Continental GTSIO-520-C
387 aircraft on the U.S. register carry a Continental GTSIO-520-C engine, rated at about 340 horsepower. The Cessna 421 Golden Eagle is the model most often fitted with it (204 aircraft). The aircraft carrying it were built between 1965 and 2003.
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 Continental GTSIO-520-C. FAA spelling: GTSIO-520-C.
Fitted to model families
Cessna 421 Golden Eagle204Cessna T210 Turbo Centurion61Beechcraft V35 Bonanza23Cessna 32014Cessna TU20612Cessna TP20610Cessna T-3109Cessna 414 Chancellor8Cessna 4118Cessna 4017Cirrus SR206Aero Commander 6855
Cessna 421 Golden Eagle · Cessna T210 Turbo Centurion · Beechcraft V35 Bonanza · Cessna 320 · Cessna TU206 · Cessna TP206 · Cessna T-310 · Cessna 414 Chancellor · Cessna 411 · Cessna 401
Where they are owner's state
Florida37Texas36California36Colorado26Delaware18Arizona17Oregon16Oklahoma14Kansas14Utah12
Kind of aircraft
Piston twins265 (68%)Piston singles122 (32%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Continental GTSIO-520-C the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 44 failure reports with the FAA since 1995, 15 of them in the last ten years.
Failure reports 44 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Cylinder15Blade3Alternator1Antenna1Bearing1Bolt1Bracket1Bulkhead1Circuit Breaker1Clamp1
Latest reports
2015-09-22Governor: failed
2015-07-28Control Cable: disconnected
2014-12-25Screw: sheared
2014-04-03Alternator: failed
2012-08-24Clamp: cracked
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 421 Golden Eagle 204 with this engine series
- Cessna T210 Turbo Centurion 61 with this engine series
- Beechcraft V35 Bonanza 23 with this engine series
- Cessna 320 14 with this engine series
- Cessna TU206 12 with this engine series
- Cessna TP206 10 with this engine series
- Cessna T-310 9 with this engine series
- Cessna 414 Chancellor 8 with this engine series
Where they are
- Florida 37 of these aircraft
- Texas 36 of these aircraft
- California 36 of these aircraft
- Colorado 26 of these aircraft
- Delaware 18 of these aircraft
Biggest operators
- Bas Part Sales LLC 5 of these aircraft
- Tvpx Aircraft Solutions INC Trustee 3 of these aircraft
- Valiair Lc Trustee 2 of these aircraft
- Dodson International Parts INC 2 of these aircraft
Airworthiness
- Failure reports on the Continental GTSIO-520-C 44 reports since 1995
Analytics
These connections as data: /graph/engine/continental-gtsio-520-c.json · about the eFlight graph.
Aircraft newest certificates first · 387
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N421BC | Cessna 421C |
Fixed-wing, multi-engine | Spray Brothers Aviation LLC Great Bend, Kansas |
Standard | 2013-07-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6736R | Cessna T210F |
Fixed-wing, single engine | D Kevin Lester MD INC Fresno, California |
Standard | 2013-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N7000L | Cessna TU206F |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2013-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N234DA | Cessna 421B |
Fixed-wing, multi-engine | Destination Management LLC Tulsa, Oklahoma |
Standard | 2013-03-27 | ValidFAA registration status code V: Valid registration. All codes |
| N421PR | Cessna 421C |
Fixed-wing, multi-engine | Personal Air LLC Wilmington, Delaware |
Standard | 2012-12-19 | ValidFAA registration status code V: Valid registration. All codes |
| N800SM | Cessna 421B |
Fixed-wing, multi-engine | Individual owner California |
Standard | 2012-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N726RT | Cessna 421C |
Fixed-wing, multi-engine | Crotts Aircraft Service INC Dodge City, Kansas |
Standard | 2012-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N977SM | Cessna 421B |
Fixed-wing, multi-engine | Kmc Aviation Leasing LLC Indianapolis, Indiana |
Standard | 2012-04-23 | ValidFAA registration status code V: Valid registration. All codes |
| N75CB | Cessna 421B |
Fixed-wing, multi-engine | Eastmann Transport Services LLC El Paso, Texas |
Standard | 2012-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N8229Q | Cessna 414 |
Fixed-wing, multi-engine | Co-owned owner California |
Standard | 2012-02-24 | ValidFAA registration status code V: Valid registration. All codes |
| N91016 | Cessna T207 |
Fixed-wing, single engine | Co-owned owner New Jersey |
Standard | 2012-02-16 | ValidFAA registration status code V: Valid registration. All codes |
| N111EC | Beech V35 |
Fixed-wing, single engine | Gs Wings INC Pawnee, Illinois |
Standard | 2011-10-19 | ValidFAA registration status code V: Valid registration. All codes |
| N422M | Cirrus Design Corp SR20 |
Fixed-wing, single engine | Aircraft Guaranty CORP Trustee Oklahoma City, Oklahoma |
Standard | 2011-09-01 | ValidFAA registration status code V: Valid registration. All codes |
| N90193 | Cessna T207 |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2011-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N942SM | Cessna T210J |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2011-07-19 | ValidFAA registration status code V: Valid registration. All codes |
| N401RS | Cessna 401 |
Fixed-wing, multi-engine | Training Services INC DBA Virginia Beach, Virginia |
Standard | 2011-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N421MC | Cessna 421B |
Fixed-wing, multi-engine | Blue Bottom INC Los Angeles, California |
Standard | 2011-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N92PS | Cessna 421B |
Fixed-wing, multi-engine | Meshoppen Air LLC Tunkhannock, Pennsylvania |
Standard | 2011-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N2KD | Cessna T210J |
Fixed-wing, single engine | Elliott Frank F Mojave, California |
Standard | 2011-04-16 | ValidFAA registration status code V: Valid registration. All codes |
| N5889M | Cessna T-310P |
Fixed-wing, multi-engine | Co-owned owner South Dakota |
Standard | 2011-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N502RA | Cessna 404 |
Fixed-wing, multi-engine | Richland Aviation INC Sidney, Montana |
Standard | 2011-03-21 | ValidFAA registration status code V: Valid registration. All codes |
| N4572L | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Arkansas |
Standard | 2011-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N6732R | Cessna T210F |
Fixed-wing, single engine | Oregonian Flying Club Wilmington, Delaware |
Standard | 2011-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N1463C | Cirrus Design Corp SR20 |
Fixed-wing, single engine | Individual owner California |
Standard | 2011-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N400BJ | Cessna 421B |
Fixed-wing, multi-engine | Airrich LLC Largo, Florida |
Standard | 2010-07-06 | ValidFAA registration status code V: Valid registration. All codes |
| N5859M | Cessna 340 |
Fixed-wing, multi-engine | Jasper County Properties LLC Jasper, Texas |
Standard | 2010-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N33SQ | Cessna T210F |
Fixed-wing, single engine | Individual owner Wyoming |
Standard | 2009-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N29190 | Cessna T210L |
Fixed-wing, single engine | Mountain Helicopters LLC Salt Lake City, Utah |
Standard | 2009-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N6745R | Cessna T210F |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2009-03-11 | ValidFAA registration status code V: Valid registration. All codes |
| N8074Z | Cirrus Design Corp SR20 |
Fixed-wing, single engine | Individual owner Pennsylvania |
Standard | 2008-10-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6889R | Cessna T210G |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2008-08-11 | ValidFAA registration status code V: Valid registration. All codes |
| N4123T | Cessna 320D |
Fixed-wing, multi-engine | Individual owner Alaska |
Standard | 2008-04-09 | ValidFAA registration status code V: Valid registration. All codes |
| N7049N | Beech V35A |
Fixed-wing, single engine | J M Williams LLC Stockton, California |
Standard | 2008-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6192R | Cessna T210F |
Fixed-wing, single engine | Ambrosini Helicopters INC Fresno, California |
Standard | 2007-07-13 | ValidFAA registration status code V: Valid registration. All codes |
| N44SC | Cessna 421A |
Fixed-wing, multi-engine | Air Charter Solutions INC Bloomington, Minnesota |
Standard | 2007-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N8AV | Cessna 421B |
Fixed-wing, multi-engine | Otis Air Service INC Wichita, Kansas |
Standard | 2007-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N421RD | Cessna 421 |
Fixed-wing, multi-engine | Individual owner California |
Standard | 2006-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N31KT | Cessna 421B |
Fixed-wing, multi-engine | Individual owner California |
Standard | 2005-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N6803R | Cessna T210G |
Fixed-wing, single engine | N6803R LLC Kent, Ohio |
Standard | 2005-12-14 | ValidFAA registration status code V: Valid registration. All codes |
| N577CD | Cessna P206E |
Fixed-wing, single engine | Seger Properties LTD Fort Loramie, Ohio |
Standard | 2005-10-24 | ValidFAA registration status code V: Valid registration. All codes |
| N6724R | Cessna T210F |
Fixed-wing, single engine | Davis Lease LLC Fort Collins, Colorado |
Standard | 2005-09-09 | ValidFAA registration status code V: Valid registration. All codes |
| N5CH | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Arizona |
Standard | 2005-06-28 | ValidFAA registration status code V: Valid registration. All codes |
| N20MW | Cessna 421B |
Fixed-wing, multi-engine | Individual owner Ohio |
Standard | 2005-03-02 | ValidFAA registration status code V: Valid registration. All codes |
| N124WC | Cessna 421B |
Fixed-wing, multi-engine | 3-B Farms INC Pinetown, North Carolina |
Standard | 2005-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N421AH | Cessna 421B |
Fixed-wing, multi-engine | J R Herring Enterprises INC Wellington, Florida |
Standard | 2004-06-14 | ValidFAA registration status code V: Valid registration. All codes |
| N4074L | Cessna 421 |
Fixed-wing, multi-engine | Eminent Technology Tallahassee, Florida |
Standard | 2004-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N112AL | Cessna 421C |
Fixed-wing, multi-engine | Passport Auto & Aviation INC Richmond, Virginia |
Standard | 2003-11-25 | ValidFAA registration status code V: Valid registration. All codes |
| N8047Q | Cessna 421B |
Fixed-wing, multi-engine | Air Boys INC Hayward, Wisconsin |
Standard | 2003-11-01 | ValidFAA registration status code V: Valid registration. All codes |
| N5843M | Cessna T-310P |
Fixed-wing, multi-engine | Eastern Aero LLC Gibsonville, North Carolina |
Standard | 2002-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N5768J | Cessna T210K |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2002-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N4807F | Cessna TU206A |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2001-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N6188R | Cessna T210F |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2000-12-11 | ValidFAA registration status code V: Valid registration. All codes |
| N50DL | Cessna 421B |
Fixed-wing, multi-engine | Sand Castle Management LLC Wichita, Kansas |
Standard | 2000-08-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6156Q | Cessna 320F |
Fixed-wing, multi-engine | Gem State Transportation INC Hamilton, Montana |
Standard | 1998-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N7DA | Cessna 402 |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 1997-10-28 | ValidFAA registration status code V: Valid registration. All codes |
| N678DB | Cessna 421B |
Fixed-wing, multi-engine | Golden Eagle Flight LLC Farmington, Utah |
Standard | 1996-11-26 | ValidFAA registration status code V: Valid registration. All codes |
| N1027D | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Idaho |
Standard | 1995-11-17 | ValidFAA registration status code V: Valid registration. All codes |
| N4825F | Cessna TU206A |
Fixed-wing, single engine | Individual owner California |
Standard | 1994-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N285N | Cessna 421 |
Fixed-wing, multi-engine | Totem Air INC Seattle, Washington |
Standard | 1994-04-14 | ValidFAA registration status code V: Valid registration. All codes |
| N421MW | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 1993-11-22 | ValidFAA registration status code V: Valid registration. All codes |
| N333SF | Cessna 411A |
Fixed-wing, multi-engine | Individual owner Florida |
Standard | 1993-07-15 | ValidFAA registration status code V: Valid registration. All codes |
| N5444U | Beech V35 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 1992-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N3398Q | Cessna 421A |
Fixed-wing, multi-engine | Individual owner North Dakota |
Standard | 1991-07-25 | ValidFAA registration status code V: Valid registration. All codes |
| N421MR | Cessna 421 |
Fixed-wing, multi-engine | Quest Aviation INC Lake City, Florida |
Standard | 1991-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N411DC | Cessna 411 |
Fixed-wing, multi-engine | Individual owner California |
Standard | 1991-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N6824R | Cessna T210G |
Fixed-wing, single engine | Squadron 5 INC Saratoga, California |
Standard | 1990-10-11 | ValidFAA registration status code V: Valid registration. All codes |
| N676MF | Cessna 402B |
Fixed-wing, multi-engine | Coastal Resource Associates INC Christiansted, U.S. Virgin Islands |
Standard | 1988-05-24 | ValidFAA registration status code V: Valid registration. All codes |
| N3875G | Cessna TU206B |
Fixed-wing, single engine | Individual owner Idaho |
Standard | 1981-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N7624Q | Cessna 421B |
Fixed-wing, multi-engine | Fhs Aero CO Olathe, Kansas |
Standard | 1980-11-17 | ValidFAA registration status code V: Valid registration. All codes |
| N3720Q | Beech V35 |
Fixed-wing, single engine | M M & O Aviation INC Northglenn, Colorado |
Standard | 1980-09-09 | ValidFAA registration status code V: Valid registration. All codes |
| N251WW | Cessna 411A |
Fixed-wing, multi-engine | Individual owner Indiana |
Standard | 1977-02-11 | RevokedFAA registration status code 9: Registration certificate revoked. All codes |
| N1942G | Cessna 421B |
Fixed-wing, multi-engine | Bas Part Sales LLC Greeley, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N1944G | Cessna 421B |
Fixed-wing, multi-engine | Bas Part Sales LLC Greeley, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N208V | Cessna 421B |
Fixed-wing, multi-engine | Bas Part Sales LLC Greeley, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N20EZ | Cessna T-310P |
Fixed-wing, multi-engine | Individual owner Montana |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N21GF | Cessna 421B |
Fixed-wing, multi-engine | Bas Part Sales LLC Greeley, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N26GW | Beagle B.206 SERIES 2 |
Fixed-wing, multi-engine | Individual owner Florida |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N421BV | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Kansas |
Standard | Pending cancellationFAA registration status code 19: Registration pending, pending cancellation. All codes | |
| N421DK | Cessna 421B |
Fixed-wing, multi-engine | Individual owner California |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N421HR | Cessna 421B |
Fixed-wing, multi-engine | Rons Air Service INC Two Buttes, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N421Z | Cessna 421 |
Fixed-wing, multi-engine | Individual owner Oklahoma |
Standard | Sale reportedFAA registration status code 7. All codes | |
| N42BJ | Cessna 421B |
Fixed-wing, multi-engine | Individual owner Florida |
Standard | Pending cancellationFAA registration status code 19: Registration pending, pending cancellation. All codes | |
| N639SC | Cessna 421A |
Fixed-wing, multi-engine | Individual owner Virginia |
Standard | Sale reportedFAA registration status code 7. All codes | |
| N6743R | Cessna T210F |
Fixed-wing, single engine | Bas Part Sales LLC Greeley, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N707DM | Cessna 421B |
Fixed-wing, multi-engine | Individual owner Maine |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N707SP | Cessna 421B |
Fixed-wing, multi-engine | Wagon Wheel Distributing INC Dallas, Texas |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N70DC | Cessna 421 |
Fixed-wing, multi-engine | Individual owner California |
Standard | Sale reportedFAA registration status code 7. 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.