The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Continental TSIO-520 series

4,115 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 (1,007 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

Cessna T210 Turbo Centurion1,007Cessna 340571Cessna 414 Chancellor477Cessna P210 Pressurized Centurion375Beechcraft 58 Baron312Beechcraft B36 Bonanza237Cessna TU206233Piper PA-46 Malibu, Mirage, Matrix and M-Class169Beechcraft A36 Bonanza155Cessna T-310153Cessna 402137Cessna T30344

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

Texas484California482Florida267Delaware191Arizona181Colorado172Montana134Washington111Nevada98Idaho98

Kind of aircraft

Piston singles2,315 (56%)Piston twins1,785 (43%)Turboprops15 (0.4%)

When the aircraft were built by decade

05381,0761,6132,15141940219508019602,15119701,3021980881990312000

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 Motors). 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

Parts most often reported as the reports name them

Cylinder25Master Switch21Line20Control Cable14Bolt12Relay10Pump9Actuator8Alternator8Skin8

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 Motors · 31 models listed · revised November 1, 2011

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

These connections as data: /graph/engine/continental-tsio-520-series.json · about the eFlight graph.

Aircraft newest certificates first · 4,115

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N6818X Cessna
414A
Fixed-wing, multi-engine Blue Skys Aero LLC
Vermilion, Ohio
Standard 2025-04-02 ValidFAA registration status code V: Valid registration. All codes
N500CT Cessna
340A
Fixed-wing, multi-engine Lac Aero LLC
Liberal, Kansas
Standard 2025-04-01 ValidFAA registration status code V: Valid registration. All codes
N532EB Cessna
414A
Fixed-wing, multi-engine Jeb Air LLC
Waverly, Ohio
Standard 2025-03-29 ValidFAA registration status code V: Valid registration. All codes
N222LS Cessna
TU206F
Fixed-wing, single engine Lj Bickford Companies LLC
Wasilla, Alaska
Standard 2025-03-27 ValidFAA registration status code V: Valid registration. All codes
N254TM Cessna
414A
Fixed-wing, multi-engine 56H LLC
St Simons Island, Georgia
Standard 2025-03-27 ValidFAA registration status code V: Valid registration. All codes
N124MD Beech
58P
Fixed-wing, multi-engine Kenmore Crew Leasing INC Trustee
Bellingham, Washington
Standard 2025-03-24 ValidFAA registration status code V: Valid registration. All codes
N6675Y Beech
58P
Fixed-wing, multi-engine Field Inspection LLC
Brawley, California
Standard 2025-03-24 ValidFAA registration status code V: Valid registration. All codes
N717CG Cessna
414
Fixed-wing, multi-engine Continental Title Trust LLC Trustee
Wichita, Kansas
Standard 2025-03-24 ValidFAA registration status code V: Valid registration. All codes
N711HE Cessna
P210N
Fixed-wing, single engine Desert West Enterpises LLC
Roswell, New Mexico
Standard 2025-03-22 ValidFAA registration status code V: Valid registration. All codes
N2696P Cessna
340A
Fixed-wing, multi-engine Blue Wing Aviation LLC
Tulsa, Oklahoma
Standard 2025-03-21 ValidFAA registration status code V: Valid registration. All codes
N210HP Cessna
T210M
Fixed-wing, single engine Fancy Flyers LLC
Fort Worth, Texas
Standard 2025-03-20 ValidFAA registration status code V: Valid registration. All codes
N2706A Cessna
335
Fixed-wing, multi-engine Flhs LLC
Cedar Park, Texas
Standard 2025-03-20 ValidFAA registration status code V: Valid registration. All codes
N750PC Cessna
340
Fixed-wing, multi-engine Marilyn Merlot LLC
Kalispell, Montana
Standard 2025-03-20 ValidFAA registration status code V: Valid registration. All codes
N215GN Cessna
P210N
Fixed-wing, single engine Bbt Jewelry LLC
Miami, Florida
Standard 2025-03-19 ValidFAA registration status code V: Valid registration. All codes
N357CS Piper
PA-46-310P
Fixed-wing, single engine N357C5 LLC
Clinton, Missouri
Standard 2025-03-19 ValidFAA registration status code V: Valid registration. All codes
N732YB Cessna
T210M
Fixed-wing, single engine Individual owner
South Dakota
Standard 2025-03-19 ValidFAA registration status code V: Valid registration. All codes
N2056S Cessna
T210L
Fixed-wing, single engine Individual owner
Texas
Standard 2025-03-17 ValidFAA registration status code V: Valid registration. All codes
N340GC Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Nevada
Standard 2025-03-17 ValidFAA registration status code V: Valid registration. All codes
N47BC Piper
PA-46-310P
Fixed-wing, single engine Brentech Leasing LLC
Cartersville, Georgia
Standard 2025-03-17 ValidFAA registration status code V: Valid registration. All codes
N6930C Beech
B36TC
Fixed-wing, single engine Six26 Aviation LLC
Freeport, Florida
Standard 2025-03-17 ValidFAA registration status code V: Valid registration. All codes
N4878Y Cessna
T210N
Fixed-wing, single engine 182B LLC
La Plata, New Mexico
Standard 2025-03-14 ValidFAA registration status code V: Valid registration. All codes
N58LG Beech
58P
Fixed-wing, multi-engine Morgan Farms LLC
Twin Falls, Idaho
Standard 2025-03-13 ValidFAA registration status code V: Valid registration. All codes
N7909Q Cessna
T310Q
Fixed-wing, multi-engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2025-03-13 ValidFAA registration status code V: Valid registration. All codes
N818JP Piper
PA-46-310P
Fixed-wing, single engine N818Jp LLC
Altadena, California
Standard 2025-03-12 ValidFAA registration status code V: Valid registration. All codes
N12SB Cessna
340A
Fixed-wing, multi-engine Individual owner
Kentucky
Standard 2025-03-11 ValidFAA registration status code V: Valid registration. All codes
N1717S Beech
58P
Fixed-wing, multi-engine Xp Silva Air LLC
Rockaway, New Jersey
Standard 2025-03-11 ValidFAA registration status code V: Valid registration. All codes
N6291C Cessna
T210N
Fixed-wing, single engine Satl Ranch Aviation LLC
Midland, Texas
Standard 2025-03-11 ValidFAA registration status code V: Valid registration. All codes
N731GV Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Individual owner
Delaware
Standard 2025-03-11 ValidFAA registration status code V: Valid registration. All codes
N805PR Cessna
414A
Fixed-wing, multi-engine Valiair Lc Trustee
Casper, Wyoming
Standard 2025-03-10 ValidFAA registration status code V: Valid registration. All codes
N167WA Cessna
402B
Fixed-wing, multi-engine Grid Aero INC
San Leandro, California
Standard 2025-03-09 ValidFAA registration status code V: Valid registration. All codes
N2745G Cessna
414A
Fixed-wing, multi-engine Kj3 Air LLC
Mitchell, South Dakota
Standard 2025-03-07 ValidFAA registration status code V: Valid registration. All codes
N756DW Cessna
TU206G
Fixed-wing, single engine Manos Con Alas Aviation
Stateline, Nevada
Standard 2025-03-07 ValidFAA registration status code V: Valid registration. All codes
N414G Cessna
414
Fixed-wing, multi-engine Generations Flying Club LLC
Washington, Missouri
Standard 2025-03-05 ValidFAA registration status code V: Valid registration. All codes
N4791U Cessna
TU206G
Fixed-wing, single engine Aerialtraders LLC
Fort Myers, Florida
Standard 2025-03-05 ValidFAA registration status code V: Valid registration. All codes
N21NP Beech
58TC
Fixed-wing, multi-engine Individual owner
Montana
Standard 2025-03-03 ValidFAA registration status code V: Valid registration. All codes
N2690T Cessna
414A
Fixed-wing, multi-engine N633At LLC
Punta Gorda, Florida
Standard 2025-03-03 ValidFAA registration status code V: Valid registration. All codes
N6542C Cessna
T210N
Fixed-wing, single engine Individual owner
California
Standard 2025-03-03 ValidFAA registration status code V: Valid registration. All codes
N6822U Cessna
414A
Fixed-wing, multi-engine Kw Aircraft LLC
Judson, Texas
Standard 2025-03-01 ValidFAA registration status code V: Valid registration. All codes
N921KA Cessna
340A
Fixed-wing, multi-engine Ray Aviation LLC
Carmel, Indiana
Standard 2025-03-01 ValidFAA registration status code V: Valid registration. All codes
N107FT Cessna
340A
Fixed-wing, multi-engine Royce Aviation LLC
Greenville, Mississippi
Standard 2025-02-28 ValidFAA registration status code V: Valid registration. All codes
N26KN Cessna
P210N
Fixed-wing, single engine Sky King Aviation INC
Weslaco, Texas
Standard 2025-02-28 ValidFAA registration status code V: Valid registration. All codes
N6677B Cessna
T210M
Fixed-wing, single engine Co-owned owner
Idaho
Standard 2025-02-27 ValidFAA registration status code V: Valid registration. All codes
N201D Beech
58TC
Fixed-wing, multi-engine Withheld at owner's request
Standard 2025-02-26 ValidFAA registration status code V: Valid registration. All codes
N206X Cessna
TP206C
Fixed-wing, single engine Individual owner
Colorado
Standard 2025-02-25 ValidFAA registration status code V: Valid registration. All codes
N501DC Cessna
340A
Fixed-wing, multi-engine Executive Aviation LLC
Peoria, Arizona
Standard 2025-02-25 ValidFAA registration status code V: Valid registration. All codes
N114MH Cessna
414A
Fixed-wing, multi-engine Vlavic Aviation LLC
Hallandale Beach, Florida
Standard 2025-02-24 ValidFAA registration status code V: Valid registration. All codes
N6814R Cessna
414A
Fixed-wing, multi-engine Bbc414A LLC
Alton Bay, New Hampshire
Standard 2025-02-24 ValidFAA registration status code V: Valid registration. All codes
N4949A Cessna
T310R
Fixed-wing, multi-engine SW Air LLC
Denver, Colorado
Standard 2025-02-22 ValidFAA registration status code V: Valid registration. All codes
N319CA Beech
58TC
Fixed-wing, multi-engine Individual owner
Texas
Standard 2025-02-21 ValidFAA registration status code V: Valid registration. All codes
N220DP Aero Commander
200D
Fixed-wing, single engine Individual owner
Georgia
Standard 2025-02-20 ValidFAA registration status code V: Valid registration. All codes
N340SG Cessna
340A
Fixed-wing, multi-engine N340Sg Leasing LLC
Sheridan, Wyoming
Standard 2025-02-20 ValidFAA registration status code V: Valid registration. All codes
N66568 Beech
58TC
Fixed-wing, multi-engine Trapp Aviation LTD
Lebanon, Ohio
Standard 2025-02-20 ValidFAA registration status code V: Valid registration. All codes
N4656K Cessna
P210N
Fixed-wing, single engine Valley Agriculture LLC
Galt, California
Standard 2025-02-18 ValidFAA registration status code V: Valid registration. All codes
N9556Z Cessna
TU206G
Fixed-wing, single engine Island Aircraft LLC
Anchorage, Alaska
Standard 2025-02-18 ValidFAA registration status code V: Valid registration. All codes
N340EZ Cessna
340A
Fixed-wing, multi-engine Individual owner
New York
Standard 2025-02-15 ValidFAA registration status code V: Valid registration. All codes
N58JA Cessna
340
Fixed-wing, multi-engine Sunergy Solutions LLC
Londonderry, New Hampshire
Standard 2025-02-15 ValidFAA registration status code V: Valid registration. All codes
N222PL Cessna
414A
Fixed-wing, multi-engine Anderas Per R
Green Bay, Wisconsin
Standard 2025-02-14 ValidFAA registration status code V: Valid registration. All codes
N242KA Cessna
340A
Fixed-wing, multi-engine Big River Air LLC
Jackson, Mississippi
Standard 2025-02-14 ValidFAA registration status code V: Valid registration. All codes
N2693B Cessna
414A
Fixed-wing, multi-engine Co-owned owner
Utah
Standard 2025-02-14 ValidFAA registration status code V: Valid registration. All codes
N340RF Cessna
340A
Fixed-wing, multi-engine N340Rf LLC
Denver, Colorado
Standard 2025-02-14 ValidFAA registration status code V: Valid registration. All codes
N6184C Cessna
T210N
Fixed-wing, single engine Withheld at owner's request
Standard 2025-02-11 ValidFAA registration status code V: Valid registration. All codes
N4578N Cessna
340A
Fixed-wing, multi-engine Aviation International LLC
El Paso, Texas
Standard 2025-02-06 ValidFAA registration status code V: Valid registration. All codes
N4626K Cessna
P210N
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2025-02-06 ValidFAA registration status code V: Valid registration. All codes
N925RC Beech
V35A
Fixed-wing, single engine Castle Shelter Group LLC
Clearwater, Minnesota
Standard 2025-02-05 ValidFAA registration status code V: Valid registration. All codes
N9643Z Cessna
TU206G
Fixed-wing, single engine Adams Aviation Services INC Trustee
Wilmington, Delaware
Standard 2025-02-05 ValidFAA registration status code V: Valid registration. All codes
N144JC Cessna
340A
Fixed-wing, multi-engine Jackson Construction Aviation LLC
Quitman, Texas
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N1678T Cessna
414
Fixed-wing, multi-engine Individual owner
Texas
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N210LA Cessna
P210R
Fixed-wing, single engine Individual owner
Texas
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N340TB Cessna
340A
Fixed-wing, multi-engine Berkshire Building Services INC
South Egremont, Massachusetts
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N4264C Cessna
340A
Fixed-wing, multi-engine Mmc Properties LLC
Cottonwood, Arizona
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N9529C Cessna
T303
Fixed-wing, multi-engine Silver Lining Carpet Care & Restoration LLC
Tallahassee, Florida
Standard 2025-02-04 ValidFAA registration status code V: Valid registration. All codes
N414RW Cessna
414A
Fixed-wing, multi-engine Jxc Holdings LLC
Clovis, California
Standard 2025-02-01 ValidFAA registration status code V: Valid registration. All codes
N761XZ Cessna
T210M
Fixed-wing, single engine Krabill Enterprises LLC
Christmas Valley, Oregon
Standard 2025-02-01 ValidFAA registration status code V: Valid registration. All codes
N801DC Piper
PA-46-310P
Fixed-wing, single engine Malibu Queen LLC
Portola Valley, California
Standard 2025-02-01 ValidFAA registration status code V: Valid registration. All codes
N414MA Cessna
414A
Fixed-wing, multi-engine Dlk Aviation CORP
Waukesha, Wisconsin
Standard 2025-01-29 ValidFAA registration status code V: Valid registration. All codes
N4735P Cessna
P210N
Fixed-wing, single engine Marchman & Assosiates INC
Krum, Texas
Standard 2025-01-29 ValidFAA registration status code V: Valid registration. All codes
N1346L Cessna
T337H
Fixed-wing, multi-engine Atwell Air LLC
Grundy, Virginia
Standard 2025-01-27 ValidFAA registration status code V: Valid registration. All codes
N470BC Cessna
414
Fixed-wing, multi-engine Corvus Flight LLC
Salinas, California
Standard 2025-01-26 ValidFAA registration status code V: Valid registration. All codes
N845L Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Arizona
Standard 2025-01-25 ValidFAA registration status code V: Valid registration. All codes
N51237 Cessna
TU206F
Fixed-wing, single engine Co-owned owner
Idaho
Standard 2025-01-24 ValidFAA registration status code V: Valid registration. All codes
N5244Z Cessna
TU206G
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2025-01-22 ValidFAA registration status code V: Valid registration. All codes
N913SE Cessna
P210N
Fixed-wing, single engine Hill Capital Leasing LLC
Phoenix, Arizona
Standard 2025-01-21 ValidFAA registration status code V: Valid registration. All codes
N42SG Cessna
414
Fixed-wing, multi-engine Polar Star CO
Wilmington, Delaware
Standard 2025-01-20 ValidFAA registration status code V: Valid registration. All codes
N521MM Piper
PA-46-310P
Fixed-wing, single engine Eagle Topflight LLC
Cape Girardeau, Missouri
Standard 2025-01-19 ValidFAA registration status code V: Valid registration. All codes
N414GP Cessna
414A
Fixed-wing, multi-engine Ss Aviation LLC
Sulphur, Louisiana
Standard 2025-01-18 ValidFAA registration status code V: Valid registration. All codes
N898BH Cessna
T210N
Fixed-wing, single engine Individual owner
Arizona
Standard 2025-01-16 ValidFAA registration status code V: Valid registration. All codes
N210SD Cessna
T210N
Fixed-wing, single engine Individual owner
Louisiana
Standard 2025-01-15 ValidFAA registration status code V: Valid registration. All codes
N218CF Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Virginia
Standard 2025-01-15 ValidFAA registration status code V: Valid registration. All codes
N6594C Cessna
335
Fixed-wing, multi-engine Maiden Assets LLC
Norfolk, Virginia
Standard 2025-01-15 ValidFAA registration status code V: Valid registration. All codes
N126BT Cessna
414
Fixed-wing, multi-engine Secure Storage Solutions LLC
Thomaston, Georgia
Standard 2025-01-14 ValidFAA registration status code V: Valid registration. All codes
N2296R Cessna
T210J
Fixed-wing, single engine Celias Food CORP
Miami, Florida
Standard 2025-01-14 ValidFAA registration status code V: Valid registration. All codes
N231NP Mooney Aircraft Corp.
M20K
Fixed-wing, single engine Individual owner
Washington
Standard 2025-01-14 ValidFAA registration status code V: Valid registration. All codes
N781DB Cessna
P210N
Fixed-wing, single engine Individual owner
Texas
Standard 2025-01-14 ValidFAA registration status code V: Valid registration. All codes
N444FC Beech
A36TC
Fixed-wing, single engine Centric It Resources LLC
Loomis, California
Standard 2025-01-08 ValidFAA registration status code V: Valid registration. All codes
N231PT Cessna
P210N
Fixed-wing, single engine Lobbytools Aviation LLC
Friday Harbor, Washington
Standard 2025-01-06 ValidFAA registration status code V: Valid registration. All codes
N660R Beech
V35A
Fixed-wing, single engine 660 Romeo LLC
Tulsa, Oklahoma
Standard 2025-01-06 ValidFAA registration status code V: Valid registration. All codes
N555PD Beech
A36TC
Fixed-wing, single engine SW Plains Aviation LLC
Ford, Kansas
Standard 2025-01-04 ValidFAA registration status code V: Valid registration. All codes
N299K Beech
58P
Fixed-wing, multi-engine Air Transport LLC
Troy, Montana
Standard 2025-01-03 ValidFAA registration status code V: Valid registration. All codes
N8KM Cessna
T210L
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2025-01-03 ValidFAA registration status code V: Valid registration. All codes
N812SR Cessna
414A
Fixed-wing, multi-engine Vantage Point Northwest Aviation LLC
Sheridan, Wyoming
Standard 2025-01-02 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 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.