The U.S. aircraft register, updated daily
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.

When the aircraft were built by decade

By decade built, as a table
aircraft
19404
19502
196080
19702,151
19801,302
199089
200031

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

0193857769601061116226
Failure reports by year, as a table
reports
962
973
981
991
005
0165
0276
0357
0437
0543
0611
0721
0814
096
1020
118
129
137
146
154
166
192
203
241
251
262

Parts most often reported as the reports name them

Cylinder25Master Switch21Line20Control Cable14Bolt12Relay10Pump9Actuator8Alternator8Skin8
Parts most reported, as a table
reports
Cylinder25
Master Switch21
Line20
Control Cable14
Bolt12
Relay10
Pump9
Actuator8
Alternator8
Skin8

Latest reports

2026-05-07Alternator: destroyed
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
Where they are
Biggest operators
Airworthiness

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 modelGroupOwner and baseCertificateRegisteredStatus
N6238U Cessna
U206G
Fixed-wing, single engine Co-owned owner
California
Restricted 2016-11-14 ValidFAA registration status code V: Valid registration. All codes
N900SH Cessna
414A
Fixed-wing, multi-engine Shadowline Aviation LLC
Wilmington, Delaware
Standard 2016-11-14 ValidFAA registration status code V: Valid registration. All codes
N882BC Cessna
414
Fixed-wing, multi-engine Technology Aviation Services LLC
Covington, Georgia
Standard 2016-11-09 ValidFAA registration status code V: Valid registration. All codes
N642DS Cessna
P210N
Fixed-wing, single engine Jgm Aviation LLC
The Woodlands, Texas
Standard 2016-11-02 ValidFAA registration status code V: Valid registration. All codes
N22EP Cessna
T210L
Fixed-wing, single engine Individual owner
Arizona
Standard 2016-11-01 ValidFAA registration status code V: Valid registration. All codes
N3804M Beech
58P
Fixed-wing, multi-engine Glenmont Air LLC
Strasburg, Virginia
Standard 2016-10-31 ValidFAA registration status code V: Valid registration. All codes
N3LN Cessna
340
Fixed-wing, multi-engine Individual owner
Kentucky
Standard 2016-10-20 ValidFAA registration status code V: Valid registration. All codes
N4167G Cessna
402B
Fixed-wing, multi-engine W J Medical Consulting
Caguas, Puerto Rico
Standard 2016-10-20 ValidFAA registration status code V: Valid registration. All codes
N3565J Cessna
T188C
Fixed-wing, single engine Individual owner
Georgia
Restricted 2016-10-19 ValidFAA registration status code V: Valid registration. All codes
N3701N Beech
A36TC
Fixed-wing, single engine Great Lakes Aero Marine LLC
Green Bay, Wisconsin
Standard 2016-10-19 ValidFAA registration status code V: Valid registration. All codes
N8SS Cessna
340
Fixed-wing, multi-engine Weather Modification LLC
Fargo, North Dakota
Standard 2016-10-17 ValidFAA registration status code V: Valid registration. All codes
N4672K Cessna
P210N
Fixed-wing, single engine Co-owned owner
Colorado
Standard 2016-10-14 ValidFAA registration status code V: Valid registration. All codes
N2856Q Cessna
TU206F
Fixed-wing, single engine Individual owner
Montana
Standard 2016-10-13 ValidFAA registration status code V: Valid registration. All codes
N731LN Cessna
P210N
Fixed-wing, single engine Eastern Washington Ambulatory Anesthesia Svcs Pllc
Walla Walla, Washington
Standard 2016-10-11 ValidFAA registration status code V: Valid registration. All codes
N732XV Cessna
T210M
Fixed-wing, single engine Individual owner
Illinois
Standard 2016-10-11 ValidFAA registration status code V: Valid registration. All codes
N824BC Cessna
340A
Fixed-wing, multi-engine Aonvo Investment LLC
North Miami, Florida
Standard 2016-10-06 ValidFAA registration status code V: Valid registration. All codes
N8523Q Cessna
TU206F
Fixed-wing, single engine Lifetime Adventures LLC
Bellevue, Michigan
Standard 2016-10-03 ValidFAA registration status code V: Valid registration. All codes
N81RY Cessna
340A
Fixed-wing, multi-engine Co-owned owner
California
Standard 2016-09-29 ValidFAA registration status code V: Valid registration. All codes
N9499Y Cessna
T210N
Fixed-wing, single engine Milhouse Richard J
Aguila, Arizona
Standard 2016-09-27 ValidFAA registration status code V: Valid registration. All codes
N9953C Cessna
T303
Fixed-wing, multi-engine Ejj Group INC
New York, New York
Standard 2016-09-27 ValidFAA registration status code V: Valid registration. All codes
N104WD Cessna
P210N
Fixed-wing, single engine Individual owner
Oregon
Standard 2016-09-26 ValidFAA registration status code V: Valid registration. All codes
N5159A Cessna
T210N
Fixed-wing, single engine Co-owned owner
California
Standard 2016-09-21 ValidFAA registration status code V: Valid registration. All codes
N611CC Cessna
T210N
Fixed-wing, single engine Tjc Productions LLC
Ogden, Utah
Standard 2016-09-13 ValidFAA registration status code V: Valid registration. All codes
N210PC Cessna
T210M
Fixed-wing, single engine Individual owner
Florida
Standard 2016-09-12 ValidFAA registration status code V: Valid registration. All codes
N8299Z Beech
B36TC
Fixed-wing, single engine Coachair INC
Groveland, California
Standard 2016-09-07 ValidFAA registration status code V: Valid registration. All codes
N59007 Cessna
T210L
Fixed-wing, single engine Hang On LLC
Montrose, Colorado
Standard 2016-09-06 ValidFAA registration status code V: Valid registration. All codes
N340SB Cessna
340A
Fixed-wing, multi-engine Starlight Express LLC
Bellevue, Washington
Standard 2016-09-02 ValidFAA registration status code V: Valid registration. All codes
N75DM Cessna
T210L
Fixed-wing, single engine Pro-Rentals INC
Athens, Ohio
Standard 2016-08-30 ValidFAA registration status code V: Valid registration. All codes
N997R Cessna
T210L
Fixed-wing, single engine Withheld at owner's request
Standard 2016-08-30 ValidFAA registration status code V: Valid registration. All codes
N210MS Cessna
T210N
Fixed-wing, single engine Individual owner
Illinois
Standard 2016-08-24 ValidFAA registration status code V: Valid registration. All codes
N60MK Cessna
P210N
Fixed-wing, single engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2016-08-18 ValidFAA registration status code V: Valid registration. All codes
N5228V Cessna
T210L
Fixed-wing, single engine Dynamite Marketing INC
Meridian, Idaho
Standard 2016-08-11 ValidFAA registration status code V: Valid registration. All codes
N333DA Cessna
T210L
Fixed-wing, single engine Individual owner
California
Standard 2016-08-04 ValidFAA registration status code V: Valid registration. All codes
N1625U Cessna
T210N
Fixed-wing, single engine Fly2K LLC
San Jose, California
Standard 2016-08-03 ValidFAA registration status code V: Valid registration. All codes
N320RM Cessna
340A
Fixed-wing, multi-engine Rd Harrison INC
Lexington, North Carolina
Standard 2016-08-03 ValidFAA registration status code V: Valid registration. All codes
N33WV Cessna
414A
Fixed-wing, multi-engine Inarayan INC
Winter Park, Florida
Standard 2016-08-02 ValidFAA registration status code V: Valid registration. All codes
N9379Y Cessna
T210N
Fixed-wing, single engine Fitzgerald Aviation LLC
Bluffton, South Carolina
Standard 2016-08-02 ValidFAA registration status code V: Valid registration. All codes
N234SD Beech
A36TC
Fixed-wing, single engine Herndon Aviation LLC
Kokomo, Indiana
Standard 2016-08-01 ValidFAA registration status code V: Valid registration. All codes
N6305X Cessna
340A
Fixed-wing, multi-engine Murray CO
Compton, California
Standard 2016-07-28 ValidFAA registration status code V: Valid registration. All codes
N9100U Piper
PA-46-310P
Fixed-wing, single engine Individual owner
Texas
Standard 2016-07-28 ValidFAA registration status code V: Valid registration. All codes
N6455C Cessna
T210N
Fixed-wing, single engine Individual owner
Texas
Standard 2016-07-22 ValidFAA registration status code V: Valid registration. All codes
N22CC Beech
58P
Fixed-wing, multi-engine Legacy Air LLC
Oklahoma City, Oklahoma
Standard 2016-07-15 ValidFAA registration status code V: Valid registration. All codes
N24165 Beech
58TC
Fixed-wing, multi-engine Yukon Helicopters INC
Bethel, Alaska
Standard 2016-07-15 ValidFAA registration status code V: Valid registration. All codes
N340BK Cessna
340A
Fixed-wing, multi-engine Eldridge Aviation INC
Lewes, Delaware
Standard 2016-07-13 ValidFAA registration status code V: Valid registration. All codes
N5256J Cessna
340A
Fixed-wing, multi-engine Individual owner
North Carolina
Standard 2016-07-12 ValidFAA registration status code V: Valid registration. All codes
N6484L Beech
B36TC
Fixed-wing, single engine 6484L LLC
Denver, Colorado
Standard 2016-07-12 ValidFAA registration status code V: Valid registration. All codes
N833RT Cessna
P210N
Fixed-wing, single engine Nash LLC
Carbondale, Illinois
Standard 2016-07-11 ValidFAA registration status code V: Valid registration. All codes
N6038B Cessna
T210M
Fixed-wing, single engine Haarmeyer Air LLC
Lovington, New Mexico
Standard 2016-07-06 ValidFAA registration status code V: Valid registration. All codes
N68MM Beech
A36TC
Fixed-wing, single engine Letters INC
Santa Maria, California
Standard 2016-07-05 ValidFAA registration status code V: Valid registration. All codes
N25TA Cessna
340A
Fixed-wing, multi-engine Jms Properties INC
Hudsonville, Michigan
Standard 2016-06-29 ValidFAA registration status code V: Valid registration. All codes
N28AP Cessna
414A
Fixed-wing, multi-engine Aircraft Trust & Financing CORP Trustee
Wilmington, Delaware
Standard 2016-06-24 ValidFAA registration status code V: Valid registration. All codes
N411V Cessna
340
Fixed-wing, multi-engine Tvc Aviation INC
Lebanon, Ohio
Standard 2016-06-07 ValidFAA registration status code V: Valid registration. All codes
N7207L Beech
B36TC
Fixed-wing, single engine Sparkman Aviation
Odessa, Texas
Standard 2016-06-03 ValidFAA registration status code V: Valid registration. All codes
N731XX Cessna
P210N
Fixed-wing, single engine Individual owner
Texas
Standard 2016-06-02 ValidFAA registration status code V: Valid registration. All codes
N200GC Cessna
340A
Fixed-wing, multi-engine Individual owner
Massachusetts
Standard 2016-05-20 ValidFAA registration status code V: Valid registration. All codes
N732ET Cessna
P210N
Fixed-wing, single engine Caudill Jimmy L
Grove, Oklahoma
Standard 2016-05-19 ValidFAA registration status code V: Valid registration. All codes
N38GJ Cessna
414A
Fixed-wing, multi-engine Co-owned owner
California
Standard 2016-05-16 ValidFAA registration status code V: Valid registration. All codes
N945RC Cessna
P210N
Fixed-wing, single engine Red Baron Leasing LLC
Santa Barbara, California
Standard 2016-05-16 ValidFAA registration status code V: Valid registration. All codes
N4694Z Piper
PA-46-310P
Fixed-wing, single engine Kyro Consulting LLC
Williamsburg, Virginia
Standard 2016-05-13 ValidFAA registration status code V: Valid registration. All codes
N2744Y Cessna
340A
Fixed-wing, multi-engine Individual owner
Texas
Standard 2016-05-10 ValidFAA registration status code V: Valid registration. All codes
N732BK Cessna
T210L
Fixed-wing, single engine Individual owner
Texas
Standard 2016-05-10 ValidFAA registration status code V: Valid registration. All codes
N527TC Beech
B36TC
Fixed-wing, single engine Individual owner
California
Standard 2016-05-03 ValidFAA registration status code V: Valid registration. All codes
N388SP Cessna
340
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2016-04-18 ValidFAA registration status code V: Valid registration. All codes
N3032L Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Blue Sky Air Ventures LLC
Wilmington, Delaware
Standard 2016-04-14 ValidFAA registration status code V: Valid registration. All codes
N47557 Piper
PA-34-200T
Fixed-wing, multi-engine M & M Aircraft LLC
Cresson, Texas
Standard 2016-04-14 ValidFAA registration status code V: Valid registration. All codes
N761EZ Cessna
T210M
Fixed-wing, single engine State of Arizona
Prescott, Arizona
Standard 2016-04-14 ValidFAA registration status code V: Valid registration. All codes
N79PP Cessna
414A
Fixed-wing, multi-engine Jon Gibson CO
Cameron Park, California
Standard 2016-04-12 ValidFAA registration status code V: Valid registration. All codes
N6741M Beech
58TC
Fixed-wing, multi-engine Cooper Aviation LLC
Georgetown, South Carolina
Standard 2016-04-07 ValidFAA registration status code V: Valid registration. All codes
N68MG Cessna
T210N
Fixed-wing, single engine Individual owner
Washington
Standard 2016-03-30 ValidFAA registration status code V: Valid registration. All codes
N72JA Cessna
414A
Fixed-wing, multi-engine Otter Air LLC
Fishers, Indiana
Standard 2016-03-30 ValidFAA registration status code V: Valid registration. All codes
N56DC Cessna
T210G
Fixed-wing, single engine Aero Services Lc
Woods Cross, Utah
Restricted 2016-03-24 ValidFAA registration status code V: Valid registration. All codes
N999CE Beech
A36TC
Fixed-wing, single engine Cb Wings LLC
Eugene, Oregon
Standard 2016-03-19 ValidFAA registration status code V: Valid registration. All codes
N714DB Beech
B36TC
Fixed-wing, single engine Ipiranga INC
Houston, Texas
Standard 2016-03-15 ValidFAA registration status code V: Valid registration. All codes
N53391 Cessna
A188B
Fixed-wing, single engine Individual owner
Montana
Restricted 2016-03-10 ValidFAA registration status code V: Valid registration. All codes
N761WQ Cessna
T210M
Fixed-wing, single engine Tower Aircraft Associates INC
Ventura, California
Standard 2016-03-07 ValidFAA registration status code V: Valid registration. All codes
N85PG Piper
PA-46-310P
Fixed-wing, single engine N85Pg LLC
Atlanta, Georgia
Standard 2016-03-05 ValidFAA registration status code V: Valid registration. All codes
N210JK Cessna
T210M
Fixed-wing, single engine Individual owner
Louisiana
Standard 2016-02-24 ValidFAA registration status code V: Valid registration. All codes
N611WS Cessna
T210L
Fixed-wing, single engine Freedom Flight Service LLC
Glendale, Arizona
Standard 2016-02-24 ValidFAA registration status code V: Valid registration. All codes
N761DH Cessna
T210M
Fixed-wing, single engine Sk Sky LLC
Clint, Texas
Standard 2016-02-23 ValidFAA registration status code V: Valid registration. All codes
N4712K Cessna
P210N
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2016-02-19 ValidFAA registration status code V: Valid registration. All codes
N945BG Cessna
421C
Fixed-wing, multi-engine Individual owner
Texas
Standard 2016-02-19 ValidFAA registration status code V: Valid registration. All codes
N414TJ Cessna
414A
Fixed-wing, multi-engine Lobair LLC
Peoria, Illinois
Standard 2016-02-18 ValidFAA registration status code V: Valid registration. All codes
N6492B Cessna
T210M
Fixed-wing, single engine Co-owned owner
Wyoming
Standard 2016-02-12 ValidFAA registration status code V: Valid registration. All codes
N6544Y Cessna
T210N
Fixed-wing, single engine Individual owner
Montana
Standard 2016-02-12 ValidFAA registration status code V: Valid registration. All codes
N2744P Cessna
340A
Fixed-wing, multi-engine Touchdown LLC
Pls Vrds Est, California
Standard 2016-01-26 ValidFAA registration status code V: Valid registration. All codes
N6328P Cessna
P210N
Fixed-wing, single engine Individual owner
Wyoming
Standard 2016-01-25 ValidFAA registration status code V: Valid registration. All codes
N50RH Cessna
P210N
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N513D Cessna
340A
Fixed-wing, multi-engine Wright Aero INC
Saint Cloud, Minnesota
Standard 2016-01-22 ValidFAA registration status code V: Valid registration. All codes
N7361C Cessna
TU206G
Fixed-wing, single engine Focused Holdings LLC
Wellsville, Utah
Standard 2016-01-20 ValidFAA registration status code V: Valid registration. All codes
N4388M Piper
PA-46-310P
Fixed-wing, single engine Malibu 88Mike LLC
Duncanville, Texas
Standard 2016-01-14 ValidFAA registration status code V: Valid registration. All codes
N3181U Beech
B36TC
Fixed-wing, single engine Big Sky Aviation LLC
Ridgeland, Mississippi
Standard 2016-01-11 ValidFAA registration status code V: Valid registration. All codes
N321DD Beech
58P
Fixed-wing, multi-engine Individual owner
Florida
Standard 2016-01-11 ValidFAA registration status code V: Valid registration. All codes
N50CT Cessna
T210M
Fixed-wing, single engine Individual owner
New York
Standard 2016-01-11 ValidFAA registration status code V: Valid registration. All codes
N6387X Cessna
402B
Fixed-wing, multi-engine Air Exec INC
Mount Pleasant, Iowa
Standard 2016-01-07 ValidFAA registration status code V: Valid registration. All codes
N9483Y Cessna
T210N
Fixed-wing, single engine Sioux Falls Technology LLC
Sioux Falls, South Dakota
Standard 2016-01-06 ValidFAA registration status code V: Valid registration. All codes
N7MF Cessna
P210N
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2015-12-30 ValidFAA registration status code V: Valid registration. All codes
N5680C Cessna
414A
Fixed-wing, multi-engine Sea Spray Aviation LLC
New Smyrna Beach, Florida
Standard 2015-12-22 ValidFAA registration status code V: Valid registration. All codes
N639FS Cessna
P210N
Fixed-wing, single engine C&Bh LLC
Vernal, Utah
Standard 2015-12-22 ValidFAA registration status code V: Valid registration. All codes
N69522 Cessna
340
Fixed-wing, multi-engine Kpk Enterprises INC
Pasadena, California
Standard 2015-12-18 ValidFAA registration status code V: Valid registration. All codes
N414KM Cessna
414
Fixed-wing, multi-engine Calm Aviation LLC
Castroville, Texas
Standard 2015-12-12 ValidFAA registration status code V: Valid registration. 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 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.