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
The design is held under 1 type certificate (E3GL, held by Williams International Company L.L.C.). 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
Certificates and bulletins
E3GLType certificate held by Williams International Company L.L.C. · 2 models listed · revised July 7, 1997
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 |
|---|---|---|---|---|---|---|
| N30VR | Cessna 525 |
Fixed-wing, multi-engine | Wd Journeys INC Downers Grove, Illinois |
Standard | 2011-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N486CC | Cessna 525 |
Fixed-wing, multi-engine | Flint Transport LLC Albany, Georgia |
Standard | 2011-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N256DV | Cessna 525C |
Fixed-wing, multi-engine | Rdv Aviation LLC Grand Rapids, Michigan |
Standard | 2011-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N740AK | Cessna 525C |
Fixed-wing, multi-engine | Oakley Air LLC North Little Rock, Arkansas |
Standard | 2011-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N341AR | Cessna 525 |
Fixed-wing, multi-engine | Mla Management LLC Salt Lake City, Utah |
Standard | 2011-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N94JW | Cessna 525C |
Fixed-wing, multi-engine | W B Air Three LLC Houston, Texas |
Standard | 2011-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N545JF | Cessna 525C |
Fixed-wing, multi-engine | Jf LLC Janesville, Wisconsin |
Standard | 2011-04-28 | ValidFAA registration status code V: Valid registration. All codes |
| N487TT | Cessna 525B |
Fixed-wing, multi-engine | Thompson Tractor CO INC Birmingham, Alabama |
Standard | 2011-04-11 | ValidFAA registration status code V: Valid registration. All codes |
| N219L | Cessna 525C |
Fixed-wing, multi-engine | Estrella Aviation III LLC Phoenix, Arizona |
Standard | 2011-02-22 | ValidFAA registration status code V: Valid registration. All codes |
| N14CJ | Cessna 525C |
Fixed-wing, multi-engine | Jh Aircraft Management INC Anchorage, Alaska |
Standard | 2011-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N417C | Cessna 525C |
Fixed-wing, multi-engine | Wing and A Prayer INC Walnut Creek, California |
Standard | 2011-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N189MS | Cessna 525A |
Fixed-wing, multi-engine | Aviation II INC Tulsa, Oklahoma |
Standard | 2010-12-16 | ValidFAA registration status code V: Valid registration. All codes |
| N525LK | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2010-04-09 | ValidFAA registration status code V: Valid registration. All codes |
| N100PF | Cessna 525 |
Fixed-wing, multi-engine | Pony Express Aviation LLC Miami Beach, Florida |
Standard | 2009-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N525BT | Cessna 525 |
Fixed-wing, multi-engine | Whiting Wings LLC Alexander, Arkansas |
Standard | 2009-04-07 | ValidFAA registration status code V: Valid registration. All codes |
| N392RG | Cessna 525 |
Fixed-wing, multi-engine | Whitt Aviation LLC Lannon, Wisconsin |
Standard | 2009-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N823L | Cessna 525A |
Fixed-wing, multi-engine | Napa Aviation LLC Napa, California |
Standard | 2009-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N70KW | Cessna 525A |
Fixed-wing, multi-engine | Wilair LLC Memphis, Tennessee |
Standard | 2009-01-15 | ValidFAA registration status code V: Valid registration. All codes |
| N489CB | Cessna 525 |
Fixed-wing, multi-engine | Air Giant LLC Watsonville, California |
Standard | 2008-05-09 | ValidFAA registration status code V: Valid registration. All codes |
| N525WC | Cessna 525 |
Fixed-wing, multi-engine | Option Air LLC Lawrence, Massachusetts |
Standard | 2007-11-05 | ValidFAA registration status code V: Valid registration. All codes |
| N350BV | Cessna 525A |
Fixed-wing, multi-engine | Diane S Lake-Ca LLC Bakersfield, California |
Standard | 2007-07-20 | ValidFAA registration status code V: Valid registration. All codes |
| N18TF | Cessna 525A |
Fixed-wing, multi-engine | Airflite Financial Company LLC Alpena, Michigan |
Standard | 2007-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N262BK | Cessna 525 |
Fixed-wing, multi-engine | Omicron Business Services INC Winter Park, Florida |
Standard | 2007-03-23 | ValidFAA registration status code V: Valid registration. All codes |
| N525BW | Cessna 525 |
Fixed-wing, multi-engine | Standard | 2007-02-01 | ValidFAA registration status code V: Valid registration. All codes | |
| N592DR | Cessna 525A |
Fixed-wing, multi-engine | Western Oilfields Supply CO Bakersfield, California |
Standard | 2007-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N913DC | Cessna 525A |
Fixed-wing, multi-engine | Rico Aviation LLC Amarillo, Texas |
Standard | 2006-05-01 | ValidFAA registration status code V: Valid registration. All codes |
| N885BT | Cessna 525B |
Fixed-wing, multi-engine | Pegasus Air INC Cody, Wyoming |
Standard | 2006-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N628CB | Cessna 525B |
Fixed-wing, multi-engine | Cimarron Aviation INC Bend, Oregon |
Standard | 2005-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N996JR | Cessna 525 |
Fixed-wing, multi-engine | Individual owner Nevada |
Standard | 2005-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N3CT | Cessna 525B |
Fixed-wing, multi-engine | Inncal LLC Stockton, California |
Standard | 2005-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N351BC | Cessna 525 |
Fixed-wing, multi-engine | International Bank of Commerce Laredo, Texas |
Standard | 2005-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N747AC | Cessna 525 |
Fixed-wing, multi-engine | Going Going Gone LLC North Las Vegas, Nevada |
Standard | 2005-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N614B | Cessna 525B |
Fixed-wing, multi-engine | Ross Aviation INC Cortland, Ohio |
Standard | 2005-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N915MP | Cessna 525A |
Fixed-wing, multi-engine | Finnegan Air INC Lewis Center, Ohio |
Standard | 2005-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N25LZ | Cessna 525A |
Fixed-wing, multi-engine | Lima Zulu Aircraft CORP Los Angeles, California |
Standard | 2005-03-29 | ValidFAA registration status code V: Valid registration. All codes |
| N7CC | Cessna 525B |
Fixed-wing, multi-engine | Intrust Financial CORP Wichita, Kansas |
Standard | 2005-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N1127K | Cessna 525 |
Fixed-wing, multi-engine | Individual owner Nevada |
Standard | 2004-05-18 | ValidFAA registration status code V: Valid registration. All codes |
| N152KV | Cessna 525 |
Fixed-wing, multi-engine | Plane House LLC Indianapolis, Indiana |
Standard | 2004-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N525KA | Cessna 525 |
Fixed-wing, multi-engine | Physical Systems INC Carson City, Nevada |
Standard | 2004-01-30 | ValidFAA registration status code V: Valid registration. All codes |
| N475DH | Cessna 525A |
Fixed-wing, multi-engine | Design Homes INC Prairie du Chien, Wisconsin |
Standard | 2002-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N8341C | Cessna 525 |
Fixed-wing, multi-engine | Air Commander LLC Woodbury, Minnesota |
Standard | 2002-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N1277E | Cessna 525A |
Fixed-wing, multi-engine | Heaven Express LLC Corralitos, California |
Standard | 2002-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N969RE | Raytheon Aircraft Company 390 |
Fixed-wing, multi-engine | 390 LLC Las Vegas, Nevada |
Standard | 2002-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N620BB | Cessna 525 |
Fixed-wing, multi-engine | Co-owned owner New York |
Standard | 2001-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N288G | Cessna 525A |
Fixed-wing, multi-engine | Airdine LLC San Francisco, California |
Standard | 2001-10-23 | ValidFAA registration status code V: Valid registration. All codes |
| N561BC | Cessna 525 |
Fixed-wing, multi-engine | International Bank of Commerce Laredo, Texas |
Standard | 2001-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N77DB | Cessna 525 |
Fixed-wing, multi-engine | Darrigo Bros CO of California Salinas, California |
Standard | 2001-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N909M | Cessna 525 |
Fixed-wing, multi-engine | Wilmington Trust CO Trustee Wilmington, Delaware |
Standard | 1998-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N7TK | Cessna 501 |
Fixed-wing, multi-engine | Individual owner Wyoming |
Standard | 1989-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N328CJ | Cessna 525 |
Fixed-wing, multi-engine | Individual owner Tennessee |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N57FL | Cessna 525A |
Fixed-wing, multi-engine | Individual owner Nevada |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N89CJ | Cessna 525C |
Fixed-wing, multi-engine | No owner on file | Standard | Assigned, not yet registeredFAA registration status code 4: N-number assigned as an import, not yet registered. All codes |
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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.