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
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
N999EB Cessna
340A
Fixed-wing, multi-engine Engines INC
Jonesboro, Arkansas
Standard 2024-02-03 ValidFAA registration status code V: Valid registration. All codes
N242HB Cessna
421B
Fixed-wing, multi-engine 2Hb Airways LLC
Saint Louis, Missouri
Standard 2024-02-02 ValidFAA registration status code V: Valid registration. All codes
N469HP Piper
PA-46-310P
Fixed-wing, single engine Individual owner
California
Standard 2024-02-01 ValidFAA registration status code V: Valid registration. All codes
N30530 Cessna
T210L
Fixed-wing, single engine Individual owner
Florida
Standard 2024-01-31 ValidFAA registration status code V: Valid registration. All codes
N543EM Cessna
T210N
Fixed-wing, single engine Pacific Air Flight School LLC
Long Beach, California
Standard 2024-01-31 ValidFAA registration status code V: Valid registration. All codes
N55RB Cessna
340A
Fixed-wing, multi-engine Gots To Go LLC
Wilmington, Delaware
Standard 2024-01-31 ValidFAA registration status code V: Valid registration. All codes
N6611E Beech
B36TC
Fixed-wing, single engine Spirit of Faith Family Church
Cedar Rapids, Iowa
Standard 2024-01-31 ValidFAA registration status code V: Valid registration. All codes
N7594M Cessna
T210M
Fixed-wing, single engine Individual owner
Texas
Standard 2024-01-31 ValidFAA registration status code V: Valid registration. All codes
N2658Z Cessna
421C
Fixed-wing, multi-engine Virtue Genetics LLC
Cedar Rapids, Iowa
Standard 2024-01-29 ValidFAA registration status code V: Valid registration. All codes
N6161Z Cessna
414A
Fixed-wing, multi-engine Skybound Holdings LLC
Orlando, Florida
Standard 2024-01-28 ValidFAA registration status code V: Valid registration. All codes
N2705L Cessna
335
Fixed-wing, multi-engine Lt Aviation LLC
Plattsmouth, Nebraska
Standard 2024-01-27 ValidFAA registration status code V: Valid registration. All codes
N107PM Piper
PA-46-310P
Fixed-wing, single engine Individual owner
Nebraska
Standard 2024-01-26 ValidFAA registration status code V: Valid registration. All codes
N108LM Beech
58P
Fixed-wing, multi-engine Skyvista Aviation LLC
Marysville, Ohio
Standard 2024-01-26 ValidFAA registration status code V: Valid registration. All codes
N10W Beech
58P
Fixed-wing, multi-engine Pawsitive Rate LLC
Corpus Christi, Texas
Standard 2024-01-25 ValidFAA registration status code V: Valid registration. All codes
N2437U Cessna
T210N
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2024-01-25 ValidFAA registration status code V: Valid registration. All codes
N321CE Cessna
421C
Fixed-wing, multi-engine Maroon Sky LLC
Navasota, Texas
Standard 2024-01-25 ValidFAA registration status code V: Valid registration. All codes
N4830K Cessna
P210N
Fixed-wing, single engine Ramaker LLC
Choteau, Montana
Standard 2024-01-25 ValidFAA registration status code V: Valid registration. All codes
N234TC Cessna
T310R
Fixed-wing, multi-engine AG N234Tc LLC
South Salt Lake, Utah
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N310WJ Cessna
T310R
Fixed-wing, multi-engine AG N310Wj LLC
South Salt Lake, Utah
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N377JS Cessna
340A
Fixed-wing, multi-engine 270 Aviation LLC
Elizabethtown, Kentucky
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N47WT Beech
V35
Fixed-wing, single engine Individual owner
Louisiana
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N7841Q Cessna
340
Fixed-wing, multi-engine Exigo Capital LLC
Miami Beach, Florida
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N983JB Cessna
340A
Fixed-wing, multi-engine Constellation Aviation LLC
Rock Springs, Wyoming
Standard 2024-01-24 ValidFAA registration status code V: Valid registration. All codes
N125AR Beech
A36TC
Fixed-wing, single engine Juliet Kilo Air 1 LLC
Paradise Valley, Arizona
Standard 2024-01-23 ValidFAA registration status code V: Valid registration. All codes
N4380S Piper
PA-46-310P
Fixed-wing, single engine Co-owned owner
Washington
Standard 2024-01-23 ValidFAA registration status code V: Valid registration. All codes
N6826L Cessna
340A
Fixed-wing, multi-engine Thomas Faulhaber PC
La Veta, Colorado
Standard 2024-01-22 ValidFAA registration status code V: Valid registration. All codes
N734VS Cessna
P210N
Fixed-wing, single engine Vitatoe Industries INC
Chillicothe, Ohio
Standard 2024-01-22 ValidFAA registration status code V: Valid registration. All codes
N333BC Cessna
T210M
Fixed-wing, single engine Individual owner
Texas
Standard 2024-01-20 ValidFAA registration status code V: Valid registration. All codes
N47589 Piper
PA-28R-201T
Fixed-wing, single engine Co-owned owner
Iowa
Standard 2024-01-20 ValidFAA registration status code V: Valid registration. All codes
N761YG Cessna
T210M
Fixed-wing, single engine Goody Birds LLC
Prattville, Alabama
Standard 2024-01-20 ValidFAA registration status code V: Valid registration. All codes
N6044S Beech
58P
Fixed-wing, multi-engine Pinewood Properties LLC
Hayward, Wisconsin
Standard 2024-01-19 ValidFAA registration status code V: Valid registration. All codes
N414GS Cessna
414
Fixed-wing, multi-engine Delaney Lee Aviation LLC
Grand Rapids, Michigan
Standard 2024-01-18 ValidFAA registration status code V: Valid registration. All codes
N5523Y Cessna
T210N
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-01-18 ValidFAA registration status code V: Valid registration. All codes
N59258 Cessna
T210L
Fixed-wing, single engine Energy Roofing Technology SE LLC
Lake City, Florida
Standard 2024-01-18 ValidFAA registration status code V: Valid registration. All codes
N9TR Cessna
T210L
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2024-01-18 ValidFAA registration status code V: Valid registration. All codes
N328EM Piper
PA-46-310P
Fixed-wing, single engine Concierge Diamonds INC
Los Angeles, California
Standard 2024-01-15 ValidFAA registration status code V: Valid registration. All codes
N333PS Cessna
T210L
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-01-15 ValidFAA registration status code V: Valid registration. All codes
N402BF Cessna
402B
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-01-15 ValidFAA registration status code V: Valid registration. All codes
N4547S Beech
58P
Fixed-wing, multi-engine Lorentz Aviation LLC
Canadian, Texas
Standard 2024-01-14 ValidFAA registration status code V: Valid registration. All codes
N6NT Cessna
P210N
Fixed-wing, single engine Nevada Defense Group LLC
Henderson, Nevada
Standard 2024-01-13 ValidFAA registration status code V: Valid registration. All codes
N414TD Cessna
414A
Fixed-wing, multi-engine Atlas Aviation LLC
Maple Grove, Minnesota
Standard 2024-01-12 ValidFAA registration status code V: Valid registration. All codes
N6336U Cessna
T210R
Fixed-wing, single engine Bravo Whiskey LLC
Missoula, Montana
Standard 2024-01-12 ValidFAA registration status code V: Valid registration. All codes
N221TB Piper
PA-46-310P
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2024-01-11 ValidFAA registration status code V: Valid registration. All codes
N341AT Cessna
340A
Fixed-wing, multi-engine Co-owned owner
Texas
Standard 2024-01-11 ValidFAA registration status code V: Valid registration. All codes
N5062H Beech
V35-TC
Fixed-wing, single engine Coati Aviation LLC
San Diego, California
Standard 2024-01-11 ValidFAA registration status code V: Valid registration. All codes
N761WT Cessna
T210M
Fixed-wing, single engine Cv Aviation LLC
Logan, Utah
Standard 2024-01-11 ValidFAA registration status code V: Valid registration. All codes
N58DF Beech
58P
Fixed-wing, multi-engine B727 LLC
Midland, Texas
Standard 2024-01-10 ValidFAA registration status code V: Valid registration. All codes
N34WW Cessna
340
Fixed-wing, multi-engine Chute Aviation LLC
Prescott, Arizona
Standard 2024-01-08 ValidFAA registration status code V: Valid registration. All codes
N3992G Cessna
TU206C
Fixed-wing, single engine Flat Earth LLC
Kalispell, Montana
Standard 2024-01-08 ValidFAA registration status code V: Valid registration. All codes
N44WH Cessna
T210L
Fixed-wing, single engine Individual owner
Montana
Standard 2024-01-08 ValidFAA registration status code V: Valid registration. All codes
N6134E Cessna
P210N
Fixed-wing, single engine Cf Ranch & Cattle CO LLC
Burbank, Ohio
Standard 2024-01-08 ValidFAA registration status code V: Valid registration. All codes
N817GC Cessna
T310R
Fixed-wing, multi-engine Mountain View Aeromotive INC
Del Norte, Colorado
Standard 2024-01-07 ValidFAA registration status code V: Valid registration. All codes
N34NY Cessna
340
Fixed-wing, multi-engine Individual owner
California
Standard 2024-01-05 ValidFAA registration status code V: Valid registration. All codes
N3983G Cessna
340A
Fixed-wing, multi-engine Bank of Utah Trustee
Salt Lake City, Utah
Standard 2024-01-05 ValidFAA registration status code V: Valid registration. All codes
N4951Y Cessna
T210N
Fixed-wing, single engine H & B Aeronautics LLC
Miamisburg, Ohio
Standard 2024-01-03 ValidFAA registration status code V: Valid registration. All codes
N3807X Beech
A36TC
Fixed-wing, single engine Alpha Bravo Lima LLC
Covington, Tennessee
Standard 2024-01-01 ValidFAA registration status code V: Valid registration. All codes
N998JG Raytheon Aircraft Company
B36TC
Fixed-wing, single engine Dragonfly Aviation LLC
Davie, Florida
Standard 2023-12-24 ValidFAA registration status code V: Valid registration. All codes
N265PC Cessna
340A
Fixed-wing, multi-engine Silver Eagle II LLC
Carson City, Nevada
Standard 2023-12-22 ValidFAA registration status code V: Valid registration. All codes
N761FK Cessna
T210M
Fixed-wing, single engine Sunset Cattle CO LLC
Los Banos, California
Standard 2023-12-22 ValidFAA registration status code V: Valid registration. All codes
N2VR Beech
A36TC
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2023-12-21 ValidFAA registration status code V: Valid registration. All codes
N12434 Cessna
414A
Fixed-wing, multi-engine Aviation S and S LLC
Miami, Florida
Standard 2023-12-18 ValidFAA registration status code V: Valid registration. All codes
N70SL Beech
B36TC
Fixed-wing, single engine Individual owner
Texas
Standard 2023-12-18 ValidFAA registration status code V: Valid registration. All codes
N5457A Cessna
P210R
Fixed-wing, single engine Co-owned owner
California
Standard 2023-12-14 ValidFAA registration status code V: Valid registration. All codes
N113AW Beech
B36TC
Fixed-wing, single engine Montana 1 LLC
Missoula, Montana
Standard 2023-12-13 ValidFAA registration status code V: Valid registration. All codes
N9123V Piper
PA-46-310P
Fixed-wing, single engine Individual owner
California
Standard 2023-12-13 ValidFAA registration status code V: Valid registration. All codes
N717BD Cessna
414A
Fixed-wing, multi-engine Weathered Aviation INC
Rogers, Arkansas
Standard 2023-12-12 ValidFAA registration status code V: Valid registration. All codes
N814SW Cessna
340
Fixed-wing, multi-engine Individual owner
Kansas
Standard 2023-12-12 ValidFAA registration status code V: Valid registration. All codes
N717TV Cessna
T310R
Fixed-wing, multi-engine Individual owner
Colorado
Standard 2023-12-11 ValidFAA registration status code V: Valid registration. All codes
N959DC Cessna
340A
Fixed-wing, multi-engine Kpp Air LLC
Navasota, Texas
Standard 2023-12-10 ValidFAA registration status code V: Valid registration. All codes
N5358U Cessna
T210N
Fixed-wing, single engine Individual owner
California
Standard 2023-12-08 ValidFAA registration status code V: Valid registration. All codes
N2037A Beech
A36TC
Fixed-wing, single engine Crosswind Enterprises LLC
Box Elder, South Dakota
Standard 2023-12-05 ValidFAA registration status code V: Valid registration. All codes
N11AP Cessna
T210L
Fixed-wing, single engine Ap Aero LLC
Oklahoma City, Oklahoma
Standard 2023-12-04 ValidFAA registration status code V: Valid registration. All codes
N135US Piper
PA-46-310P
Fixed-wing, single engine Individual owner
Texas
Standard 2023-12-02 ValidFAA registration status code V: Valid registration. All codes
N23GL Cessna
414A
Fixed-wing, multi-engine Atlantic Assets Holding LLC
Dover, Delaware
Standard 2023-12-01 ValidFAA registration status code V: Valid registration. All codes
N6683Y Beech
58TC
Fixed-wing, multi-engine Gate Post Aviation LLC
Woodbury, Connecticut
Standard 2023-12-01 ValidFAA registration status code V: Valid registration. All codes
N222RM Cessna
414
Fixed-wing, multi-engine Kelco LLC
Helena, Montana
Standard 2023-11-29 ValidFAA registration status code V: Valid registration. All codes
N6446W Cessna
P210N
Fixed-wing, single engine Richter Aviation INC
Maxwell, California
Standard 2023-11-29 ValidFAA registration status code V: Valid registration. All codes
N787AE Cessna
T210L
Fixed-wing, single engine Coordinate Productions LLC
Waterloo, Iowa
Standard 2023-11-29 ValidFAA registration status code V: Valid registration. All codes
N6586W Cessna
P210N
Fixed-wing, single engine Mair LLC
Lenexa, Kansas
Standard 2023-11-28 ValidFAA registration status code V: Valid registration. All codes
N1756U Cessna
T210N
Fixed-wing, single engine Individual owner
Virginia
Standard 2023-11-20 ValidFAA registration status code V: Valid registration. All codes
N9635C Cessna
T303
Fixed-wing, multi-engine Airmans Aviation CO LTD
Fort Smith, Arkansas
Standard 2023-11-18 ValidFAA registration status code V: Valid registration. All codes
N4255S Beech
58TC
Fixed-wing, multi-engine Teton River Flying Service INC
Rexburg, Idaho
Standard 2023-11-16 ValidFAA registration status code V: Valid registration. All codes
N756YC Cessna
TU206G
Fixed-wing, single engine Mb Aviation LLC
Ridgefield, Washington
Standard 2023-11-15 ValidFAA registration status code V: Valid registration. All codes
N119PA Cessna
402B
Fixed-wing, multi-engine Co-owned owner
Massachusetts
Standard 2023-11-11 ValidFAA registration status code V: Valid registration. All codes
N75LG Cessna
P210N
Fixed-wing, single engine Individual owner
Oregon
Standard 2023-11-10 ValidFAA registration status code V: Valid registration. All codes
N310AM Cessna
T310R
Fixed-wing, multi-engine Cwr Enterprises INC
Henderson, North Carolina
Standard 2023-11-09 ValidFAA registration status code V: Valid registration. All codes
N1133A Beech
F33A
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2023-11-08 ValidFAA registration status code V: Valid registration. All codes
N6385P Cessna
P210N
Fixed-wing, single engine Individual owner
Texas
Standard 2023-11-08 ValidFAA registration status code V: Valid registration. All codes
N732ZG Cessna
T210M
Fixed-wing, single engine Straight and Level LLC
Solana Beach, California
Standard 2023-11-06 ValidFAA registration status code V: Valid registration. All codes
N136BE Beech
B36TC
Fixed-wing, single engine Heavy D Airways LLC
Fountain Hills, Arizona
Standard 2023-11-05 ValidFAA registration status code V: Valid registration. All codes
N6654L Beech
A36TC
Fixed-wing, single engine Romeo Air LLC
Missoula, Montana
Standard 2023-11-05 ValidFAA registration status code V: Valid registration. All codes
N4679Y Cessna
T210N
Fixed-wing, single engine Extreme Air LLC
Cottage Grove, Wisconsin
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N50SH Cessna
P210N
Fixed-wing, single engine Vitatoe Industries INC
Chillicothe, Ohio
Standard 2023-11-03 ValidFAA registration status code V: Valid registration. All codes
N136DD Beech
A36TC
Fixed-wing, single engine Mason Daniel Racing LLC
Porterville, California
Standard 2023-11-01 ValidFAA registration status code V: Valid registration. All codes
N4842K Cessna
P210N
Fixed-wing, single engine Kinetic Group LLC
Eagle, Idaho
Standard 2023-11-01 ValidFAA registration status code V: Valid registration. All codes
N21CT Cessna
P210N
Fixed-wing, single engine Co-owned owner
California
Standard 2023-10-31 ValidFAA registration status code V: Valid registration. All codes
N4228C Cessna
414
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-10-31 ValidFAA registration status code V: Valid registration. All codes
N787AQ Cessna
P210R
Fixed-wing, single engine Hiflynal LLC
Harrisburg, Oregon
Standard 2023-10-31 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.