The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 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

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

Aircraft newest certificates first · 4,114

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N4377A Piper
PA-46-310P
Fixed-wing, single engine Individual owner
Texas
Standard 2024-08-24 ValidFAA registration status code V: Valid registration. All codes
N87393 Cessna
T310R
Fixed-wing, multi-engine 310 Amigos LLC
Stuart, Florida
Standard 2024-08-24 ValidFAA registration status code V: Valid registration. All codes
N3131K Cessna
402B
Fixed-wing, multi-engine Amazon Aero CORP
Wilmington, Delaware
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N6195B Cessna
T210M
Fixed-wing, single engine Individual owner
California
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N87CG Cessna
402B
Fixed-wing, multi-engine Pro Aire Cargo & Consulting CO INC
Oshkosh, Wisconsin
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N337CH Cessna
T337H
Fixed-wing, multi-engine Aviation Specialty Services LLC
Beaufort, North Carolina
Standard 2024-08-22 ValidFAA registration status code V: Valid registration. All codes
N313MP Cessna
P210N
Fixed-wing, single engine Alpha Bravo Charlie 1 CORP
Eastvale, California
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N567KC Piper
PA-46-310P
Fixed-wing, single engine Individual owner
Michigan
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N871VL Cessna
402C
Fixed-wing, multi-engine Zee Enterprise INC
Chicago, Illinois
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N340CF Cessna
340A
Fixed-wing, multi-engine Individual owner
New Jersey
Standard 2024-08-20 ValidFAA registration status code V: Valid registration. All codes
N74MF Beech
58P
Fixed-wing, multi-engine Carl Raymond Baker LLC
Brenham, Texas
Standard 2024-08-20 ValidFAA registration status code V: Valid registration. All codes
N6622Y Cessna
T210N
Fixed-wing, single engine Sierrakilo LLC Trustee
Lewes, Delaware
Standard 2024-08-19 ValidFAA registration status code V: Valid registration. All codes
N414CL Cessna
414A
Fixed-wing, multi-engine L Squared Aviation LLC
Marine, Illinois
Standard 2024-08-16 ValidFAA registration status code V: Valid registration. All codes
N535CR Cessna
414A
Fixed-wing, multi-engine Scs Assets LLC
Ponce, Puerto Rico
Standard 2024-08-16 ValidFAA registration status code V: Valid registration. All codes
N2644V Cessna
T310R
Fixed-wing, multi-engine Individual owner
Maryland
Standard 2024-08-14 ValidFAA registration status code V: Valid registration. All codes
N321JT Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Pcss Aviation LLC
New Albany, Mississippi
Standard 2024-08-14 ValidFAA registration status code V: Valid registration. All codes
N8636K Cessna
340A
Fixed-wing, multi-engine M & J General Contractors INC
Elgin, Illinois
Standard 2024-08-14 ValidFAA registration status code V: Valid registration. All codes
N761YM Cessna
T210M
Fixed-wing, single engine Skyberry Jam Aviation LLC
Coppell, Texas
Standard 2024-08-13 ValidFAA registration status code V: Valid registration. All codes
N171RS Cessna
TU206G
Fixed-wing, single engine Seneque USA INC
West Palm Beach, Florida
Standard 2024-08-10 ValidFAA registration status code V: Valid registration. All codes
N990JB Cessna
340A
Fixed-wing, multi-engine Individual owner
Illinois
Standard 2024-08-10 ValidFAA registration status code V: Valid registration. All codes
N2676R Cessna
340A
Fixed-wing, multi-engine Individual owner
Oklahoma
Standard 2024-08-05 ValidFAA registration status code V: Valid registration. All codes
N4867K Cessna
P210N
Fixed-wing, single engine Mark Thomas Productions LLC
Ketchum, Idaho
Standard 2024-08-04 ValidFAA registration status code V: Valid registration. All codes
N920NZ Cessna
P210N
Fixed-wing, single engine Altura Aviation 3-Nz LLC
Waxhaw, North Carolina
Standard 2024-08-04 ValidFAA registration status code V: Valid registration. All codes
N6728Z Beech
A36TC
Fixed-wing, single engine Mccrorie LLC
Helena, Montana
Standard 2024-08-02 ValidFAA registration status code V: Valid registration. All codes
N6126Y Cessna
T210N
Fixed-wing, single engine Cruise Flight Aviation INC
Denver, Colorado
Standard 2024-07-30 ValidFAA registration status code V: Valid registration. All codes
N6431N Cessna
T210N
Fixed-wing, single engine Individual owner
California
Standard 2024-07-30 ValidFAA registration status code V: Valid registration. All codes
N227D Cessna
210
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N293SM Beech
B36TC
Fixed-wing, single engine Kemp Aviation LLC
Hiram, Georgia
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N29RR Beech
58P
Fixed-wing, multi-engine Khg Aviation Holdings LLC
Columbus, Ohio
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N36877 Beech
A36TC
Fixed-wing, single engine Stilwell Aviation LLC
Stilwell, Kansas
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N83JT Cessna
414
Fixed-wing, multi-engine Co-owned owner
Texas
Standard 2024-07-28 ValidFAA registration status code V: Valid registration. All codes
N7736K Cessna
P210N
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N8130L Cessna
T210L
Fixed-wing, single engine Perfect 10 Roofing
Billings, Montana
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N888KP Cessna
T310R
Fixed-wing, multi-engine Runway 321 LLC
Hilton Head Island, South Carolina
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N3247P Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Cary Leasing & Management LLC
Boerne, Texas
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N38CJ Cessna
402C
Fixed-wing, multi-engine Airplane Seven LLC
Watkins, Colorado
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N9090J Piper
PA-46-310P
Fixed-wing, single engine Co-owned owner
South Carolina
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N20MC Mooney Aircraft Corp.
M20K
Fixed-wing, single engine Opie Aviation Services LLC
Nashville, North Carolina
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N6669X Beech
58TC
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N2664F Cessna
414A
Fixed-wing, multi-engine Wisconsin Aviation INC
Watertown, Wisconsin
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N6677R Cessna
T210L
Fixed-wing, single engine Tre Aviation CORP
Wilmington, Delaware
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N37343 Cessna
340A
Fixed-wing, multi-engine Bearings & Belts LLC
Carlsbad, New Mexico
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N44EC Cessna
T210N
Fixed-wing, single engine N44Ec LLC
Caddo Mills, Texas
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N210BP Cessna
T210N
Fixed-wing, single engine Bbsc LLC
Wilmington, Delaware
Standard 2024-07-17 ValidFAA registration status code V: Valid registration. All codes
N550S Cessna
340A
Fixed-wing, multi-engine Northeast Cubs LLC
Wilmington, Delaware
Standard 2024-07-17 ValidFAA registration status code V: Valid registration. All codes
N16GB Cessna
TU206F
Fixed-wing, single engine Individual owner
Idaho
Standard 2024-07-13 ValidFAA registration status code V: Valid registration. All codes
N6328Y Cessna
T210N
Fixed-wing, single engine Individual owner
Texas
Standard 2024-07-13 ValidFAA registration status code V: Valid registration. All codes
N98590 Cessna
340A
Fixed-wing, multi-engine Tuc-Mex LLC
Nogales, Arizona
Standard 2024-07-13 ValidFAA registration status code V: Valid registration. All codes
N448BB Cessna
T210N
Fixed-wing, single engine Hawkflight LLC
Sugar Land, Texas
Standard 2024-07-12 ValidFAA registration status code V: Valid registration. All codes
N540CE Cessna
P210R
Fixed-wing, single engine Everel Airborne LLC
Sandia Park, New Mexico
Standard 2024-07-12 ValidFAA registration status code V: Valid registration. All codes
N7702Q Cessna
T310Q
Fixed-wing, multi-engine Individual owner
Alabama
Standard 2024-07-11 ValidFAA registration status code V: Valid registration. All codes
N9002V Beech
V35A
Fixed-wing, single engine Individual owner
Texas
Standard 2024-07-06 ValidFAA registration status code V: Valid registration. All codes
N411VG Cessna
414A
Fixed-wing, multi-engine Montala Investments LLC
Montgomery, Alabama
Standard 2024-07-04 ValidFAA registration status code V: Valid registration. All codes
N350GM Cessna
414A
Fixed-wing, multi-engine Cannonball Trucking INC
Houston, Texas
Standard 2024-07-03 ValidFAA registration status code V: Valid registration. All codes
N3664G Beech
58P
Fixed-wing, multi-engine Marshmont Aviation LLC
Greenville, South Carolina
Standard 2024-07-03 ValidFAA registration status code V: Valid registration. All codes
N311KM Cessna
340A
Fixed-wing, multi-engine Dream Flight Florida LLC
Wellington, Florida
Standard 2024-07-02 ValidFAA registration status code V: Valid registration. All codes
N6823F Cessna
340A
Fixed-wing, multi-engine Treetop Aviation LLC
Wilson, North Carolina
Standard 2024-07-02 ValidFAA registration status code V: Valid registration. All codes
N728CT Cessna
340A
Fixed-wing, multi-engine Berns Ridge Service LLC
Whittier, California
Standard 2024-07-02 ValidFAA registration status code V: Valid registration. All codes
N3843S Beech
58TC
Fixed-wing, multi-engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N340FK Cessna
340A
Fixed-wing, multi-engine Michelesaire INC
Wilmington, Delaware
Standard 2024-06-28 ValidFAA registration status code V: Valid registration. All codes
N302MC Cessna
T310Q
Fixed-wing, multi-engine B & G Ventures LLC
Kalispell, Montana
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N9632Z Cessna
TU206G
Fixed-wing, single engine Angelone INC
Elkhart, Indiana
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N1331M Cessna
T210R
Fixed-wing, single engine
Standard 2024-06-25 ValidFAA registration status code V: Valid registration. All codes
N500EB Cessna
340A
Fixed-wing, multi-engine Kaizen Aircraft Holdings LLC
Kalispell, Montana
Standard 2024-06-25 ValidFAA registration status code V: Valid registration. All codes
N490M Beech
B36TC
Fixed-wing, single engine Legacy Ofs Construction LLC
Stillwater, Oklahoma
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N761PP Cessna
T210M
Fixed-wing, single engine Soheily Holdings LLC
Austin, Texas
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N3EL Cessna
340A
Fixed-wing, multi-engine Two If Buy LLC
Nashua, New Hampshire
Standard 2024-06-22 ValidFAA registration status code V: Valid registration. All codes
N25GP Cessna
TU206F
Fixed-wing, single engine Air Data Solutions LLC
Natchitoches, Louisiana
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N403RM Cessna
402B
Fixed-wing, multi-engine Individual owner
Puerto Rico
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N6012S Beech
58P
Fixed-wing, multi-engine Individual owner
North Carolina
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N4801P Cessna
P210N
Fixed-wing, single engine Individual owner
Arkansas
Standard 2024-06-20 ValidFAA registration status code V: Valid registration. All codes
N340CK Cessna
340
Fixed-wing, multi-engine N340Ck LLC
Kalispell, Montana
Standard 2024-06-18 ValidFAA registration status code V: Valid registration. All codes
N4091G Cessna
340A
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2024-06-18 ValidFAA registration status code V: Valid registration. All codes
N641M Cessna
T210M
Fixed-wing, single engine Alimar Management LLC
Canutillo, Texas
Standard 2024-06-18 ValidFAA registration status code V: Valid registration. All codes
N6449N Beech
B36TC
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2024-06-17 ValidFAA registration status code V: Valid registration. All codes
N789FM Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Radio Flyer LLC
Fox Point, Wisconsin
Standard 2024-06-17 ValidFAA registration status code V: Valid registration. All codes
N222BJ Cessna
414
Fixed-wing, multi-engine Flight Smith LLC
Orem, Utah
Standard 2024-06-16 ValidFAA registration status code V: Valid registration. All codes
N6276X Cessna
340A
Fixed-wing, multi-engine Wj Bolton Farms LLC
Mark Tree, Arkansas
Standard 2024-06-15 ValidFAA registration status code V: Valid registration. All codes
N427BD Beech
B36TC
Fixed-wing, single engine Nostra Aeris LLC
Gassville, Arkansas
Standard 2024-06-14 ValidFAA registration status code V: Valid registration. All codes
N531M Cessna
340A
Fixed-wing, multi-engine High Cotton Aero LLC
Murray, Kentucky
Standard 2024-06-10 ValidFAA registration status code V: Valid registration. All codes
N444BZ Cessna
414
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-06-08 ValidFAA registration status code V: Valid registration. All codes
N87221 Cessna
T310R
Fixed-wing, multi-engine Individual owner
South Dakota
Standard 2024-06-08 ValidFAA registration status code V: Valid registration. All codes
N761LB Cessna
T210M
Fixed-wing, single engine Diamond 210 LLC
Dover, Delaware
Standard 2024-06-07 ValidFAA registration status code V: Valid registration. All codes
N4875K Cessna
P210N
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N6385U Beech
B36TC
Fixed-wing, single engine Individual owner
Tennessee
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N9127Z Piper
PA-46-310P
Fixed-wing, single engine Palmy LLC
Lander, Wyoming
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N287KM Beech
58P
Fixed-wing, multi-engine Co-owned owner
Texas
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N3820L Beech
58P
Fixed-wing, multi-engine Fly A Twin LLC
Kirkland, Washington
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N418TR Cessna
340A
Fixed-wing, multi-engine Air Sunrise LLC
Mountain View, California
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N58VB Beech
58P
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N56GK Cessna
414A
Fixed-wing, multi-engine Matan Kai LLC
West Hollywood, California
Standard 2024-06-03 ValidFAA registration status code V: Valid registration. All codes
N1856E Cessna
T310R
Fixed-wing, multi-engine Gv Air INC
Medford, Oregon
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N210WJ Cessna
T210N
Fixed-wing, single engine Individual owner
Virginia
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N6980M Cessna
T210M
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-05-31 ValidFAA registration status code V: Valid registration. All codes
N188WW Beech
58P
Fixed-wing, multi-engine 3L0 Air LLC
Chuluota, Florida
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N3160L Cessna
TU206F
Fixed-wing, single engine Individual owner
New Jersey
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N5000U Cessna
414A
Fixed-wing, multi-engine Mci Air LLC
Wilmington, Delaware
Standard 2024-05-30 ValidFAA registration status code V: Valid registration. All codes
N303KJ Cessna
T303
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N776D Beech
V35A-TC
Fixed-wing, single engine Individual owner
California
Standard 2024-05-26 ValidFAA registration status code V: Valid registration. All codes
N110ME Beech
A36TC
Fixed-wing, single engine Ace States Southwest LLC
Stanton, Texas
Standard 2024-05-25 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.