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

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
N1847H Beech
58TC
Fixed-wing, multi-engine Quantum Fly CORP
Boca Raton, Florida
Standard 2024-05-24 ValidFAA registration status code V: Valid registration. All codes
N693TP Cessna
414
Fixed-wing, multi-engine Right Rudder LLC
Albemarle, North Carolina
Standard 2024-05-23 ValidFAA registration status code V: Valid registration. All codes
N711SD Cessna
340A
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2024-05-23 ValidFAA registration status code V: Valid registration. All codes
N98616 Cessna
340A
Fixed-wing, multi-engine Individual owner
Louisiana
Standard 2024-05-21 ValidFAA registration status code V: Valid registration. All codes
N732SM Cessna
T210M
Fixed-wing, single engine Co-owned owner
California
Standard 2024-05-18 ValidFAA registration status code V: Valid registration. All codes
N766DB Beech
A36TC
Fixed-wing, single engine Whelan and Associates Pllc
Eagle, Colorado
Standard 2024-05-18 ValidFAA registration status code V: Valid registration. All codes
N797HG Piper
PA-46-310P
Fixed-wing, single engine Co-owned owner
New York
Standard 2024-05-18 ValidFAA registration status code V: Valid registration. All codes
N414Z Cessna
414A
Fixed-wing, multi-engine Individual owner
Missouri
Standard 2024-05-17 ValidFAA registration status code V: Valid registration. All codes
N9476C Cessna
T303
Fixed-wing, multi-engine Zulu Echo Assets LLC
Port Washington, New York
Standard 2024-05-15 ValidFAA registration status code V: Valid registration. All codes
N4674N Cessna
340A
Fixed-wing, multi-engine Borderline Sky LLC
El Paso, Texas
Standard 2024-05-14 ValidFAA registration status code V: Valid registration. All codes
N761YD Cessna
T210M
Fixed-wing, single engine Aero Clean Technologies LLC
Lynchburg, Virginia
Standard 2024-05-11 ValidFAA registration status code V: Valid registration. All codes
N4723Y Cessna
T210N
Fixed-wing, single engine Regina Air Cargo CORP
Wilmington, Delaware
Standard 2024-05-09 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N340WM Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Texas
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N4402J Cessna
T188C
Fixed-wing, single engine Co-owned owner
Texas
Restricted 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N6282B Cessna
T210M
Fixed-wing, single engine Big G Air LLC
Durango, Colorado
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N731PJ Cessna
P210N
Fixed-wing, single engine Breckenridge Interests LTD
Corpus Christi, Texas
Standard 2024-05-08 ValidFAA registration status code V: Valid registration. All codes
N900GM Cessna
T310R
Fixed-wing, multi-engine Individual owner
California
Standard 2024-05-07 ValidFAA registration status code V: Valid registration. All codes
N1742E Cessna
T310R
Fixed-wing, multi-engine Cole-Tac LLC
Rapid City, South Dakota
Standard 2024-05-04 ValidFAA registration status code V: Valid registration. All codes
N691WT Cessna
340A
Fixed-wing, multi-engine Pvb36 Leasing LLC
Roanoke, Texas
Standard 2024-05-02 ValidFAA registration status code V: Valid registration. All codes
N46MR Cessna
T210L
Fixed-wing, single engine Individual owner
California
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N2259S Cessna
T210L
Fixed-wing, single engine Faireyfam Aviation LLC
Saint George, Utah
Standard 2024-04-29 ValidFAA registration status code V: Valid registration. All codes
N4701A Cessna
414A
Fixed-wing, multi-engine Wtfa LLC
Decatur, Alabama
Standard 2024-04-29 ValidFAA registration status code V: Valid registration. All codes
N139BB Cessna
T210N
Fixed-wing, single engine Individual owner
Texas
Standard 2024-04-27 ValidFAA registration status code V: Valid registration. All codes
N63PW Piper
PA-46-310P
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2024-04-27 ValidFAA registration status code V: Valid registration. All codes
N297Z Cessna
TU206G
Fixed-wing, single engine Enovi LLC
Las Vegas, Nevada
Standard 2024-04-26 ValidFAA registration status code V: Valid registration. All codes
N5083W Cessna
P210N
Fixed-wing, single engine Jtc Investments LLC
Tyrone, Georgia
Standard 2024-04-26 ValidFAA registration status code V: Valid registration. All codes
N4372B Piper
PA-46-310P
Fixed-wing, single engine Tyler Hendry Dds INC
Glendale, California
Standard 2024-04-25 ValidFAA registration status code V: Valid registration. All codes
N525SF Cessna
421C
Fixed-wing, multi-engine Primrose LLC
Columbus, Nebraska
Standard 2024-04-25 ValidFAA registration status code V: Valid registration. All codes
N731TP Cessna
P210N
Fixed-wing, single engine Hangar 28 LLC
Littleton, Colorado
Standard 2024-04-25 ValidFAA registration status code V: Valid registration. All codes
N36664 Beech
A36TC
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2024-04-24 ValidFAA registration status code V: Valid registration. All codes
N222MD Cessna
T310Q
Fixed-wing, multi-engine Elx Aviation LLC
Hartford, Michigan
Standard 2024-04-23 ValidFAA registration status code V: Valid registration. All codes
N4579N Cessna
340A
Fixed-wing, multi-engine Seven Eight Juliet LLC
Edmond, Oklahoma
Standard 2024-04-23 ValidFAA registration status code V: Valid registration. All codes
N5178J Cessna
340A
Fixed-wing, multi-engine Seven Eight Juliet LLC
Edmond, Oklahoma
Standard 2024-04-23 ValidFAA registration status code V: Valid registration. All codes
N949L Cessna
TU206G
Fixed-wing, single engine Happy Mangos LLC
Anchorage, Alaska
Standard 2024-04-23 ValidFAA registration status code V: Valid registration. All codes
N31708 Beech
B36TC
Fixed-wing, single engine Albatross Air INC
Beaver, West Virginia
Standard 2024-04-21 ValidFAA registration status code V: Valid registration. All codes
N414DN Cessna
414
Fixed-wing, multi-engine N5454X LLC
Lafayette, Louisiana
Standard 2024-04-19 ValidFAA registration status code V: Valid registration. All codes
N6634P Cessna
P210N
Fixed-wing, single engine Aviation-Avsec CORP
Wilmington, Delaware
Standard 2024-04-19 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N223KW Beech
B36TC
Fixed-wing, single engine Medic Choppers LLC
Springdale, Arkansas
Standard 2024-04-18 ValidFAA registration status code V: Valid registration. All codes
N4755K Cessna
P210N
Fixed-wing, single engine Philmar LLC
Oshkosh, Wisconsin
Standard 2024-04-18 ValidFAA registration status code V: Valid registration. All codes
N232DT Cessna
414A
Fixed-wing, multi-engine Chancellor Shares LLC
Liberal, Kansas
Standard 2024-04-17 ValidFAA registration status code V: Valid registration. All codes
N144WP Cessna
T210L
Fixed-wing, single engine Dresel Av LLC
Fayetteville, Arkansas
Standard 2024-04-16 ValidFAA registration status code V: Valid registration. All codes
N2689J Cessna
T188C
Fixed-wing, single engine Individual owner
Kansas
Restricted 2024-04-16 ValidFAA registration status code V: Valid registration. All codes
N7000K Cessna
T210M
Fixed-wing, single engine Co-owned owner
Massachusetts
Standard 2024-04-13 ValidFAA registration status code V: Valid registration. All codes
N7858P Beech
58P
Fixed-wing, multi-engine Withheld at owner's request
Standard 2024-04-13 ValidFAA registration status code V: Valid registration. All codes
N91183 Cessna
T207
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-04-12 ValidFAA registration status code V: Valid registration. All codes
N9083S Beech
58P
Fixed-wing, multi-engine Robinson Charley C
Guthrie, Oklahoma
Standard 2024-04-11 ValidFAA registration status code V: Valid registration. All codes
N125LL Beech
58P
Fixed-wing, multi-engine Individual owner
California
Standard 2024-04-10 ValidFAA registration status code V: Valid registration. All codes
N1557D Beech
B36TC
Fixed-wing, single engine B36Tc LLC
Salinas, California
Standard 2024-04-10 ValidFAA registration status code V: Valid registration. All codes
N310PZ Cessna
T310R
Fixed-wing, multi-engine Individual owner
Florida
Standard 2024-04-04 ValidFAA registration status code V: Valid registration. All codes
N6301X Cessna
340A
Fixed-wing, multi-engine Ronald A Peterson INC DBA
Orlando, Florida
Standard 2024-04-04 ValidFAA registration status code V: Valid registration. All codes
N193TT Cessna
T210M
Fixed-wing, single engine Bgiii Air LLC
Tampa, Florida
Standard 2024-04-01 ValidFAA registration status code V: Valid registration. All codes
N414JW Cessna
414
Fixed-wing, multi-engine Twincess Leia LLC
Mooresville, North Carolina
Standard 2024-04-01 ValidFAA registration status code V: Valid registration. All codes
N4592S Beech
58P
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2024-03-30 ValidFAA registration status code V: Valid registration. All codes
N761HS Cessna
T210M
Fixed-wing, single engine Individual owner
California
Standard 2024-03-29 ValidFAA registration status code V: Valid registration. All codes
N764PB Cessna
402C
Fixed-wing, multi-engine Individual owner
Puerto Rico
Standard 2024-03-27 ValidFAA registration status code V: Valid registration. All codes
N215CB Cessna
340A
Fixed-wing, multi-engine Kw Bradley Associates LLC
Manlius, New York
Standard 2024-03-26 ValidFAA registration status code V: Valid registration. All codes
N15MW Cessna
T210N
Fixed-wing, single engine Zeezee LLC
Phoenix, Arizona
Standard 2024-03-22 ValidFAA registration status code V: Valid registration. All codes
N423BW Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Individual owner
California
Standard 2024-03-21 ValidFAA registration status code V: Valid registration. All codes
N381DS Cessna
T210L
Fixed-wing, single engine Flightpath Investments LLC
Ottumwa, Iowa
Standard 2024-03-20 ValidFAA registration status code V: Valid registration. All codes
N5870M Cessna
340
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-03-20 ValidFAA registration status code V: Valid registration. All codes
N69571 Cessna
T310Q
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard 2024-03-20 ValidFAA registration status code V: Valid registration. All codes
N210JM Cessna
T210N
Fixed-wing, single engine Mustang Sally Aviation LLC
Camden, South Carolina
Standard 2024-03-18 ValidFAA registration status code V: Valid registration. All codes
N340EL Cessna
340A
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2024-03-15 ValidFAA registration status code V: Valid registration. All codes
N340WA Cessna
340
Fixed-wing, multi-engine Individual owner
California
Standard 2024-03-15 ValidFAA registration status code V: Valid registration. All codes
N5072C Cessna
T310R
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2024-03-15 ValidFAA registration status code V: Valid registration. All codes
N68NQ Cessna
TU206F
Fixed-wing, single engine Individual owner
California
Standard 2024-03-15 ValidFAA registration status code V: Valid registration. All codes
N5348U Cessna
T210N
Fixed-wing, single engine C3 Shadow LLC
Columbus, Ohio
Standard 2024-03-14 ValidFAA registration status code V: Valid registration. All codes
N827RP Cessna
P210N
Fixed-wing, single engine Jireh Aviation LLC
Zeeland, Michigan
Standard 2024-03-14 ValidFAA registration status code V: Valid registration. All codes
N855H Cessna
414A
Fixed-wing, multi-engine Individual owner
Oklahoma
Standard 2024-03-14 ValidFAA registration status code V: Valid registration. All codes
N200RT Beech
58TC
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-03-12 ValidFAA registration status code V: Valid registration. All codes
N2727L Cessna
414A
Fixed-wing, multi-engine Aircraft Trustee Services INC Trustee
Dover, Delaware
Standard 2024-03-12 ValidFAA registration status code V: Valid registration. All codes
N6728F Beech
B36TC
Fixed-wing, single engine Co-owned owner
Kansas
Standard 2024-03-12 ValidFAA registration status code V: Valid registration. All codes
N732GK Cessna
T210L
Fixed-wing, single engine 3Jc LLC
Phoenix, Arizona
Standard 2024-03-12 ValidFAA registration status code V: Valid registration. All codes
N378S Cessna
TU206G
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-03-11 ValidFAA registration status code V: Valid registration. All codes
N672HB Cessna
340A
Fixed-wing, multi-engine Valiair LTD CO Trustee
Casper, Wyoming
Standard 2024-03-07 ValidFAA registration status code V: Valid registration. All codes
N1854W Beech
A36TC
Fixed-wing, single engine Rona-B LLC
Scottsdale, Arizona
Standard 2024-03-06 ValidFAA registration status code V: Valid registration. All codes
N29BE Cessna
340
Fixed-wing, multi-engine Individual owner
Michigan
Standard 2024-03-06 ValidFAA registration status code V: Valid registration. All codes
N269KT Beech
58P
Fixed-wing, multi-engine Jfa Aviation Group LLC
Pompano Beach, Florida
Standard 2024-03-05 ValidFAA registration status code V: Valid registration. All codes
N6389U Beech
B36TC
Fixed-wing, single engine Bender & Lammers LLC
Bennington, Nebraska
Standard 2024-03-02 ValidFAA registration status code V: Valid registration. All codes
N912WT Cessna
340A
Fixed-wing, multi-engine New Tech Construction LLC
Wilmington, Delaware
Standard 2024-03-02 ValidFAA registration status code V: Valid registration. All codes
N303DC Cessna
402B
Fixed-wing, multi-engine Withheld at owner's request
Standard 2024-03-01 ValidFAA registration status code V: Valid registration. All codes
N35909 Cessna
TU206F
Fixed-wing, single engine Flight1 Hsw LLC
Norwood, Colorado
Standard 2024-03-01 ValidFAA registration status code V: Valid registration. All codes
N6443N Cessna
T210N
Fixed-wing, single engine Individual owner
California
Standard 2024-03-01 ValidFAA registration status code V: Valid registration. All codes
N888HF Cessna
P210N
Fixed-wing, single engine Flight1 Hsw LLC
Norwood, Colorado
Standard 2024-03-01 ValidFAA registration status code V: Valid registration. All codes
N210EF Cessna
P210N
Fixed-wing, single engine Despain Aviation LLC
Pendleton, Oregon
Standard 2024-02-28 ValidFAA registration status code V: Valid registration. All codes
N515FV Cessna
414
Fixed-wing, multi-engine Slowmow INC
Palestine, Texas
Standard 2024-02-28 ValidFAA registration status code V: Valid registration. All codes
N6929B Beech
B36TC
Fixed-wing, single engine Bantam Vision INC
Monte Vista, Colorado
Standard 2024-02-28 ValidFAA registration status code V: Valid registration. All codes
N731DS Cessna
P210N
Fixed-wing, single engine You and Me LLC
Sedalia, Missouri
Standard 2024-02-28 ValidFAA registration status code V: Valid registration. All codes
N1099M Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Savery Creek Holdings LLC
Dixon, Wyoming
Standard 2024-02-20 ValidFAA registration status code V: Valid registration. All codes
N777RP Cessna
414
Fixed-wing, multi-engine Paris Air Conditioning CO
Paris, Texas
Standard 2024-02-20 ValidFAA registration status code V: Valid registration. All codes
N341HC Cessna
340A
Fixed-wing, multi-engine Stc Aviation INC
Saint Cloud, Minnesota
Standard 2024-02-19 ValidFAA registration status code V: Valid registration. All codes
N8139L Cessna
T210L
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2024-02-19 ValidFAA registration status code V: Valid registration. All codes
N4116G Cessna
340A
Fixed-wing, multi-engine Acaats LLC
Queen Creek, Arizona
Standard 2024-02-14 ValidFAA registration status code V: Valid registration. All codes
N98CE Cessna
414A
Fixed-wing, multi-engine Queen Aviation LLC
Wilmington, Delaware
Standard 2024-02-14 ValidFAA registration status code V: Valid registration. All codes
N2704U Cessna
335
Fixed-wing, multi-engine Individual owner
North Dakota
Standard 2024-02-13 ValidFAA registration status code V: Valid registration. All codes
N414SD Cessna
414
Fixed-wing, multi-engine Individual owner
Massachusetts
Standard 2024-02-13 ValidFAA registration status code V: Valid registration. All codes
N788DM Cessna
340A
Fixed-wing, multi-engine Sts Aviation LLC
Daytona Beach, Florida
Standard 2024-02-13 ValidFAA registration status code V: Valid registration. All codes
N246KA Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Texas
Standard 2024-02-12 ValidFAA registration status code V: Valid registration. All codes
N103RM Cessna
T310R
Fixed-wing, multi-engine Valiair Lc Trustee
Casper, Wyoming
Standard 2024-02-09 ValidFAA registration status code V: Valid registration. All codes
N57CX Piper
PA-46-310P
Fixed-wing, single engine Dmdt Ventures LLC
Victor, New York
Standard 2024-02-08 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.