CFM International CFM56-5B2
38 aircraft on the U.S. register carry a CFM International CFM56-5B2 engine, rated at about 31,000 pounds of thrust. The Airbus A321 is the model most often fitted with it (38 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 CFM56-5B2. FAA spelling: CFM56-5B2.
Where they are owner's state
Utah21Georgia17
Kind of aircraft
Airliners and large jets38 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the CFM International CFM56-5B2 the component layer
The design is held under 2 type certificates. The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 9 failure reports with the FAA since 1995, 8 of them in the last ten years.
FAA orders 21 airworthiness directives · newest first
2023-05-102023-05-05 · Turbine Engine Compressor Section · engine
2021-09-282021-16-08 · Turbine Section · engine
2021-06-242021-10-09 · Turbine Engine Compressor Section · engine
2019-07-052019-12-05 · Turbine Section · engine
2017-04-132017-05-09 · Accessory Gearboxes · engine
2016-03-012016-02-04 · Turbine rear frames (TRFs) · engine
Failure reports 9 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Compressor2Engine2Exciter1Hmu1Idg1Oil System1Valve1
Latest reports
2026-08-13Engine: contaminated
2026-05-05Compressor: stalled
2026-05-04Compressor: stalled
2026-04-08Hmu: leaking
2025-09-17Oil System: leaking
Certificates and bulletins
E37NEType certificate held by Cfm International S.A. · 52 models listed · revised January 15, 2026
E38NEType certificate held by Cfm International S.A. · 52 models listed · revised January 15, 2026
Safety bulletins 3 · advice, not orders
2014-05-28NE-08-17R3 · Turbine Section - Propulsion Technology LLC Unapproved Repair
2012-04-27NE-12-29 · Engine Fuel Distribution CFM56-5B LPTACC Fuel Manifold
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
- Airbus A321 38 with this engine series
Biggest operators
- Delta Air Lines INC 17 of these aircraft
- Bank Of Utah Trustee 13 of these aircraft
- Umb Bank Na Trustee 8 of these aircraft
Airworthiness
- FAA orders naming the CFM International CFM56-5B2 21 airworthiness directives
- Failure reports on the CFM International CFM56-5B2 9 reports since 1995
Analytics
These connections as data: /graph/engine/cfm-international-cfm56-5b2.json · about the eFlight graph.
Aircraft newest certificates first · 38
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N317DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2025-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N349DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2025-06-11 | ValidFAA registration status code V: Valid registration. All codes |
| N308DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2025-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N330DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2024-10-30 | ValidFAA registration status code V: Valid registration. All codes |
| N338DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2024-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N337DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-07-14 | ValidFAA registration status code V: Valid registration. All codes |
| N342DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N340DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N336DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2023-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N323DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2023-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N310DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N311DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N309DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N312DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N313DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N315DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N332DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N352DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-19 | ValidFAA registration status code V: Valid registration. All codes |
| N331DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-05-18 | ValidFAA registration status code V: Valid registration. All codes |
| N335DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N350DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2020-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N364DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N363DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-10-01 | ValidFAA registration status code V: Valid registration. All codes |
| N362DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-09-14 | ValidFAA registration status code V: Valid registration. All codes |
| N361DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-08-31 | ValidFAA registration status code V: Valid registration. All codes |
| N360DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N358DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N357DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N355DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N356DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2018-06-19 | ValidFAA registration status code V: Valid registration. All codes |
| N319DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2017-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N318DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2017-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N307DX | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-07-28 | ValidFAA registration status code V: Valid registration. All codes |
| N304DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-06-30 | ValidFAA registration status code V: Valid registration. All codes |
| N305DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N303DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N302DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-04-12 | ValidFAA registration status code V: Valid registration. All codes |
| N301DV | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Delta Air Lines INC Atlanta, Georgia |
Standard | 2016-03-16 | 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.