Engines · piston (reciprocating) · data as of October 8, 2026

Continental TSIO-520 series

4,114 aircraft on the U.S. register carry a Continental TSIO-520 series engine, rated at about 300 horsepower. The Cessna T210 Turbo Centurion is the model most often fitted with it (1,006 aircraft). The aircraft carrying it were built between 1967 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 TSIO-520 series (2 codes). FAA spellings: TSIO-520 SER · TSIO 520 SER.

Fitted to model families

Model families, as a table

	aircraft
Cessna T210 Turbo Centurion	1,006
Cessna 340	571
Cessna 414 Chancellor	477
Cessna P210 Pressurized Centurion	375
Beechcraft 58 Baron	312
Beechcraft B36 Bonanza	237
Cessna TU206	233
Piper PA-46 Malibu, Mirage, Matrix and M-Class	169
Beechcraft A36 Bonanza	155
Cessna T-310	153
Cessna 402	137
Cessna T303	44

Cessna T210 Turbo Centurion · Cessna 340 · Cessna 414 Chancellor · Cessna P210 Pressurized Centurion · Beechcraft 58 Baron · Beechcraft B36 Bonanza · Cessna TU206 · Piper PA-46 Malibu, Mirage, Matrix and M-Class · Beechcraft A36 Bonanza · Cessna T-310

Where they are owner's state

Texas484California481Florida267Delaware191Arizona181Colorado172Montana134Washington111Nevada98Idaho98

By state, as a table

	aircraft
Texas	484
California	481
Florida	267
Delaware	191
Arizona	181
Colorado	172
Montana	134
Washington	111
Nevada	98
Idaho	98

Kind of aircraft

Piston singles2,314 (56%)Piston twins1,785 (43%)Turboprops15 (0.4%)

By kind, as a table

	aircraft	share
Piston singles	2,314	56%
Piston twins	1,785	43%
Turboprops	15	0.4%

When the aircraft were built by decade

By decade built, as a table

	aircraft
1940	4
1950	2
1960	80
1970	2,151
1980	1,302
1990	89
2000	31

What the FAA has certified, ordered and been told about the Continental TSIO-520 series the component layer

The design is held under 1 type certificate (E8CE, held by Continental Aerospace Technologies, INC.). The FAA has issued 36 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 411 failure reports with the FAA since 1995, 9 of them in the last ten years.

FAA orders 36 airworthiness directives · newest first

2023-10-262023-17-04 · Reciprocating Engine Oil System · engine

2023-07-172023-09-09 · Exhaust Turbine System (Recip) · engine

2023-03-152023-05-16 · Reciprocating Engine Power Section · engine

2023-02-232023-04-08 · Reciprocating Engine Power Section · engine

2023-02-172023-02-12 · Engine Air Intake System · engine

2022-08-152022-16-03 · Engine (RECIPROCATING) · engine

All orders naming the Continental TSIO-520 series

Failure reports 411 since · what operators and shops told the FAA

Failure reports by year, as a table

	reports
96	2
97	3
98	1
99	1
00	5
01	65
02	76
03	57
04	37
05	43
06	11
07	21
08	14
09	6
10	20
11	8
12	9
13	7
14	6
15	4
16	6
19	2
20	3
24	1
25	1
26	2

Parts most often reported as the reports name them

Cylinder25Master Switch21Line20Control Cable14Bolt12Relay10Pump9Actuator8Alternator8Skin8

Parts most reported, as a table

	reports
Cylinder	25
Master Switch	21
Line	20
Control Cable	14
Bolt	12
Relay	10
Pump	9
Actuator	8
Alternator	8
Skin	8

Latest reports

2026-05-07Alternator: destroyed

2025-09-12Pump: leaking

2024-03-15Cylinder Head: separated

2020-12-24Fitting: broken

Certificates and bulletins

E8CEType certificate held by Continental Aerospace Technologies, INC. · 31 models listed · revised April 6, 2020

Safety bulletins 11 · advice, not orders

2020-04-06NE-20-05 · POWERPLANT - Engine Camshaft Gear Tooth Fracture

2018-06-20NE-18-16 · POWERPLANT Alternator Drive Coupling

2017-05-10NE-17-11 · POWERPLANT Engine damage as a result of kickback

2016-03-08NE-16-13 · Powerplant - Prohibited use of sealant

2013-02-08NE-13-15 · Engine Controls: Continental Motors, Inc. (CMI) Throttle and Mixture Control Levers

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 T210 Turbo Centurion 1,006 with this engine series
Cessna 340 571 with this engine series
Cessna 414 Chancellor 477 with this engine series
Cessna P210 Pressurized Centurion 375 with this engine series
Beechcraft 58 Baron 312 with this engine series
Beechcraft B36 Bonanza 237 with this engine series
Cessna TU206 233 with this engine series
Piper PA-46 Malibu, Mirage, Matrix and M-Class 169 with this engine series

Where they are

Texas 484 of these aircraft
California 481 of these aircraft
Florida 267 of these aircraft
Delaware 191 of these aircraft
Arizona 181 of these aircraft

Biggest operators

Hyannis Air Service INC 36 of these aircraft
Bas Part Sales LLC 26 of these aircraft
Hyannis Air Service INC DBA 21 of these aircraft
Sky West Aviation INC Trustee 19 of these aircraft
Dodson International Parts INC 12 of these aircraft

Airworthiness

FAA orders naming the Continental TSIO-520 series 36 airworthiness directives
Failure reports on the Continental TSIO-520 series 411 reports since 1995

Analytics

The whole map of how records connect · these connections as data: /graph/engine/continental-tsio-520-series.json.

Aircraft newest certificates first · 4,114

Tail no.	Maker and model	Group	Owner and base	Certificate	Registered	Status
N6493N	Cessna T210N	Fixed-wing, single engine	Eagle Cap Leasing INC Enterprise, Oregon	Standard	1992-04-21	Valid
N402RS	Cessna 402C	Fixed-wing, multi-engine	Tropical Transport Services LTD San Jaun, Puerto Rico	Standard	1992-04-13	Valid
N351AB	Cessna 402C	Fixed-wing, multi-engine	Tropical Transport Services LTD San Juan, Puerto Rico	Standard	1992-03-26	Valid
N920CB	Beech 58P	Fixed-wing, multi-engine	Ogden Newspapers INC Wheeling, West Virginia	Standard	1992-03-05	Valid
N233GK	Beech V35A	Fixed-wing, single engine	Individual owner California	Standard	1992-02-27	Valid
N6908P	Piper PA-46-310P	Fixed-wing, single engine	Six Six Hotel Corporation Bangor, Pennsylvania	Standard	1992-01-28	Valid
N1556T	Cessna 414	Fixed-wing, multi-engine	California Energy Exchange CORP Rancho Cordova, California	Standard	1992-01-22	Valid
N56MA	Cessna 340A	Fixed-wing, multi-engine	Minuteman Aviation INC Missoula, Montana	Standard	1991-12-19	Valid
N210LT	Cessna T210N	Fixed-wing, single engine	Alta Pump CO INC Reedley, California	Standard	1991-12-13	Valid
N162DF	Beech 58P	Fixed-wing, multi-engine	Faford Aviation Leasing CO Atherton, California	Standard	1991-11-20	Valid
N3VB	Cessna 320D	Fixed-wing, multi-engine	Co-owned owner Texas	Standard	1991-11-16	Valid
N310KM	Cessna T310R	Fixed-wing, multi-engine	Stitt Consulting INC Titusville, Florida	Standard	1991-09-30	Valid
N1786X	Cessna T210L	Fixed-wing, single engine	S K Cattle CO Manhattan, Kansas	Standard	1991-08-22	Valid
N210T	Cessna T210M	Fixed-wing, single engine	Individual owner Texas	Standard	1991-08-10	Valid
N4156T	Cessna 320D	Fixed-wing, multi-engine	Individual owner Texas	Standard	1991-08-10	Valid
N401MP	Cessna P210N	Fixed-wing, single engine	Miami-Dade Sheriffs Office Doral, Florida	Standard	1991-08-06	Valid
N699EE	Cessna T210L	Fixed-wing, single engine	Individual owner California	Standard	1991-07-15	Valid
N5348Y	Cessna T210N	Fixed-wing, single engine	Individual owner Colorado	Standard	1991-06-27	Valid
N3690N	Beech A36TC	Fixed-wing, single engine	Co-owned owner New York	Standard	1991-06-18	Valid
N7584N	Cessna TU206G	Fixed-wing, single engine	Carto Flight INC Willoughby, Ohio	Experimental	1991-04-26	Valid
N37236	Beech A36TC	Fixed-wing, single engine	Individual owner Utah	Standard	1991-04-15	Valid
N11BC	Beech B36TC	Fixed-wing, single engine	Individual owner Colorado	Standard	1991-03-27	Valid
N34VF	Cessna P210N	Fixed-wing, single engine	Romag Air Services INC Mc Lean, Virginia	Standard	1991-03-14	Valid
N5517U	Cessna T210N	Fixed-wing, single engine	Individual owner Michigan	Standard	1991-03-01	Valid
N93186	Cessna T210L	Fixed-wing, single engine	Individual owner Washington	Standard	1991-01-08	Valid
N340MK	Cessna 340A	Fixed-wing, multi-engine	Milbern Aircraft Corporation Brooklyn, New York	Standard	1991-01-02	Valid
N87481	Cessna T310R	Fixed-wing, multi-engine	Individual owner Arizona	Standard	1990-12-06	Valid
N50901	Cessna TU206F	Fixed-wing, single engine	United Indian Missions INC DBA Tucson, Arizona	Standard	1990-11-14	Valid
N166Z	Cessna TU206G	Fixed-wing, single engine	Usda Forest Service Fire & Aviation Boise, Idaho	Standard	1990-11-06	Valid
N4057C	Cessna 414A	Fixed-wing, multi-engine	Aberdeen Flying Service Aberdeen, South Dakota	Standard	1990-10-22	Valid
N555RC	Cessna T210L	Fixed-wing, single engine	Co-owned owner Florida	Standard	1990-08-21	Valid
N88555	Cessna 340A	Fixed-wing, multi-engine	Individual owner Washington	Standard	1990-06-27	Valid
N2134U	Cessna T210N	Fixed-wing, single engine	Dean Steel Buildings INC Fort Myers, Florida	Standard	1990-06-21	Valid
N36939	Beech A36TC	Fixed-wing, single engine	Holtzen Farms INC Jerome, Idaho	Standard	1990-06-19	Valid
N732BA	Cessna T210L	Fixed-wing, single engine	Individual owner Ohio	Standard	1990-04-10	Valid
N1410U	Cessna T210N	Fixed-wing, single engine	Ruffcorn Aviation CO Bettondorf, Iowa	Standard	1990-04-03	Valid
N305MM	Beech A36TC	Fixed-wing, single engine	Individual owner Illinois	Standard	1990-04-02	Valid
N92903	Cessna T310R	Fixed-wing, multi-engine	Individual owner Texas	Standard	1990-01-10	Valid
N6397B	Cessna T210M	Fixed-wing, single engine	Individual owner Georgia	Standard	1989-11-30	Valid
N72DT	Piper PA-46-310P	Fixed-wing, single engine	Malibu Aviation INC Wichita, Kansas	Standard	1989-11-15	Valid
N3663K	Beech A36TC	Fixed-wing, single engine	Evans and Evans Properties INC Santa Cruz, California	Standard	1989-11-07	Valid
N9848M	Cessna TU206G	Fixed-wing, single engine	Covington Aircraft Engines INC Okmulgee, Oklahoma	Standard	1989-10-12	Valid
N7875E	Cessna 402B	Fixed-wing, multi-engine	University Research Foundation Greenbelt, Maryland	Standard	1989-10-06	Valid
N6398Y	Cessna T210N	Fixed-wing, single engine	Singlepoint Technologies CORP Richmond, Virginia	Standard	1989-10-04	Valid
N354BW	Beech A36TC	Fixed-wing, single engine	Individual owner Oregon	Standard	1989-09-21	Valid
N29176	Cessna T210L	Fixed-wing, single engine	Co-owned owner California	Standard	1989-08-30	Valid
N206GA	Cessna TU206G	Fixed-wing, single engine	Prijatel Thomas J Cordova, Alaska	Standard	1989-08-08	Valid
N1400	Cessna P210N	Fixed-wing, single engine	Individual owner California	Standard	1989-08-07	Valid
N340PJ	Cessna 340	Fixed-wing, multi-engine	Premier Jets INC Hillsboro, Oregon	Standard	1989-07-31	Valid
N3636T	Beech A36TC	Fixed-wing, single engine	Co-owned owner California	Standard	1989-07-08	Valid
N4978U	Cessna TU206G	Fixed-wing, single engine	Individual owner Oregon	Standard	1989-07-06	Valid
N8475M	Cessna T210M	Fixed-wing, single engine	Spess Drilling CO INC Cleveland, Oklahoma	Standard	1989-05-25	Valid
N340MF	Cessna 340A	Fixed-wing, multi-engine	Merrill Farms Corral de Tierra, California	Standard	1989-05-19	Valid
N30516	Cessna T210L	Fixed-wing, single engine	J A Sutherland INC Ukiah, California	Standard	1989-05-17	Valid
N2258J	Cessna T188C	Fixed-wing, single engine	Individual owner Montana	Restricted	1989-05-04	Valid
N7561N	Cessna TU206G	Fixed-wing, single engine	Pierce County Sheriffs Department South Hill, Washington	Standard	1989-05-02	Valid
N5037Q	Cessna 340	Fixed-wing, multi-engine	Individual owner Minnesota	Standard	1989-03-29	Valid
N2260S	Cessna T210L	Fixed-wing, single engine	Co-owned owner California	Standard	1988-11-29	Valid
N414AT	Cessna 414A	Fixed-wing, multi-engine	Individual owner Kentucky	Standard	1988-11-23	Valid
N2028S	Cessna T210L	Fixed-wing, single engine	Co-owned owner Colorado	Standard	1988-11-10	Valid
N6675A	Beech A36TC	Fixed-wing, single engine	Tool Equipment Leasing Corporation Bethany, Oklahoma	Standard	1988-07-20	Valid
N50CB	Cessna 414A	Fixed-wing, multi-engine	Individual owner Montana	Standard	1988-05-11	Valid
N990MD	Beech S35	Fixed-wing, single engine	Individual owner Delaware	Standard	1988-05-06	Valid
N24NH	Cessna T210N	Fixed-wing, single engine	Individual owner Michigan	Standard	1988-03-02	Valid
N4610K	Cessna P210N	Fixed-wing, single engine	Avag INC Richvale, California	Standard	1988-02-26	Valid
N818PC	Cessna P210N	Fixed-wing, single engine	Windigo Transportation INC Waterloo, Iowa	Standard	1988-02-20	Valid
N116EA	Cessna 340	Fixed-wing, multi-engine	Lewistown Aviation INC Lewistown, Pennsylvania	Standard	1987-12-07	Valid
N826MT	Beech 58TC	Fixed-wing, multi-engine	G T Acft INC Franklin Square, New York	Standard	1987-11-23	Valid
N97E	Cessna T210N	Fixed-wing, single engine	Kern County Sheriffs Department Bakersfield, California	Standard	1987-09-09	Valid
N6617C	Cessna T210N	Fixed-wing, single engine	N6617C INC Calumet City, Illinois	Standard	1987-08-04	Valid
N18MR	Cessna 340A	Fixed-wing, multi-engine	Morey Airplane CO INC Middleton, Wisconsin	Standard	1987-08-01	Valid
N5302V	Cessna T210L	Fixed-wing, single engine	Individual owner Florida	Standard	1987-04-06	Valid
N2638X	Cessna T310R	Fixed-wing, multi-engine	Software 2000 INC Arroyo Grande, California	Standard	1987-03-06	Valid
N7225H	Beech 58P	Fixed-wing, multi-engine	Cosmo Plastics Company Pepper Pike, Ohio	Standard	1987-02-05	Valid
N888EA	Cessna TU206F	Fixed-wing, single engine	Individual owner Texas	Standard	1986-09-24	Valid
N9928Y	Cessna T210N	Fixed-wing, single engine	Individual owner Missouri	Standard	1986-09-19	Valid
N340LZ	Cessna 340	Fixed-wing, multi-engine	Western Radiation Oncology Assoc PC Great Falls, Montana	Standard	1986-05-06	Valid
N210FV	Cessna P210N	Fixed-wing, single engine	Avoyelles Rental CORP Bunkie, Louisiana	Standard	1986-04-16	Valid
N118BH	Cessna 340A	Fixed-wing, multi-engine	Bighorn Airways INC Sheridan, Wyoming	Standard	1986-01-22	Valid
N5314V	Cessna T210L	Fixed-wing, single engine	Individual owner Illinois	Standard	1985-12-09	Valid
N7200H	Beech B36TC	Fixed-wing, single engine	Individual owner Florida	Standard	1985-09-24	Valid
N756JT	Cessna TU206G	Fixed-wing, single engine	Rackley CO INC Orland, California	Standard	1985-05-15	Valid
N6976N	Cessna T210N	Fixed-wing, single engine	Individual owner California	Standard	1985-05-14	Valid
N210TJ	Cessna T210N	Fixed-wing, single engine	Jaco Oil Company Bakersfield, California	Standard	1985-04-24	Valid
N2709B	Cessna 335	Fixed-wing, multi-engine	A&R Investments INC Sylvania, Ohio	Standard	1985-01-02	Valid
N6HG	Cessna T210M	Fixed-wing, single engine	Individual owner North Carolina	Standard	1984-12-26	Valid
N761VW	Cessna T210M	Fixed-wing, single engine	Individual owner Wyoming	Standard	1984-11-28	Valid
N8516G	Cessna 340A	Fixed-wing, multi-engine	Tri-State Management CORP Thomasville, Georgia	Standard	1984-10-31	Valid
N732AD	Cessna T210L	Fixed-wing, single engine	Individual owner South Dakota	Standard	1984-08-28	Valid
N78KW	Cessna TU206F	Fixed-wing, single engine	Individual owner Texas	Standard	1984-05-24	Valid
N802MS	Cessna T210N	Fixed-wing, single engine	Marotta Scientific Controls INC Montville, New Jersey	Standard	1984-05-04	Valid
N41DN	Nevels Donald CASSUTT III	Fixed-wing, single engine	Co-owned owner Missouri	Experimental	1984-03-06	Valid
N5338A	Cessna T210N	Fixed-wing, single engine	Individual owner Ohio	Standard	1984-02-21	Valid
N5395V	Cessna T210L	Fixed-wing, single engine	Cortez Flying Service INC Cortez, Colorado	Standard	1983-11-10	Valid
N5550Y	Cessna T210N	Fixed-wing, single engine	Individual owner Texas	Standard	1983-10-26	Valid
N2745F	Cessna 340A	Fixed-wing, multi-engine	Alexander Production CO San Antonio, Texas	Standard	1983-10-25	Valid
N6450Y	Cessna T210N	Fixed-wing, single engine	Attica Flyers INC Lafayette, Indiana	Standard	1983-08-24	Valid
N1676U	Cessna T210N	Fixed-wing, single engine	Digicam CO Henderson, Nevada	Standard	1983-07-11	Valid
N22KM	Cessna T210L	Fixed-wing, single engine	Co-owned owner California	Standard	1983-04-23	Valid
N76BL	Cessna T210L	Fixed-wing, single engine	Bravo Lima CORP Lakewood, Colorado	Standard	1982-12-10	Valid

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.

	reports
96	2
97	3
98	1
99	1
00	5
01	65
02	76
03	57
04	37
05	43
06	11
07	21
08	14
09	6
10	20
11	8
12	9
13	7
14	6
15	4
16	6
19	2
20	3
24	1
25	1
26	2

	reports
96	2
97	3
98	1
99	1
00	5
01	65
02	76
03	57
04	37
05	43
06	11
07	21
08	14
09	6
10	20
11	8
12	9
13	7
14	6
15	4
16	6
19	2
20	3
24	1
25	1
26	2

	reports
96	2
97	3
98	1
99	1
00	5
01	65
02	76
03	57
04	37
05	43
06	11
07	21
08	14
09	6
10	20
11	8
12	9
13	7
14	6
15	4
16	6
19	2
20	3
24	1
25	1
26	2