Williams International FJ 44 series
552 aircraft on the U.S. register carry a Williams International FJ 44 series engine, rated at about 1,900 pounds of thrust. The Cessna 525 CitationJet (CJ series) is the model most often fitted with it (517 aircraft). The aircraft carrying it were built between 1981 and 2022.
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 FJ 44 series. FAA spelling: FJ 44 SERIES.
Fitted to model families
Cessna 525 CitationJet (CJ series)517Raytheon Aircraft Company 39021Pilatus PC-247Cessna 501 Citation I/SP6Scaled Composites Llc 2811
Cessna 525 CitationJet (CJ series) · Raytheon Aircraft Company 390 · Pilatus PC-24 · Cessna 501 Citation I/SP · Scaled Composites Llc 281
Where they are owner's state
Texas67Delaware39California39Florida32Tennessee26Ohio21Alabama21Utah19North Carolina18Georgia18
Kind of aircraft
Business jets552 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Williams International FJ 44 series the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 168 failure reports with the FAA since 1995, 30 of them in the last ten years.
Failure reports 168 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Blade13Engine9Precooler6Valve6Actuator4Squat Switch4Bulb3Cabin Pressure3Connector3Gyro3
Latest reports
2026-06-19Control Cable: binding
2026-02-03Turbine Blades: damaged
2024-09-12Pressure Valve: failed
2024-09-06Duct: out of position
2024-06-27Warning Message: false activation
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) 517 with this engine series
- Raytheon Aircraft Company 390 21 with this engine series
- Pilatus PC-24 7 with this engine series
- Cessna 501 Citation I/SP 6 with this engine series
Where they are
- Texas 67 of these aircraft
- Delaware 39 of these aircraft
- California 39 of these aircraft
- Florida 32 of these aircraft
- Tennessee 26 of these aircraft
Biggest operators
- Tvpx Aircraft Solutions INC Trustee 6 of these aircraft
- Huff Air LLC 4 of these aircraft
Airworthiness
- Failure reports on the Williams International FJ 44 series 168 reports since 1995
Analytics
These connections as data: /graph/engine/williams-international-fj-44-series.json · about the eFlight graph.
Aircraft newest certificates first · 552
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N316PJ | Cessna 525 |
Fixed-wing, multi-engine | Wmj Aviation LLC Wilmington, Delaware |
Standard | 2023-09-12 | ValidFAA registration status code V: Valid registration. All codes |
| N805CJ | Cessna 525 |
Fixed-wing, multi-engine | Icbs Aviation LLC Allen, Texas |
Standard | 2023-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N99CJ | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2023-09-08 | ValidFAA registration status code V: Valid registration. All codes |
| N167DP | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Rgv Sky LLC Harlingen, Texas |
Standard | 2023-08-30 | ValidFAA registration status code V: Valid registration. All codes |
| N155CG | Cessna 525 |
Fixed-wing, multi-engine | Bigees Air LLC Sioux Falls, South Dakota |
Standard | 2023-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N59BS | Cessna 525 |
Fixed-wing, multi-engine | Slx Air LLC Waxhaw, North Carolina |
Standard | 2023-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N525SM | Cessna 525A |
Fixed-wing, multi-engine | Sftf Investments LLC Onalaska, Wisconsin |
Standard | 2023-08-22 | ValidFAA registration status code V: Valid registration. All codes |
| N179WC | Cessna 525B |
Fixed-wing, multi-engine | Bailburch Aviation LLC Little Rock, Arkansas |
Standard | 2023-08-17 | ValidFAA registration status code V: Valid registration. All codes |
| N957RD | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Tailwind Aviation LLP Bismarck, North Dakota |
Standard | 2023-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N94AL | Cessna 525 |
Fixed-wing, multi-engine | Bbj Ventures LLC Goldsboro, North Carolina |
Standard | 2023-07-18 | ValidFAA registration status code V: Valid registration. All codes |
| N390SM | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Rk Aero LLC Sioux Falls, South Dakota |
Standard | 2023-07-12 | ValidFAA registration status code V: Valid registration. All codes |
| N6UB | Cessna 525 |
Fixed-wing, multi-engine | Citation525 Holdings LLC Potomac, Maryland |
Standard | 2023-07-05 | ValidFAA registration status code V: Valid registration. All codes |
| N919MC | Cessna 525 |
Fixed-wing, multi-engine | Hanson Operating Company INC Roswell, New Mexico |
Standard | 2023-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N950P | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Texas |
Standard | 2023-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N21XP | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Broad Street Aviation LLC Columbus, Ohio |
Standard | 2023-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N300FC | Cessna 525 |
Fixed-wing, multi-engine | Dresden Aviation LLC Atlanta, Georgia |
Standard | 2023-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N51GN | Cessna 525 |
Fixed-wing, multi-engine | Powell Construction Company INC Johnson City, Tennessee |
Standard | 2023-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N61908 | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Co-owned owner Florida |
Standard | 2023-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N92SH | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | Coffman Air LLC Liberty, Indiana |
Standard | 2023-05-30 | ValidFAA registration status code V: Valid registration. All codes |
| N525BP | Cessna 525 |
Fixed-wing, multi-engine | Pmi Aviation LLC Fishers, Indiana |
Standard | 2023-05-24 | ValidFAA registration status code V: Valid registration. All codes |
| N20VL | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Alabama |
Standard | 2023-05-15 | ValidFAA registration status code V: Valid registration. All codes |
| N535 | Cessna 525 |
Fixed-wing, multi-engine | Citation Jet 535 LLC Moultrie, Georgia |
Standard | 2023-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N162EC | Cessna 525B |
Fixed-wing, multi-engine | Citation Dreams LLC Inlet Beach, Florida |
Standard | 2023-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N993GL | Cessna 525 |
Fixed-wing, multi-engine | Cody Aviation Partners LLC Salt Lake City, Utah |
Standard | 2023-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N608MM | Cessna 525 |
Fixed-wing, multi-engine | Berry Air LLC Millwood, Georgia |
Standard | 2023-04-29 | ValidFAA registration status code V: Valid registration. All codes |
| N51EM | Cessna 525C |
Fixed-wing, multi-engine | Jdi Holdings LLC Allentown, Pennsylvania |
Standard | 2023-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N810SS | Cessna 525 |
Fixed-wing, multi-engine | Ngo Aviation LLC Lafayette, Louisiana |
Standard | 2023-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N479MY | Cessna 525 |
Fixed-wing, multi-engine | Mcclain Mcclain Mcclain INC Ridgeland, Mississippi |
Standard | 2023-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N786AH | Cessna 525B |
Fixed-wing, multi-engine | Napoleon LLC Merriam, Kansas |
Standard | 2023-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N525CD | Cessna 525 |
Fixed-wing, multi-engine | Lincoln Transport D LLC Newark, Delaware |
Standard | 2023-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N503TF | Cessna 525C |
Fixed-wing, multi-engine | Pegasus I LLC Kalispell, Montana |
Standard | 2023-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N888RA | Cessna 525 |
Fixed-wing, multi-engine | Hope Air LLC Lewes, Delaware |
Standard | 2023-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N525HC | Cessna 525 |
Fixed-wing, multi-engine | Aircraft Trustee Services INC Trustee Dover, Delaware |
Standard | 2023-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N58SJ | Cessna 525A |
Fixed-wing, multi-engine | Seastar INC Carmel, Indiana |
Standard | 2023-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N711WG | Cessna 525 |
Fixed-wing, multi-engine | Cinco Aviation LLC Hobbs, New Mexico |
Standard | 2023-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N97VF | Cessna 525 |
Fixed-wing, multi-engine | Lynnco Airways LLC Cleveland, Tennessee |
Standard | 2023-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N525HS | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2023-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N821HP | Cessna 525A |
Fixed-wing, multi-engine | High Line Air LLC Laredo, Texas |
Standard | 2023-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N1BZ | Cessna 525 |
Fixed-wing, multi-engine | L2 Operations LLC Saint Paul, Minnesota |
Standard | 2023-03-02 | ValidFAA registration status code V: Valid registration. All codes |
| N525ZZ | Cessna 525A |
Fixed-wing, multi-engine | Cpd Properties LLC Macon, Georgia |
Standard | 2023-03-02 | ValidFAA registration status code V: Valid registration. All codes |
| N59FH | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner North Carolina |
Standard | 2023-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N219CM | Cessna 525A |
Fixed-wing, multi-engine | Mt Aviation LLC Cincinnati, Ohio |
Standard | 2023-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N719L | Cessna 525C |
Fixed-wing, multi-engine | Voltus LLC Salt Lake City, Utah |
Standard | 2023-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N617AB | Cessna 525 |
Fixed-wing, multi-engine | Ab Squared LLC Deephaven, Minnesota |
Standard | 2023-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N159JS | Cessna 525B |
Fixed-wing, multi-engine | B&L Adventures LLC Sealy, Texas |
Standard | 2023-02-01 | ValidFAA registration status code V: Valid registration. All codes |
| N559SA | Cessna 525C |
Fixed-wing, multi-engine | Co-owned owner Kentucky |
Standard | 2023-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N514DS | Cessna 525 |
Fixed-wing, multi-engine | Epi Air LLC Hailey, Idaho |
Standard | 2023-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N959HM | Cessna 525 |
Fixed-wing, multi-engine | Javelina Aviation LLC Cheyenne, Wyoming |
Standard | 2023-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N186TW | Cessna 525 |
Fixed-wing, multi-engine | Tnp Aviation LLC Valdosta, Georgia |
Standard | 2023-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N707LL | Cessna 525A |
Fixed-wing, multi-engine | Co-owned owner Georgia |
Standard | 2023-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N8GQ | Cessna 525C |
Fixed-wing, multi-engine | About Time LLC Parker, Colorado |
Standard | 2023-01-07 | ValidFAA registration status code V: Valid registration. All codes |
| N525DU | Cessna 525 |
Fixed-wing, multi-engine | Ftc Air Holdings 2 LLC Tampa, Florida |
Standard | 2023-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N525WB | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner South Carolina |
Standard | 2023-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N30LA | Cessna 525 |
Fixed-wing, multi-engine | Aerokb LLC Wilmington, Delaware |
Standard | 2022-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N505SJ | Cessna 525 |
Fixed-wing, multi-engine | Midje LLC Humboldt, Tennessee |
Standard | 2022-12-14 | ValidFAA registration status code V: Valid registration. All codes |
| N562PC | Cessna 525 |
Fixed-wing, multi-engine | Delta Farm Express LLC Richview, Illinois |
Standard | 2022-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N858DD | Cessna 525 |
Fixed-wing, multi-engine | Doss Air LLC Mounds, Illinois |
Standard | 2022-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N127MJ | Cessna 525 |
Fixed-wing, multi-engine | Zacj LLC Zanesville, Ohio |
Standard | 2022-11-17 | ValidFAA registration status code V: Valid registration. All codes |
| N3SW | Cessna 525 |
Fixed-wing, multi-engine | Aero Burro LLC San Antonio, Texas |
Experimental | 2022-11-17 | ValidFAA registration status code V: Valid registration. All codes |
| N504P | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner North Carolina |
Standard | 2022-11-16 | ValidFAA registration status code V: Valid registration. All codes |
| N525JJ | Cessna 525 |
Fixed-wing, multi-engine | Reb Transporation LLC Hattiesburg, Mississippi |
Standard | 2022-11-16 | ValidFAA registration status code V: Valid registration. All codes |
| N484J | Cessna 525 |
Fixed-wing, multi-engine | Southern Airways LLC Ridgeland, Mississippi |
Standard | 2022-11-12 | ValidFAA registration status code V: Valid registration. All codes |
| N450CM | Cessna 525C |
Fixed-wing, multi-engine | Jonda LLC Sioux Falls, South Dakota |
Standard | 2022-10-31 | ValidFAA registration status code V: Valid registration. All codes |
| N501CJ | Cessna 525 |
Fixed-wing, multi-engine | Ostrich Boot LLC Little Rock, Arkansas |
Standard | 2022-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N746JS | Cessna 525B |
Fixed-wing, multi-engine | Canyons Aviation Group LLC Orlando, Florida |
Standard | 2022-10-20 | ValidFAA registration status code V: Valid registration. All codes |
| N25BG | Cessna 525 |
Fixed-wing, multi-engine | Spearfish LLC St Peters, Missouri |
Standard | 2022-10-17 | ValidFAA registration status code V: Valid registration. All codes |
| N425WH | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Alabama |
Standard | 2022-10-05 | ValidFAA registration status code V: Valid registration. All codes |
| N21TK | Cessna 525 |
Fixed-wing, multi-engine | Mtk Leasing LLC Woodburn, Oregon |
Standard | 2022-10-04 | ValidFAA registration status code V: Valid registration. All codes |
| N55JP | Cessna 525 |
Fixed-wing, multi-engine | Dakota Aircraft INC Pierre, South Dakota |
Standard | 2022-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N21VC | Cessna 525 |
Fixed-wing, multi-engine | Citation Hawk LLC Moody, Alabama |
Standard | 2022-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N194MG | Cessna 525 |
Fixed-wing, multi-engine | Sdw Aviation LLC Albany, Georgia |
Standard | 2022-08-29 | ValidFAA registration status code V: Valid registration. All codes |
| N525B | Cessna 525B |
Fixed-wing, multi-engine | Co-owned owner Delaware |
Standard | 2022-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N737RJ | Cessna 501 |
Fixed-wing, multi-engine | Mcml Ventures LLC Orlando, Florida |
Standard | 2022-07-27 | ValidFAA registration status code V: Valid registration. All codes |
| N525GY | Cessna 525B |
Fixed-wing, multi-engine | Co-owned owner Pennsylvania |
Standard | 2022-07-23 | ValidFAA registration status code V: Valid registration. All codes |
| N121VM | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2022-07-20 | ValidFAA registration status code V: Valid registration. All codes |
| N85KM | Cessna 525A |
Fixed-wing, multi-engine | Shea Aviation LLC Chattanooga, Tennessee |
Standard | 2022-07-06 | ValidFAA registration status code V: Valid registration. All codes |
| N222NF | Cessna 525A |
Fixed-wing, multi-engine | Shelter Air Charter LLC Brooklyn, New York |
Standard | 2022-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N418KC | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner Texas |
Standard | 2022-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N907SF | Cessna 525C |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2022-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N315HC | Cessna 525 |
Fixed-wing, multi-engine | Hooper Holdings LLC Madison, Wisconsin |
Standard | 2022-06-06 | ValidFAA registration status code V: Valid registration. All codes |
| N54DA | Cessna 525 |
Fixed-wing, multi-engine | Thoroughbred II LLC State College, Pennsylvania |
Standard | 2022-05-27 | ValidFAA registration status code V: Valid registration. All codes |
| N27CJ | Cessna 525 |
Fixed-wing, multi-engine | 411Kc LLC Tuscaloosa, Alabama |
Standard | 2022-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N608DB | Cessna 525 |
Fixed-wing, multi-engine | Door 4 LLC Deadwood, South Dakota |
Standard | 2022-05-20 | ValidFAA registration status code V: Valid registration. All codes |
| N47SH | Cessna 525 |
Fixed-wing, multi-engine | Gc Aviation Investments LLC Augusta, Arkansas |
Standard | 2022-05-19 | ValidFAA registration status code V: Valid registration. All codes |
| N163M | Cessna 525C |
Fixed-wing, multi-engine | Data Center Services Leasing LLC Salem, Oregon |
Standard | 2022-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N614HB | Cessna 525A |
Fixed-wing, multi-engine | Hts Air LLC Amarillo, Texas |
Standard | 2022-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N525JE | Cessna 525 |
Fixed-wing, multi-engine | Simply Living LLC Fort Myers, Florida |
Standard | 2022-05-03 | ValidFAA registration status code V: Valid registration. All codes |
| N430BT | Cessna 525 |
Fixed-wing, multi-engine | Dry Valley Investors LLC Cleveland, Tennessee |
Standard | 2022-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N306CJ | Cessna 525A |
Fixed-wing, multi-engine | Standard | 2022-04-04 | ValidFAA registration status code V: Valid registration. All codes | |
| N426ED | Cessna 525 |
Fixed-wing, multi-engine | Windsock Aviation LLC Bridgeport, West Virginia |
Standard | 2022-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N69WH | Cessna 525A |
Fixed-wing, multi-engine | Standard | 2022-03-28 | ValidFAA registration status code V: Valid registration. All codes | |
| N471MD | Cessna 525 |
Fixed-wing, multi-engine | Citation Management LLC Pelham, Alabama |
Standard | 2022-03-19 | ValidFAA registration status code V: Valid registration. All codes |
| N20DC | Cessna 525 |
Fixed-wing, multi-engine | Kar Aviation LLC New Albany, Mississippi |
Standard | 2022-03-16 | ValidFAA registration status code V: Valid registration. All codes |
| N672JM | Cessna 525 |
Fixed-wing, multi-engine | Peregrine Aviation LLC Tallahassee, Florida |
Standard | 2022-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N5255B | Cessna 525 |
Fixed-wing, multi-engine | West Wind Air LLC Lake Village, Arkansas |
Standard | 2022-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N525JW | Cessna 525 |
Fixed-wing, multi-engine | Washington Road Properties Level 2 LLC Highlands, North Carolina |
Standard | 2022-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N718AL | Cessna 525A |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 2022-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N525VP | Cessna 525A |
Fixed-wing, multi-engine | Fractional Jet Services of Oklahoma LLC Oklahoma City, Oklahoma |
Standard | 2022-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N8288R | Cessna 525 |
Fixed-wing, multi-engine | Fw Cielo LLC Canton, Ohio |
Standard | 2022-01-19 | ValidFAA registration status code V: Valid registration. All codes |
| N740JS | Cessna 525A |
Fixed-wing, multi-engine | Co-owned owner Florida |
Standard | 2022-01-11 | 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.