Williams International FJ44-1A
61 aircraft on the U.S. register carry a Williams International FJ44-1A engine, rated at about 1,900 pounds of thrust. The Cessna 525 CitationJet (CJ series) is the model most often fitted with it (61 aircraft). The aircraft carrying it were built between 1993 and 2017.
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 Williams International FJ44-1A. FAA spelling: FJ44-1A.
Where they are owner's state
Texas10Montana4Delaware4California4Tennessee3Mississippi3Georgia3Colorado3Utah2Ohio2
Kind of aircraft
Business jets61 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Williams International FJ44-1A the component layer
The design is held under 1 type certificate (E3GL, held by Williams International Company L.L.C.). The FAA has issued 2 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 59 failure reports with the FAA since 1995, 18 of them in the last ten years.
FAA orders 2 airworthiness directives · newest first
Failure reports 59 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Compressor5Engine5Rotor5Blade3Actuator2Bearing2Bulb2Line2Magnetic Seal2Precooler2
Latest reports
2026-09-24Compressor: damaged
2026-03-25Compressor: damaged
2026-03-19Compressor: damaged
2025-01-21Compressor: damaged
2024-12-05Actuator: failed
Certificates and bulletins
E3GLType certificate held by Williams International Company L.L.C. · 13 models listed · revised April 21, 2021
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
- Cessna 525 CitationJet (CJ series) 61 with this engine series
Where they are
- Texas 10 of these aircraft
- Montana 4 of these aircraft
- Delaware 4 of these aircraft
- California 4 of these aircraft
- Tennessee 3 of these aircraft
Biggest operators
- Amdel Holding LLC 2 of these aircraft
- Tvpx Aircraft Solutions INC Trustee 1 of these aircraft
Airworthiness
- FAA orders naming the Williams International FJ44-1A 2 airworthiness directives
- Failure reports on the Williams International FJ44-1A 59 reports since 1995
Analytics
These connections as data: /graph/engine/williams-international-fj44-1a.json · about the eFlight graph.
Aircraft newest certificates first · 61
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N577KP | Cessna 525 |
Fixed-wing, multi-engine | Pelican Sky LLC Abbeville, Louisiana |
Standard | 2026-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N28CK | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Indiana |
Standard | 2026-08-13 | ValidFAA registration status code V: Valid registration. All codes |
| N34RL | Textron Aviation Inc 525 |
Fixed-wing, multi-engine | Kar2 INC Sevierville, Tennessee |
Standard | 2026-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N365SN | Cessna Aircraft Co 525 |
Fixed-wing, multi-engine | Co-owned owner North Carolina |
Standard | 2026-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N428MG | Cessna 525 |
Fixed-wing, multi-engine | Sav Aviation LLC Jacksonville, Texas |
Standard | 2026-06-01 | ValidFAA registration status code V: Valid registration. All codes |
| N525SY | Cessna 525 |
Fixed-wing, multi-engine | Qualitair LLC Trustee Michelstadt, |
Standard | 2026-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N313WL | Cessna 525 |
Fixed-wing, multi-engine | Peak Aviation LLC Royal Oak, Michigan |
Standard | 2026-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N223CF | Cessna 525 |
Fixed-wing, multi-engine | Cbel Aviation INC Macon, Georgia |
Standard | 2026-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N525MX | Cessna 525 |
Fixed-wing, multi-engine | Amdel Holding LLC Houston, Texas |
Standard | 2026-02-23 | ValidFAA registration status code V: Valid registration. All codes |
| N210MB | Cessna 525 |
Fixed-wing, multi-engine | Safe Flight LLC Suwanee, Georgia |
Standard | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N85VR | Cessna 525 |
Fixed-wing, multi-engine | Bd Charters LLC Henderson, Texas |
Standard | 2026-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N608KG | Cessna 525 |
Fixed-wing, multi-engine | Nlh Aviation LLC College Station, Texas |
Standard | 2025-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N19DP | Cessna 525 |
Fixed-wing, multi-engine | Monterey Bay LLC Atlanta, Georgia |
Standard | 2025-11-01 | ValidFAA registration status code V: Valid registration. All codes |
| N580BD | Cessna 525 |
Fixed-wing, multi-engine | Adams Aviation Services INC Trustee Wilmington, Delaware |
Standard | 2025-10-07 | ValidFAA registration status code V: Valid registration. All codes |
| N146MM | Cessna Aircraft Co 525 |
Fixed-wing, multi-engine | Jackdaw INC Trustee Wilmington, Delaware |
Standard | 2025-07-15 | ValidFAA registration status code V: Valid registration. All codes |
| N555DH | Cessna 525 |
Fixed-wing, multi-engine | Atg112 LLC Reno, Nevada |
Standard | 2025-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N8RL | Cessna 525 |
Fixed-wing, multi-engine | Dumbo Enterprises LLC West Hartford, Connecticut |
Standard | 2025-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N525DT | Cessna Aircraft Co 525 |
Fixed-wing, multi-engine | Tvpx Aircraft Solutions INC Trustee North Salt Lake, Utah |
Standard | 2024-12-30 | ValidFAA registration status code V: Valid registration. All codes |
| N67AZ | Cessna 525 |
Fixed-wing, multi-engine | Lazy Ta Legend Aircraft LLC Wilmington, Delaware |
Standard | 2024-12-13 | ValidFAA registration status code V: Valid registration. All codes |
| N57EC | Cessna 525 |
Fixed-wing, multi-engine | Saratoga Homes of Texas San Antonio LLC El Paso, Texas |
Standard | 2024-09-18 | ValidFAA registration status code V: Valid registration. All codes |
| N600XT | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Ohio |
Standard | 2024-06-25 | ValidFAA registration status code V: Valid registration. All codes |
| N55CJ | Cessna 525 |
Fixed-wing, multi-engine | N55Cj LLC Modesto, California |
Standard | 2024-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N303KM | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Kentucky |
Standard | 2024-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N525KS | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Kansas |
Standard | 2024-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N300BV | Cessna 525 |
Fixed-wing, multi-engine | Cj Bravo Victor LLC Ridgeland, Mississippi |
Standard | 2024-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N525NV | Cessna 525 |
Fixed-wing, multi-engine | Beers Investment Group Toys LLC Saint Petersburg, Florida |
Standard | 2023-10-13 | ValidFAA registration status code V: Valid registration. All codes |
| N8844 | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Arizona |
Standard | 2023-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6NC | Cessna 525 |
Fixed-wing, multi-engine | Meadowbrook Holdings LLC Novi, Michigan |
Standard | 2023-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N555BG | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Colorado |
Standard | 2023-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N473DB | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Montana |
Standard | 2022-12-03 | ValidFAA registration status code V: Valid registration. All codes |
| N51C | Cessna 525 |
Fixed-wing, multi-engine | Five One Charlie LLC Fayetteville, Arkansas |
Standard | 2022-10-20 | ValidFAA registration status code V: Valid registration. All codes |
| N525GK | Cessna 525 |
Fixed-wing, multi-engine | G Money LLC Delavan, Wisconsin |
Standard | 2021-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N5298X | Cessna 525 |
Fixed-wing, multi-engine | Lawtx Travel LLC Houston, Texas |
Standard | 2021-10-22 | ValidFAA registration status code V: Valid registration. All codes |
| N525HY | Cessna 525 |
Fixed-wing, multi-engine | Gp Farms LLC Missoula, Montana |
Standard | 2021-06-30 | ValidFAA registration status code V: Valid registration. All codes |
| N655CK | Cessna 525 |
Fixed-wing, multi-engine | Arrowhead Aviation INC Batesville, Arkansas |
Standard | 2021-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N33NM | Cessna 525 |
Fixed-wing, multi-engine | Bighorn Airways INC Sheridan, Wyoming |
Standard | 2020-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N249CA | Cessna 525 |
Fixed-wing, multi-engine | Lafayette Flight Service LLC Broussard, Louisiana |
Standard | 2020-03-30 | ValidFAA registration status code V: Valid registration. All codes |
| N911Q | Cessna 525 |
Fixed-wing, multi-engine | Jean Burkholder and Glen Ellis LLC Midland, Texas |
Standard | 2020-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N88LS | Cessna 525 |
Fixed-wing, multi-engine | Prince George Aviation LLC Memphis, Tennessee |
Standard | 2019-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N668EE | Cessna 525 |
Fixed-wing, multi-engine | Flying Journey LLC El Monte, California |
Standard | 2019-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N61TY | Cessna 525 |
Fixed-wing, multi-engine | Dcc Aviation LLC Southaven, Mississippi |
Standard | 2019-05-24 | ValidFAA registration status code V: Valid registration. All codes |
| N331GG | Cessna 525 |
Fixed-wing, multi-engine | Ged Jet LLC Boca Raton, Florida |
Standard | 2019-04-08 | ValidFAA registration status code V: Valid registration. All codes |
| N525C | Cessna 525 |
Fixed-wing, multi-engine | Jettech Holdings LLC Broomfield, Colorado |
Standard | 2019-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N124BG | Cessna Aircraft Co 525 |
Fixed-wing, multi-engine | Advance Jets LLC Cincinnati, Ohio |
Standard | 2018-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N454MA | Cessna Aircraft Co 525 |
Fixed-wing, multi-engine | Marv Air LLC Chattanooga, Tennessee |
Standard | 2018-07-31 | ValidFAA registration status code V: Valid registration. All codes |
| N729WR | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2018-03-16 | ValidFAA registration status code V: Valid registration. All codes |
| N61SG | Cessna 525 |
Fixed-wing, multi-engine | Nion LLC New Century, Kansas |
Standard | 2018-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N52KX | Cessna 525 |
Fixed-wing, multi-engine | Zb Air LLC Broken Arrow, Oklahoma |
Standard | 2017-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N918AM | Cessna 525 |
Fixed-wing, multi-engine | Amdel Holding LLC Houston, Texas |
Standard | 2017-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N278K | Cessna 525 |
Fixed-wing, multi-engine | Thienes Engineering INC La Mirada, California |
Standard | 2016-02-25 | ValidFAA registration status code V: Valid registration. All codes |
| N36TX | Cessna 525 |
Fixed-wing, multi-engine | Frog Air LLC Amarillo, Texas |
Standard | 2016-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N223JF | Cessna 525 |
Fixed-wing, multi-engine | Jettair LLC Dallas, Texas |
Standard | 2015-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N518RC | Cessna 525 |
Fixed-wing, multi-engine | Bank of Utah Trustee Salt Lake City, Utah |
Standard | 2015-03-13 | ValidFAA registration status code V: Valid registration. All codes |
| N91BB | Cessna 525 |
Fixed-wing, multi-engine | Bunn Brothers Aviation LLC Tuscaloosa, Alabama |
Standard | 2014-07-14 | ValidFAA registration status code V: Valid registration. All codes |
| N82KA | Cessna 525C |
Fixed-wing, multi-engine | Flight King LLC Spencer, Iowa |
Standard | 2013-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N220JL | Cessna 525 |
Fixed-wing, multi-engine | Juliet Charlie LLC Wolf Creek, Montana |
Standard | 2012-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N358HA | Cessna 525 |
Fixed-wing, multi-engine | Standard | 2012-07-03 | ValidFAA registration status code V: Valid registration. All codes | |
| N489HC | Cessna 525 |
Fixed-wing, multi-engine | J C Cheek Contractors INC Kosciusko, Mississippi |
Standard | 2011-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N600GK | Cessna 525 |
Fixed-wing, multi-engine | Aerospace Trust Management LLC Wilmington, Delaware |
Standard | 2011-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N814DM | Cessna 525 |
Fixed-wing, multi-engine | Six Romeo Mike LLC Billings, Montana |
Standard | 2011-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N70HW | Cessna 525 |
Fixed-wing, multi-engine | Bas Part Sales LLC Greeley, Colorado |
Standard | 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.