were built by decade

02856831111112010

What the FAA has certified, ordered and been told about the CFM International CFM56-7B27E/F the component layer

The design is held under 2 type certificates. The FAA has issued 11 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 11 airworthiness directives · newest first

2023-05-102023-05-05 · Turbine Engine Compressor Section · engine
2021-06-242021-10-09 · Turbine Engine Compressor Section · engine
2019-01-102018-26-01 · Turbine Engine Compressor Section · engine
2018-10-162018-18-01 · Turbine Engine Compressor Section · engine
2018-06-012018-10-11 · Turbine Engine Compressor Section · engine
2018-05-142018-09-10 · Turbine Engine Compressor Section · engine

All orders naming the CFM International CFM56-7B27E/F

Certificates and bulletins

E00055ENType certificate held by Cfm International S.A. · 49 models listed · revised August 19, 2024
E00056ENType certificate held by Cfm International S.A. · 49 models listed · revised August 19, 2024

Safety bulletins 2 · advice, not orders

2014-05-28NE-08-17R3 · Turbine Section - Propulsion Technology LLC Unapproved Repair
2011-03-07NE-08-17R2 · Turbine Section - Propulsion Technology LLC Unapproved Repair

Sources: the FAA's type certificate data sheets, airworthiness directives, supplemental type certificates, special conditions and special airworthiness information bulletins (Dynamic Regulatory System), and the FAA's service difficulty reports. A failure report is what an operator or repair station chose to file; the counts show reporting as much as reliability, and larger and commercial fleets report more. How the systems are grouped.

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators
Airworthiness

These connections as data: /graph/engine/cfm-international-cfm56-7b27e-f.json · about the eFlight graph.

Aircraft newest certificates first · 111

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N8687A Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-07-12 ValidFAA registration status code V: Valid registration. All codes
N8688J Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-07-12 ValidFAA registration status code V: Valid registration. All codes
N8686A Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-06-28 ValidFAA registration status code V: Valid registration. All codes
N8684F Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-06-16 ValidFAA registration status code V: Valid registration. All codes
N76532 Boeing
737-824
Fixed-wing, multi-engine United Airlines INC
Chicago, Illinois
Standard 2016-06-14 ValidFAA registration status code V: Valid registration. All codes
N8683D Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-05-02 ValidFAA registration status code V: Valid registration. All codes
N8682B Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-04-19 ValidFAA registration status code V: Valid registration. All codes
N856DN Boeing
737-932ER
Fixed-wing, multi-engine Delta Air Lines INC
Atlanta, Georgia
Standard 2016-03-30 ValidFAA registration status code V: Valid registration. All codes
N8681M Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2016-03-24 ValidFAA registration status code V: Valid registration. All codes
N62894 Boeing
737-924ER
Fixed-wing, multi-engine United Airlines INC
Chicago, Illinois
Standard 2016-02-22 ValidFAA registration status code V: Valid registration. All codes
N8644C Boeing
737-8H4
Fixed-wing, multi-engine Southwest Airlines CO
Dallas, Texas
Standard 2014-12-31 ValidFAA registration status code V: Valid registration. All codes
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Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.