Pratt & Whitney Canada PT6A-21
76 aircraft on the U.S. register carry a Pratt & Whitney Canada PT6A-21 engine, rated at about 550 horsepower. The Beechcraft C90 King Air C90 is the model most often fitted with it (68 aircraft). The aircraft carrying it were built between 1967 and 2007.
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 Pratt & Whitney Canada PT6A-21. FAA spelling: PT6A-21.
Fitted to model families
Beechcraft C90 King Air C9068Beechcraft B36 Bonanza3Piper PA-46 Malibu, Mirage, Matrix and M-Class3Beechcraft 651Schweizer Aircraft Corp G-1641
Beechcraft C90 King Air C90 · Beechcraft B36 Bonanza · Piper PA-46 Malibu, Mirage, Matrix and M-Class · Beechcraft 65 · Schweizer Aircraft Corp G-164
Where they are owner's state
Texas11Delaware7North Dakota6South Dakota5Florida5Louisiana4California4Kansas3Georgia3Wyoming2
Kind of aircraft
Turboprops72 (95%)Piston singles3 (4%)Gliders1 (1%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Pratt & Whitney Canada PT6A-21 the component layer
The design is held under 1 type certificate (E4EA, held by Pratt & Whitney Canada CORP.). The FAA has issued 5 airworthiness directives (orders that owners must comply with) that name this engine series.
FAA orders 5 airworthiness directives · newest first
2014-08-052014-11-05 · Reinforcement liner to the power turbine (PT) containment
ring and, for certain PT containment rings,... · engine
2002-12-312002-23-13 · Turbine Exhaust Ducts · engine
1997-03-1497-04-12 · Compressor Bleed-off Valve · engine
1992-08-1792-15-11 · Compressor Delivery Air Line (P3) Filter Assembly · engine
1980-04-1880-08-12 · Fuel Pump Drive Coupling Splines · engine
Certificates and bulletins
E4EAType certificate held by Pratt & Whitney Canada CORP. · 54 models listed · revised June 16, 2021
Safety bulletins 1 · advice, not orders
2011-11-01NE-12-04 · Turbine/ Turboprop Engine: Reduction Gearbox
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
- Beechcraft C90 King Air C90 68 with this engine series
- Beechcraft B36 Bonanza 3 with this engine series
- Piper PA-46 Malibu, Mirage, Matrix and M-Class 3 with this engine series
- Beechcraft 65 1 with this engine series
- Schweizer Aircraft Corp G-164 1 with this engine series
Where they are
- Texas 11 of these aircraft
- Delaware 7 of these aircraft
- North Dakota 6 of these aircraft
- South Dakota 5 of these aircraft
- Florida 5 of these aircraft
Biggest operators
- Guardian Flight LLC 8 of these aircraft
- Aerolease LLC 4 of these aircraft
- Eaglemed LLC 2 of these aircraft
- Dale Aviation INC 2 of these aircraft
- Aircraft Guaranty CORP Trustee 2 of these aircraft
Airworthiness
- FAA orders naming the Pratt & Whitney Canada PT6A-21 5 airworthiness directives
Analytics
These connections as data: /graph/engine/pratt-whitney-canada-pt6a-21.json · about the eFlight graph.
Aircraft newest certificates first · 76
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N131BL | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Lta Group Holdings LLC Amarillo, Texas |
Standard | 2026-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N11638 | Beech C90 |
Fixed-wing, multi-engine | N3701D LLC Wilmington, North Carolina |
Standard | 2026-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N910EH | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2026-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N422AS | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | American Aviation INC Brooksville, Florida |
Standard | 2026-03-09 | ValidFAA registration status code V: Valid registration. All codes |
| N290NC | Beech C90A |
Fixed-wing, multi-engine | Mr Boo Properties LLC Indianapolis, Indiana |
Standard | 2026-03-01 | ValidFAA registration status code V: Valid registration. All codes |
| N127MU | Beech C90A |
Fixed-wing, multi-engine | Southern Aircraft Consultancy INC Trustee Casper, Wyoming |
Standard | 2026-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N598AT | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Wohlford Aviation LLC Ashland, Nebraska |
Standard | 2026-02-02 | ValidFAA registration status code V: Valid registration. All codes |
| N126MM | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Freeman Holdings of West Texas LLC Medford, Oregon |
Standard | 2025-12-10 | ValidFAA registration status code V: Valid registration. All codes |
| N369RS | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Early Bird Air LLC Lawrence, Michigan |
Standard | 2025-11-29 | ValidFAA registration status code V: Valid registration. All codes |
| N4615C | Beech C90A |
Fixed-wing, multi-engine | North American Flight Services INC Ballston Spa, New York |
Standard | 2025-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N925AR | Beech C90 |
Fixed-wing, multi-engine | Rnjs Products LLC Lewes, Delaware |
Standard | 2025-08-07 | ValidFAA registration status code V: Valid registration. All codes |
| N129TN | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2025-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N757BA | Beech C90 |
Fixed-wing, multi-engine | Ww Air LLC Burwell, Nebraska |
Standard | 2025-06-19 | ValidFAA registration status code V: Valid registration. All codes |
| N687MM | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Buckeye Fluids LLC Wilmington, Delaware |
Standard | 2025-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N333TL | Beech C90 |
Fixed-wing, multi-engine | Brad and Jill Janecke LLC Pierre, South Dakota |
Standard | 2025-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N26AR | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Dale Aviation Rapid City, South Dakota |
Standard | 2025-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N135AA | Beech C90A |
Fixed-wing, multi-engine | Kentucky King Air LLC Hazard, Kentucky |
Standard | 2024-05-25 | ValidFAA registration status code V: Valid registration. All codes |
| N644JC | Beech C90 |
Fixed-wing, multi-engine | Bic Aviation LLC Fort Smith, Arkansas |
Standard | 2024-03-18 | ValidFAA registration status code V: Valid registration. All codes |
| N728DW | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Nela Management Services LLC Monroe, Louisiana |
Standard | 2024-01-10 | ValidFAA registration status code V: Valid registration. All codes |
| N997MD | Beech C90A |
Fixed-wing, multi-engine | Haynes Aviation LLC Wetumpka, Alabama |
Standard | 2023-11-26 | ValidFAA registration status code V: Valid registration. All codes |
| N92WE | Beech C90A |
Fixed-wing, multi-engine | Ince Aviation LLC Dover, Delaware |
Standard | 2023-11-15 | ValidFAA registration status code V: Valid registration. All codes |
| N6111V | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Sfh INC Fargo, North Dakota |
Multiple | 2023-04-22 | ValidFAA registration status code V: Valid registration. All codes |
| N252RC | Beech C90A |
Fixed-wing, multi-engine | Prestige Worldwide Flights Two LLC Imperial, California |
Standard | 2023-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N300AW | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Davis Aviation INC DBA Brandon, Mississippi |
Standard | 2023-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N431BG | Beech C90 |
Fixed-wing, multi-engine | Bismarck Air Medical LLC Bismarck, North Dakota |
Standard | 2022-12-07 | ValidFAA registration status code V: Valid registration. All codes |
| N909MJ | Beech C90A |
Fixed-wing, multi-engine | Steel Rock Services LLC Taylorsville, Mississippi |
Standard | 2022-11-18 | ValidFAA registration status code V: Valid registration. All codes |
| N140H | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Axis Transportation Services LLC Sacramento, California |
Standard | 2022-10-27 | ValidFAA registration status code V: Valid registration. All codes |
| N187AL | Beech C90 |
Fixed-wing, multi-engine | Alm Holdings Delaware 2 LLC Wilmington, Delaware |
Standard | 2022-08-30 | ValidFAA registration status code V: Valid registration. All codes |
| N751WY | Schweizer Aircraft Corp G-164B |
Fixed-wing, single engine | Co-owned owner Wyoming |
Restricted | 2022-08-03 | ValidFAA registration status code V: Valid registration. All codes |
| N82BC | Beech C90A |
Fixed-wing, multi-engine | Gulf Air Aviation INC Wilmington, Delaware |
Standard | 2022-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N125NJ | Beech C90 |
Fixed-wing, multi-engine | Aircraft Partner Holdings INC Trustee Fallbrook, California |
Standard | 2022-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N171MS | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Stick Ball Rudder LLC Bonita Springs, Florida |
Standard | 2022-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N350BR | New Piper Aircraft Inc PA-46-310P |
Fixed-wing, single engine | Mmhc Logistics LLC Memphis, Tennessee |
Standard | 2022-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N226BK | Beech C90A |
Fixed-wing, multi-engine | Avtran LLC Clayton, Missouri |
Standard | 2021-11-20 | ValidFAA registration status code V: Valid registration. All codes |
| N147LJ | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2021-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N61GN | Beech C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Special flight permit | 2021-10-13 | ValidFAA registration status code V: Valid registration. All codes |
| N787TT | Beech C90 |
Fixed-wing, multi-engine | Mjw Aviation LLC Beaumont, Texas |
Standard | 2021-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N904P | Beech C90A |
Fixed-wing, multi-engine | Speed Aviation INC Bay Minette, Alabama |
Standard | 2021-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N305ZA | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Zulu Air LLC Opa Locka, Florida |
Standard | 2021-03-06 | ValidFAA registration status code V: Valid registration. All codes |
| N246GT | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Western Pilot Service INC Phoenix, Arizona |
Standard | 2021-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N1212W | Beech C90A |
Fixed-wing, multi-engine | Two Drakes Air LLC Lizella, Georgia |
Standard | 2020-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N439PW | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | N439Pw LLC Destin, Florida |
Standard | 2020-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N640RJ | Beech C90 |
Fixed-wing, multi-engine | Midwest Executive LLC Reno, Nevada |
Standard | 2020-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N85TB | Beech C90 |
Fixed-wing, multi-engine | Central Virginia Aviation INC Petersburg, Virginia |
Standard | 2020-05-21 | ValidFAA registration status code V: Valid registration. All codes |
| N533GG | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Clf Houston Travel LLC Houston, Texas |
Standard | 2020-03-26 | ValidFAA registration status code V: Valid registration. All codes |
| N477M | Beech C90 |
Fixed-wing, multi-engine | Aircraft Unlimited INC Pierre, South Dakota |
Standard | 2019-05-03 | ValidFAA registration status code V: Valid registration. All codes |
| N43KE | Beech B36TC |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2018-11-27 | ValidFAA registration status code V: Valid registration. All codes |
| N463RS | Beech C90 |
Fixed-wing, multi-engine | Rts Aviation LLC Atlanta, Georgia |
Standard | 2018-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N518AG | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Kangaru Enterprises LLC Solvang, California |
Standard | 2018-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N53TJ | Beech C90A |
Fixed-wing, multi-engine | Nion LLC New Century, Kansas |
Experimental | 2018-01-23 | ValidFAA registration status code V: Valid registration. All codes |
| N415X | Piper PA 46-350P |
Fixed-wing, single engine | 3 Axis Aviation INC Trustee Wilmington, Delaware |
Standard | 2018-01-04 | ValidFAA registration status code V: Valid registration. All codes |
| N90AW | Beech C90 |
Fixed-wing, multi-engine | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2017-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N284MR | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Dale Aviation INC Rapid City, South Dakota |
Standard | 2017-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N170SE | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2017-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N692W | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2017-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N771PD | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2017-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N785JP | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Guardian Flight LLC Lewisville, Texas |
Standard | 2017-10-02 | ValidFAA registration status code V: Valid registration. All codes |
| N904HB | Beech C90A |
Fixed-wing, multi-engine | State of Louisiana Baton Rouge, Louisiana |
Multiple | 2016-11-30 | ValidFAA registration status code V: Valid registration. All codes |
| N396FS | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Aircraft Trust & Financing CORP Trustee Wilmington, Delaware |
Standard | 2016-11-08 | ValidFAA registration status code V: Valid registration. All codes |
| N59TA | Raytheon Aircraft Company B36TC |
Glider | Tailwinds Air INC Morganza, Louisiana |
Standard | 2015-10-16 | ValidFAA registration status code V: Valid registration. All codes |
| N888EF | Piper PA-46-310P |
Fixed-wing, single engine | Plane Fun INC Tr Trustee Snellville, Georgia |
Standard | 2015-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N495Y | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Eaglemed LLC Wichita, Kansas |
Standard | 2015-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N460EM | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Eaglemed LLC Wichita, Kansas |
Standard | 2015-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N127ZW | Beech C90A |
Fixed-wing, multi-engine | Aerolease LLC Fargo, North Dakota |
Standard | 2014-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N518TS | Beech C90A |
Fixed-wing, multi-engine | Aerolease LLC Fargo, North Dakota |
Multiple | 2013-08-14 | ValidFAA registration status code V: Valid registration. All codes |
| N362MC | Beech C90 |
Fixed-wing, multi-engine | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2012-12-13 | ValidFAA registration status code V: Valid registration. All codes |
| N484MC | Beech C90 |
Fixed-wing, multi-engine | Lee County Mosquito Control District Lehigh Acres, Florida |
Standard | 2012-08-29 | ValidFAA registration status code V: Valid registration. All codes |
| N422PM | Beech C90 |
Fixed-wing, multi-engine | Dale Aviation INC Rapid City, South Dakota |
Restricted | 2012-05-23 | ValidFAA registration status code V: Valid registration. All codes |
| N106DD | Raytheon Aircraft Company C90A |
Fixed-wing, multi-engine | Hlp Aviation LLC Shreveport, Louisiana |
Standard | 2007-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N709EA | Beech C90A |
Fixed-wing, multi-engine | Aerolease LLC Fargo, North Dakota |
Restricted | 2007-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N80R | Beech 65-A90-1 |
Fixed-wing, multi-engine | Dynamic Avlease INC Bridgewater, Virginia |
Multiple | 2007-02-13 | ValidFAA registration status code V: Valid registration. All codes |
| N904DK | Beech C90A |
Fixed-wing, multi-engine | Aerolease LLC Fargo, North Dakota |
Multiple | 2007-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N6754H | Beech C90 |
Fixed-wing, multi-engine | Aviation Communication and Surveillance Systems Phoenix, Arizona |
Experimental | 2002-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N200U | Beech C90A |
Fixed-wing, multi-engine | Ohio University Albany, Ohio |
Experimental | 2000-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N8254D | Beech B36TC |
Fixed-wing, single engine | West Pacific Air LLC Spokane, Washington |
Experimental | 1999-07-02 | ValidFAA registration status code V: Valid registration. All codes |
| N210EC | Beech C90 |
Fixed-wing, multi-engine | State of Tennessee Nashville, Tennessee |
Restricted | 1986-01-27 | 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.