CFM International CFM56 series
709 aircraft on the U.S. register carry a CFM International CFM56 series engine, rated at about 2200 horsepower. The Boeing 737 is the model most often fitted with it (488 aircraft). The aircraft carrying it were built between 1988 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 series. FAA spelling: CFM56 SERIES.
Fitted to model families
Boeing 737 · Airbus A319 · Airbus A320 · Airbus A321 · Douglas DC-8 · Boeing 757 · Dassault FALCON 2000
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the CFM International CFM56 series the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 2,440 failure reports with the FAA since 1995, 738 of them in the last ten years.
Failure reports 2,440 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
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
- Boeing 737 488 with this engine series
- Airbus A319 113 with this engine series
- Airbus A320 68 with this engine series
- Airbus A321 34 with this engine series
- Douglas DC-8 4 with this engine series
- Boeing 757 1 with this engine series
- Dassault FALCON 2000 1 with this engine series
- Texas 207 of these aircraft
- Georgia 185 of these aircraft
- Illinois 131 of these aircraft
- Utah 102 of these aircraft
- Washington 19 of these aircraft
- Delta Air Lines INC 185 of these aircraft
- United Airlines INC 131 of these aircraft
- Southwest Airlines CO 111 of these aircraft
- American Airlines INC 93 of these aircraft
- Bank Of Utah Trustee 52 of these aircraft
- Failure reports on the CFM International CFM56 series 2,440 reports since 1995
These connections as data: /graph/engine/cfm-international-cfm56-series.json · about the eFlight graph.
Aircraft newest certificates first · 709
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N671HS | Dassault Aviation FALCON 2000 |
Fixed-wing, multi-engine | Co-owned owner Tennessee |
Standard | 2026-09-23 | ValidFAA registration status code V: Valid registration. All codes |
| N7777Q | Boeing 737-7BC |
Fixed-wing, multi-engine | Cobra Aviation Services LLC Oklahoma City, Oklahoma |
Standard | 2026-09-17 | ValidFAA registration status code V: Valid registration. All codes |
| N37298 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2026-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N859AM | Boeing 737-800 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2026-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N39297 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2026-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N7824A | Boeing 737-7BK |
Fixed-wing, multi-engine | Unical Aviation INC Glendale, Arizona |
Standard | 2026-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N478US | Boeing 737-7H4 |
Fixed-wing, multi-engine | US Department of Homeland Security Arlington, Virginia |
Standard | 2026-03-09 | ValidFAA registration status code V: Valid registration. All codes |
| N7865A | Boeing 737-7Q8 |
Fixed-wing, multi-engine | Unical Aviation INC Glendale, Arizona |
Standard | 2026-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N13750 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2026-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N27724 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2026-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N782SP | Douglas DC-8-72CF |
Fixed-wing, multi-engine | Liberty University INC Lynchburg, Virginia |
Standard | 2026-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N670MT | Boeing 737-4Q8 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2026-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N850MT | Boeing 737-36E |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2026-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N422WN | Boeing 737-7H4 |
Fixed-wing, multi-engine | Unical Aviation INC Litchfield Park, Arizona |
Standard | 2026-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N976AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-25 | ValidFAA registration status code V: Valid registration. All codes |
| N969AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N973AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N37293 | Boeing 737-824 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2025-11-04 | ValidFAA registration status code V: Valid registration. All codes |
| N885DN | Boeing 737-900ER |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2025-11-04 | ValidFAA registration status code V: Valid registration. All codes |
| N397SW | Boeing 737-3H4 |
Fixed-wing, multi-engine | Dynamic Air Solution LLC Fort Lauderdale, Florida |
Standard | 2025-10-31 | ValidFAA registration status code V: Valid registration. All codes |
| N974AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N712US | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2025-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N105UW | Airbus Industrie A320-214 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2025-09-17 | ValidFAA registration status code V: Valid registration. All codes |
| N626SW | Boeing 737-3H4 |
Fixed-wing, multi-engine | Tvpx Ars INC Trustee North Salt Lake, Utah |
Standard | 2025-09-05 | ValidFAA registration status code V: Valid registration. All codes |
| N804DH | Douglas DC-8-73F |
Fixed-wing, multi-engine | Bjw Services INC Kingman, Arizona |
Standard | 2025-07-29 | ValidFAA registration status code V: Valid registration. All codes |
| N888AU | Boeing 737-490 |
Fixed-wing, multi-engine | Aircraft 28888 LLC Lake Mary, Florida |
Standard | 2025-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N377XX | Boeing 737-75V |
Fixed-wing, multi-engine | Standard | 2025-06-12 | ValidFAA registration status code V: Valid registration. All codes | |
| N112US | Airbus Industrie A320-214 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2025-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N347DN | Airbus Sas A321-213 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2025-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N883V | Boeing 737-75G |
Fixed-wing, multi-engine | Innovation First Intl Research & Development INC Greenville, Texas |
Standard | 2025-01-03 | ValidFAA registration status code V: Valid registration. All codes |
| N970AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-11-26 | ValidFAA registration status code V: Valid registration. All codes |
| N34282 | Boeing 737-824 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2024-11-01 | ValidFAA registration status code V: Valid registration. All codes |
| N804SY | Boeing 737-8Q8 |
Fixed-wing, multi-engine | Sun Country INC Minneapolis, Minnesota |
Standard | 2024-10-09 | ValidFAA registration status code V: Valid registration. All codes |
| N975AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N73275 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-08-14 | ValidFAA registration status code V: Valid registration. All codes |
| N971AN | Boeing 737-823 |
Fixed-wing, multi-engine | American Airlines INC Fort Worth, Texas |
Standard | 2024-07-29 | ValidFAA registration status code V: Valid registration. All codes |
| N706SW | Boeing 737-7H4 |
Fixed-wing, multi-engine | Jmf Global INC Anaheim, California |
Standard | 2024-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N37274 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-07-19 | ValidFAA registration status code V: Valid registration. All codes |
| N37273 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N438US | Boeing 737-4B7 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N625SW | Boeing 737-3H4 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N627SW | Boeing 737-3H4 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N629SW | Boeing 737-3H4 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N804TJ | Boeing 737-401 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N806TJ | Boeing 737-490 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N807TJ | Boeing 737-4Q8 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N808TJ | Boeing 737-4Q8 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N811TJ | Boeing 737-306 |
Fixed-wing, multi-engine | Eastern 737 Asset Holdings LLC Kansas City, Missouri |
Standard | 2024-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N37409 | Boeing 737-924 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N35271 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N886DN | Boeing 737-900ER |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2024-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N76269 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N883DN | Boeing 737-900ER |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2024-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N73270 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-04-03 | ValidFAA registration status code V: Valid registration. All codes |
| N882DN | Boeing 737-900ER |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2024-03-29 | ValidFAA registration status code V: Valid registration. All codes |
| N38268 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N37408 | Boeing 737-924 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N37267 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N76265 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-02-21 | ValidFAA registration status code V: Valid registration. All codes |
| N491WN | Boeing 737-7H4 |
Fixed-wing, multi-engine | Southwest Airlines CO Dallas, Texas |
Standard | 2024-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N37263 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-01-30 | ValidFAA registration status code V: Valid registration. All codes |
| N33262 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2024-01-25 | ValidFAA registration status code V: Valid registration. All codes |
| N32404 | Boeing 737-924 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-12-29 | ValidFAA registration status code V: Valid registration. All codes |
| N77261 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-12-29 | ValidFAA registration status code V: Valid registration. All codes |
| N707J | Boeing 737-7BC |
Fixed-wing, multi-engine | Spectre Air Capital LLC Horseshoe Bay, Texas |
Standard | 2023-12-27 | ValidFAA registration status code V: Valid registration. All codes |
| N30401 | Boeing 737-924 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N802DH | Douglas DC-8-73 |
Fixed-wing, multi-engine | Heavylift Cargo Airlines INC Kingman, Arizona |
Standard | 2023-09-20 | ValidFAA registration status code V: Valid registration. All codes |
| N803DH | Douglas DC-8-73 |
Fixed-wing, multi-engine | Heavylift Cargo Airlines INC Kingman, Arizona |
Standard | 2023-09-20 | ValidFAA registration status code V: Valid registration. All codes |
| N17730 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-06-16 | ValidFAA registration status code V: Valid registration. All codes |
| N38727 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N39726 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N36247 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-06-02 | ValidFAA registration status code V: Valid registration. All codes |
| N38257 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N73256 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N714US | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2023-04-20 | ValidFAA registration status code V: Valid registration. All codes |
| N37255 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-04-14 | ValidFAA registration status code V: Valid registration. All codes |
| N73259 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N73251 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-02-23 | ValidFAA registration status code V: Valid registration. All codes |
| N300EK | Boeing 737-3H4 |
Fixed-wing, multi-engine | Tvpx Aircraft Solutions INC Trustee North Salt Lake, Utah |
Standard | 2023-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N923TR | Boeing 737-524 |
Fixed-wing, multi-engine | Career Aviation CO INC Wilmington, Delaware |
Standard | 2023-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N36207 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-02-01 | ValidFAA registration status code V: Valid registration. All codes |
| N399WN | Boeing 737-3H4 |
Fixed-wing, multi-engine | Coulson Aviation (USA) INC Portland, Oregon |
Standard | 2023-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N737CG | Boeing 737-3H4 |
Fixed-wing, multi-engine | Coulson Aviation (USA) INC Portland, Oregon |
Standard | 2023-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N27205 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N11206 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2023-01-18 | ValidFAA registration status code V: Valid registration. All codes |
| N285GX | Airbus A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N33203 | Boeing 737-824 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2022-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N966AD | Airbus A321-211 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2022-10-15 | ValidFAA registration status code V: Valid registration. All codes |
| N704US | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank N A Trustee Salt Lake City, Utah |
Standard | 2022-10-11 | ValidFAA registration status code V: Valid registration. All codes |
| N715UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-10-05 | ValidFAA registration status code V: Valid registration. All codes |
| N805SY | Boeing 737-8Q8 |
Fixed-wing, multi-engine | Sun Country INC Minneapolis, Minnesota |
Standard | 2022-09-29 | ValidFAA registration status code V: Valid registration. All codes |
| N723UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-09-23 | ValidFAA registration status code V: Valid registration. All codes |
| N716UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-09-22 | ValidFAA registration status code V: Valid registration. All codes |
| N16713 | Boeing 737-724 |
Fixed-wing, multi-engine | United Airlines INC Chicago, Illinois |
Standard | 2022-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N569TR | Boeing 737-3TO |
Fixed-wing, multi-engine | Career Aviation CO INC Wilmington, Delaware |
Standard | 2022-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N708UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N709UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-09-14 | ValidFAA registration status code V: Valid registration. All codes |
| N710UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank N A Trustee Salt Lake City, Utah |
Standard | 2022-09-09 | ValidFAA registration status code V: Valid registration. All codes |
| N724UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Na Trustee Salt Lake City, Utah |
Standard | 2022-09-07 | ValidFAA registration status code V: Valid registration. All codes |
| N701UW | Airbus Industrie A319-112 |
Fixed-wing, multi-engine | Umb Bank Trustee Salt Lake City, Utah |
Standard | 2022-09-02 | 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.
