CFM International CFM56-7B27E
325 aircraft on the U.S. register carry a CFM International CFM56-7B27E engine, rated at about 27,300 pounds of thrust. The Boeing 737 is the model most often fitted with it (325 aircraft). The aircraft carrying it were built between 2012 and 2019.
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. FAA spelling: CFM56-7B27E.
Where they are owner's state
Washington78Illinois76Georgia66Utah54Texas47Maryland3California1
Kind of aircraft
Airliners and large jets325 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the CFM International CFM56-7B27E the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 1,212 failure reports with the FAA since 1995, 1,013 of them in the last ten years.
Failure reports 1,212 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Spacer98Engine93Eec69Blade59Actuator53Hmu47Shim42Wire Harness42Sensor37Fault Code26
Latest reports
2026-09-29Engine: vibration
2026-09-27O-Ring: leaking
2026-09-02Engine: odor
2026-08-30Engine: no discrepancy
2026-08-18Engine: vibration
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
- Boeing 737 325 with this engine series
Where they are
- Washington 78 of these aircraft
- Illinois 76 of these aircraft
- Georgia 66 of these aircraft
- Utah 54 of these aircraft
- Texas 47 of these aircraft
Biggest operators
- Alaska Airlines INC 78 of these aircraft
- United Airlines INC 76 of these aircraft
- Delta Air Lines INC 65 of these aircraft
- Southwest Airlines CO 47 of these aircraft
- Umb Bank Na Trustee 43 of these aircraft
Airworthiness
- Failure reports on the CFM International CFM56-7B27E 1,212 reports since 1995
Analytics
These connections as data: /graph/engine/cfm-international-cfm56-7b27e.json · about the eFlight graph.
Aircraft newest certificates first · 325
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N66837 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N830DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N829DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N875AM | Boeing 737-852 |
Fixed-wing, multi-engine | Wells Fargo Trust CO Na Trustee Columbia, Maryland |
Standard | 2014-11-04 | ValidFAA registration status code V: Valid registration. All codes |
| N8651A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-10-30 | ValidFAA registration status code V: Valid registration. All codes |
| N68836 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N828DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N8650F | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N471AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2014-10-09 | ValidFAA registration status code V: Valid registration. All codes |
| N69835 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-10-09 | ValidFAA registration status code V: Valid registration. All codes |
| N8649A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N825AM | Boeing 737-852 |
Fixed-wing, multi-engine | Wells Fargo Trust CO Na Trustee Columbia, Maryland |
Standard | 2014-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N68834 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-09-22 | ValidFAA registration status code V: Valid registration. All codes |
| N8648A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-09-18 | ValidFAA registration status code V: Valid registration. All codes |
| N69833 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N827DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-09-05 | ValidFAA registration status code V: Valid registration. All codes |
| N8646B | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-09-04 | ValidFAA registration status code V: Valid registration. All codes |
| N8647A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-08-27 | ValidFAA registration status code V: Valid registration. All codes |
| N8645A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-08-22 | ValidFAA registration status code V: Valid registration. All codes |
| N65832 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-08-21 | ValidFAA registration status code V: Valid registration. All codes |
| N469AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2014-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N826DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-08-14 | ValidFAA registration status code V: Valid registration. All codes |
| N8639B | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-08-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8641B | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N66831 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-08-08 | ValidFAA registration status code V: Valid registration. All codes |
| N8640D | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-07-31 | ValidFAA registration status code V: Valid registration. All codes |
| N468AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2014-07-28 | ValidFAA registration status code V: Valid registration. All codes |
| N8637A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N500WR | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-07-09 | ValidFAA registration status code V: Valid registration. All codes |
| N69830 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-06-30 | ValidFAA registration status code V: Valid registration. All codes |
| N8632A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N69829 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N66828 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N8631A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N67827 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-06-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8630B | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N69826 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-06-06 | ValidFAA registration status code V: Valid registration. All codes |
| N8629A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N467AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seatac, Washington |
Standard | 2014-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N66825 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N8628A | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-05-19 | ValidFAA registration status code V: Valid registration. All codes |
| N464AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seatac, Washington |
Standard | 2014-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N69824 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N2708E | Boeing 737-7LT |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2014-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N462AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2014-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N68823 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N8626B | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N68822 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N68821 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N461AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2014-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N63820 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N459AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seatac, Washington |
Standard | 2014-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N69818 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N69819 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N68817 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N67815 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N69816 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N66814 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N457AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seatac, Washington |
Standard | 2014-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N815DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N69813 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N8623F | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2014-01-30 | ValidFAA registration status code V: Valid registration. All codes |
| N67812 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-01-24 | ValidFAA registration status code V: Valid registration. All codes |
| N68811 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2014-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N453AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seatac, Washington |
Standard | 2014-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N813DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N814DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2014-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N69810 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N8619F | Boeing 737-8H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2013-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N811DZ | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N812DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N64809 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-12-10 | ValidFAA registration status code V: Valid registration. All codes |
| N810DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-12-09 | ValidFAA registration status code V: Valid registration. All codes |
| N809DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-12-04 | ValidFAA registration status code V: Valid registration. All codes |
| N442AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-11-26 | ValidFAA registration status code V: Valid registration. All codes |
| N808DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N440AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-11-19 | ValidFAA registration status code V: Valid registration. All codes |
| N66808 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-11-15 | ValidFAA registration status code V: Valid registration. All codes |
| N807DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N435AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-11-12 | ValidFAA registration status code V: Valid registration. All codes |
| N68807 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-11-12 | ValidFAA registration status code V: Valid registration. All codes |
| N806DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-11-12 | ValidFAA registration status code V: Valid registration. All codes |
| N69806 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-10-24 | ValidFAA registration status code V: Valid registration. All codes |
| N804DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-10-23 | ValidFAA registration status code V: Valid registration. All codes |
| N802DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-10-21 | ValidFAA registration status code V: Valid registration. All codes |
| N431AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N433AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N68805 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N803DN | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N801DZ | Boeing 737-932ER |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2013-10-17 | ValidFAA registration status code V: Valid registration. All codes |
| N66803 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-09-25 | ValidFAA registration status code V: Valid registration. All codes |
| N68802 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N69804 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N68801 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-08-01 | ValidFAA registration status code V: Valid registration. All codes |
| N28478 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N27477 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-07-17 | ValidFAA registration status code V: Valid registration. All codes |
| N36476 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-06-25 | ValidFAA registration status code V: Valid registration. All codes |
| N39475 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-06-03 | ValidFAA registration status code V: Valid registration. All codes |
| N37474 | Boeing 737-924ER |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2013-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N423AS | Boeing 737-990ER |
Fixed-wing, multi-engine | Alaska Airlines INC Seattle, Washington |
Standard | 2013-05-15 | ValidFAA registration status code V: Valid registration. All codes |
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.