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
N6233Z	Cessna TU206G	Fixed-wing, single engine	Mission Aviation Fellowship Nampa, Idaho	Standard	1982-11-17	Valid
N6496N	Beech B36TC	Fixed-wing, single engine	Fisher Ranch Corporation Blythe, California	Standard	1982-09-14	Valid
N9968J	Cessna T188C	Fixed-wing, single engine	Boening Bros Dusting & Spraying Scv Floresville, Texas	Restricted	1982-05-26	Valid
N5195A	Cessna T210N	Fixed-wing, single engine	Olson Brothers Williams, Arizona	Standard	1982-03-25	Valid
N4770K	Cessna P210N	Fixed-wing, single engine	Individual owner Florida	Standard	1982-03-02	Valid
N1807B	Beech A36TC	Fixed-wing, single engine	Cloud Nine CORP Batesville, Indiana	Standard	1982-02-25	Valid
N147TX	Cessna TU206G	Fixed-wing, single engine	Texas Department of Transportation Austin, Texas	Standard	1981-11-13	Valid
N4135T	Cessna 320D	Fixed-wing, multi-engine	Nehls Chevrolet Olds Cadillac Marshall, Texas	Standard	1981-11-02	Valid
N6240B	Cessna T210M	Fixed-wing, single engine	Van Treese Farms INC Monte Vista, Colorado	Standard	1981-03-19	Valid
N3151J	Cessna T188C	Fixed-wing, single engine	Individual owner Nebraska	Restricted	1981-02-19	Valid
N732WQ	Cessna T210M	Fixed-wing, single engine	Los Angeles County Sheriffs Department Long Beach, California	Standard	1980-11-20	Valid
N35957	Cessna TU206F	Fixed-wing, single engine	Cortez Flying Service INC Cortez, Colorado	Standard	1980-10-15	Valid
N6306C	Cessna T210N	Fixed-wing, single engine	Longs Air Conditioning INC Avon Park, Florida	Standard	1980-07-31	Valid
N761YW	Cessna T210M	Fixed-wing, single engine	Individual owner California	Standard	1979-07-20	Valid
N6667N	Cessna T210N	Fixed-wing, single engine	Individual owner Arkansas	Standard	1979-05-22	Valid
N1636X	Cessna T210L	Fixed-wing, single engine	Monke Farm & Cattle CO Nickerson, Nebraska	Standard	1979-04-03	Valid
N2538S	Cessna T210L	Fixed-wing, single engine	Co-owned owner Colorado	Standard	1979-03-06	Valid
N4560K	Ryan NAVION A	Fixed-wing, single engine	Withheld at owner's request	Standard	1979-01-04	Valid
N6152B	Cessna T210M	Fixed-wing, single engine	Mohave County Board of Supervisors Kingman, Arizona	Standard	1978-11-14	Valid
N210EB	Cessna T210M	Fixed-wing, single engine	Individual owner Idaho	Standard	1978-06-21	Valid
N761TC	Cessna T210M	Fixed-wing, single engine	Michigan Scientific CORP Milford, Michigan	Standard	1978-06-14	Valid
N732ZA	Cessna T210M	Fixed-wing, single engine	Northstar Center Properties Los Angeles, California	Standard	1978-05-17	Valid
N93867	Cessna T210L	Fixed-wing, single engine	Sunup Flyers Coop Moscow, Idaho	Standard	1977-07-26	Valid
N5265J	Cessna 414	Fixed-wing, multi-engine	Southern Machine and Steel INC Fort Myers, Florida	Standard	1976-11-15	Valid
N42NC	Cessna 402B	Fixed-wing, multi-engine	Capair INC Plantation, Florida	Standard	1976-01-02	Valid
N9604G	Cessna TU206F	Fixed-wing, single engine	Roberts Development Company INC Tucson, Arizona	Standard	1972-07-24	Valid
N11JA	Cessna 340A	Fixed-wing, multi-engine	Individual owner Texas	Standard		Pending
N11TC	Cessna T210M	Fixed-wing, single engine	Individual owner New Mexico	Standard		Canceled
N123CE	Cessna 210L	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N138PB	Beech 58P	Fixed-wing, multi-engine	South Delta Aviation INC West Helena, Arkansas	Standard		Valid
N1576M	Cessna T210M	Fixed-wing, single engine	Skyline Aviation Services LLC Miramar, Florida	Standard		Valid
N158RS	Beech 58P	Fixed-wing, multi-engine	Individual owner California	Standard		Pending
N1652T	Cessna 414	Fixed-wing, multi-engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N171PF	Beech A36TC	Fixed-wing, single engine	Individual owner California	Standard		Pending
N1758U	Cessna T207	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N1811D	Beech A36TC	Fixed-wing, single engine	Individual owner Texas	Standard		Pending cancellation
N199PB	Beech 58P	Fixed-wing, multi-engine	Individual owner Oregon	Standard		Pending
N210HG	Cessna P210N	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N210ME	Cessna T210L	Fixed-wing, single engine	Individual owner Georgia	Standard		Pending
N210RP	Cessna P210N	Fixed-wing, single engine	Individual owner Indiana	Standard		Pending
N211AS	Cessna T207	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N22121	Cessna T210L	Fixed-wing, single engine	Individual owner Texas	Special flight permit		Pending
N226HP	Cessna 414A	Fixed-wing, multi-engine	Individual owner Georgia	Standard		Pending
N235D	Beech 58P	Fixed-wing, multi-engine	Individual owner Colorado	Standard		Pending
N25WD	Cessna P210N	Fixed-wing, single engine	Individual owner Colorado	Standard		Sale reported
N2610G	Cessna 402C	Fixed-wing, multi-engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N2689D	Cessna 414A	Fixed-wing, multi-engine	Individual owner Mississippi	Standard		Pending
N27EH	Cessna 335	Fixed-wing, multi-engine	Individual owner Arizona	Standard		Sale reported
N27GP	Cessna TU206G	Fixed-wing, single engine	Flying Colors Airparts INC Leesburg, Florida	Standard		Valid
N28CC	Cessna 414A	Fixed-wing, multi-engine	Gulf Airbatics LTD Jennings, Louisiana	Standard		Valid
N291RB	Cessna 414A	Fixed-wing, multi-engine	Abbott Air INC Hydro, Oklahoma	Standard		Valid
N303DB	Cessna T303	Fixed-wing, multi-engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N323DC	Cessna P210N	Fixed-wing, single engine	Flymax Aircraft LLC Ball Ground, Georgia	Standard		Valid
N3349J	Cessna T188C	Fixed-wing, single engine	Individual owner Ohio	Restricted		Pending
N340DT	Cessna 340A	Fixed-wing, multi-engine	Individual owner Louisiana	Standard		Pending
N340PL	Cessna 340	Fixed-wing, multi-engine	Summit Aircraft Sales LLC Akron, Ohio	Standard		Valid
N340SD	Cessna 340A	Fixed-wing, multi-engine	Individual owner Wisconsin	Standard		Pending cancellation
N340TL	Cessna 340A	Fixed-wing, multi-engine	Individual owner Nevada	Standard		Pending
N36RW	Cessna P210N	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N3822K	Beech A36TC	Fixed-wing, single engine	Perry Park Investments INC Larkspur, Colorado	Standard		Valid
N39501	Cessna TU206G	Fixed-wing, single engine	Individual owner Arizona	Standard		Pending
N3QA	Beech B36TC	Fixed-wing, single engine	Individual owner Montana	Standard		Pending
N3VA	Cessna 414	Fixed-wing, multi-engine	Individual owner New Mexico	Standard		Valid
N414HB	Cessna 414A	Fixed-wing, multi-engine	Individual owner Montana	Standard		Pending
N416RA	Cessna 414A	Fixed-wing, multi-engine	Individual owner Michigan	Standard		Pending
N41WT	Cessna 421C	Fixed-wing, multi-engine	Premiere Aviation INC Concord, California	Standard		Valid
N420HL	Cessna 402B	Fixed-wing, multi-engine	Individual owner Florida	Standard		Expired dealer
N4319M	Piper PA-46-310P	Fixed-wing, single engine	Individual owner California	Standard		Sale reported
N4604Q	Cessna T210L	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N46CR	Piper PA-46-310P	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N4775K	Cessna P210N	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N488S	Cessna 414	Fixed-wing, multi-engine	Individual owner Washington	Standard		Sale reported
N5201A	Cessna T210N	Fixed-wing, single engine	Dan Howard Aircraft Sales LLC Tulsa, Oklahoma	Standard		Valid
N5365X	Cessna 414	Fixed-wing, multi-engine	Individual owner Colorado	Standard		Sale reported
N5404W	Cessna P210N	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N5446G	Cessna 340A	Fixed-wing, multi-engine	Central Virginia Aviation INC North Dinwiddie, Virginia	Standard		Valid
N55LT	Cessna 414	Fixed-wing, multi-engine	Individual owner Arizona	Standard		Pending
N5655C	Cessna 340A	Fixed-wing, multi-engine	Individual owner Massachusetts	Standard		Pending
N60SH	Beech 58P	Fixed-wing, multi-engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N6109R	Cessna T210F	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N6192X	Cessna T310R	Fixed-wing, multi-engine	Individual owner Minnesota	Standard		Pending
N6353U	Cessna T210R	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N6391U	Cessna TU206G	Fixed-wing, single engine	Gimli Son LLC Fort Lauderdale, Florida	Standard		Valid
N64200	Beech 58P	Fixed-wing, multi-engine	Individual owner Arkansas	Standard		Pending
N643UF	Cessna T210N	Fixed-wing, single engine	No owner on file	Standard		Assigned, not yet registered
N6444W	Cessna P210N	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N6453C	Beech B36TC	Fixed-wing, single engine	Individual owner South Dakota	Standard		Sale reported
N6453N	Cessna T210N	Fixed-wing, single engine	Ugly Johns Aircraft LLC Afton, Oklahoma	Standard		Valid
N6573E	Voshell Frank STARDUSTER II SA300	Fixed-wing, single engine	Individual owner Minnesota	Experimental		Sale reported
N66ML	Cessna T210M	Fixed-wing, single engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N68245	Cessna 340A	Fixed-wing, multi-engine	Individual owner South Carolina	Standard		Pending
N6826B	Cessna T210M	Fixed-wing, single engine	Dan Howard Aircraft Sales LLC Tulsa, Oklahoma	Standard		Valid
N6920K	Piper PA-46-310P	Fixed-wing, single engine	Individual owner North Carolina	Standard		Pending cancellation
N69485	Cessna 340	Fixed-wing, multi-engine	Plane N Simple Aviation LLC Los Angeles, California	Standard		Valid
N711BG	Cessna P210N	Fixed-wing, single engine	Saybrook Offshore LLC Guilford, Connecticut	Standard		Valid
N717DK	Cessna T210L	Fixed-wing, single engine	Individual owner Nevada	Standard		Pending
N734WX	Cessna TU206G	Fixed-wing, single engine	Individual owner Alaska	Standard		Pending
N74HJ	Cessna 340	Fixed-wing, multi-engine	Individual owner Wyoming	Standard		Pending
N7530Q	Cessna T310Q	Fixed-wing, multi-engine	Bas Part Sales LLC Greeley, Colorado	Standard		Valid
N756EY	Cessna TU206G	Fixed-wing, single engine	Heartland Aviation INC Alliance, Nebraska	Standard		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