The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 2026

Lycoming TIO-540 series

5,079 aircraft on the U.S. register carry a Lycoming TIO-540 series engine, rated at about 310 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (1,727 aircraft). The aircraft carrying it were built between 1962 and 2024.

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 Lycoming TIO-540 series (3 codes). FAA spellings: TI0-540 SER · TIO 540 SER · TIO 540 SER.

Fitted to model families

Piper PA-32 Cherokee Six, Lance and Saratoga1,727Piper PA-31 Navajo and Chieftain561Piper PA-24 Comanche535Piper PA-23 Apache and Aztec513Cessna T182 Turbo Skylane313Piper PA-46 Malibu, Mirage, Matrix and M-Class254Cessna T206 Turbo Stationair253Mooney M-20223Bellanca 17 Viking109Aero Commander 50095Rockwell International 11476Smith AEROSTAR 60173

Piper PA-32 Cherokee Six, Lance and Saratoga · Piper PA-31 Navajo and Chieftain · Piper PA-24 Comanche · Piper PA-23 Apache and Aztec · Cessna T182 Turbo Skylane · Piper PA-46 Malibu, Mirage, Matrix and M-Class · Cessna T206 Turbo Stationair · Mooney M-20 · Bellanca 17 Viking · Aero Commander 500

Where they are owner's state

Florida518Texas493California391Delaware238Arizona150Colorado142Georgia135Ohio129Alaska127Tennessee117

Kind of aircraft

Piston singles3,407 (67%)Piston twins1,350 (27%)Turboprops319 (6%)Helicopters3 (0.1%)

When the aircraft were built by decade

04288561,2841,7121940195019601970198019902000201042020

What the FAA has certified, ordered and been told about the Lycoming TIO-540 series the component layer

The design is held under 1 type certificate (E14EA, held by Lycoming Engines). The FAA has issued 41 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 363 failure reports with the FAA since 1995, 11 of them in the last ten years.

FAA orders 41 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2017-08-152017-16-11 · Reciprocating Engine Power Section · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-10-242012-19-01 · Crankshafts · engine

All orders naming the Lycoming TIO-540 series

Failure reports 363 since · what operators and shops told the FAA

0142842569502071218125

Parts most often reported as the reports name them

Bolt15Pump10Cylinder8Regulator8Skin8Tube8Spar7Wheel7Bearing6Brace6

Latest reports

2025-05-20Actuator: broken
2024-03-05Magneto: worn
2021-05-19None: collapsed
2019-12-26Torque Link: separated
2019-08-07Probe: false indication

Certificates and bulletins

E14EAType certificate held by Lycoming Engines · 40 models listed · revised May 24, 2012

Safety bulletins 10 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2011-03-31NE-08-26R3 · Magneto/Distributor
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

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/lycoming-tio-540-series.json · about the eFlight graph.

Aircraft newest certificates first · 5,079

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N72SD Piper
PA-32-300
Fixed-wing, single engine Yooper Aviation LLC
Menominee, Michigan
Standard 2024-09-03 ValidFAA registration status code V: Valid registration. All codes
N8773P Piper
PA-24-260
Fixed-wing, single engine Mcfly Cornhusker LLC
Sarasota, Florida
Standard 2024-09-03 ValidFAA registration status code V: Valid registration. All codes
N326BW Aerofab Inc
LAKE 250
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2024-09-01 ValidFAA registration status code V: Valid registration. All codes
N4869B Piper
PA-32-301T
Fixed-wing, single engine Co-owned owner
Illinois
Standard 2024-08-31 ValidFAA registration status code V: Valid registration. All codes
N8746P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2024-08-31 ValidFAA registration status code V: Valid registration. All codes
N5222G Cessna
T182T
Fixed-wing, single engine Hanger C16 LLC
Pinckney, Michigan
Standard 2024-08-26 ValidFAA registration status code V: Valid registration. All codes
N8973P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Tennessee
Standard 2024-08-25 ValidFAA registration status code V: Valid registration. All codes
N13NE Piper
PA 31P 350
Fixed-wing, multi-engine Qualitair LLC Trustee
Michelstadt,
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N222HM Mooney
M20M
Fixed-wing, single engine American Saddlair LLC
Park City, Utah
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N333EF Piper
PA-32R-301T
Fixed-wing, single engine Tmak INC
Visalia, California
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N417GT Piper
PA-23-250
Fixed-wing, multi-engine Ls Aerospace INC
Big Spring, Texas
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N426SE New Piper Aircraft Inc
PA-32-301XTC
Fixed-wing, single engine Athena Aviation LLC
Golden, Mississippi
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N4804T Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
North Carolina
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N8275R Bellanca
17-31A
Fixed-wing, single engine Individual owner
Texas
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N950WK Kristopher Kendall
RV-10
Fixed-wing, single engine Co-owned owner
Colorado
Experimental 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N427WS Piper
PA 46-350P
Fixed-wing, single engine Individual owner
Texas
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N709AM Socata
TB21
Fixed-wing, single engine Airtrust LLC - 13 - Series 13 Trustee
Sheridan, Wyoming
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N74199 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N7425S Smith
AEROSTAR 601
Fixed-wing, multi-engine Individual owner
Florida
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N2129A Piper
PA-32RT-300T
Fixed-wing, single engine Y Naught Aviation LLC
Madill, Oklahoma
Standard 2024-08-15 ValidFAA registration status code V: Valid registration. All codes
N1029X Piper
PA-32-300
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-08-13 ValidFAA registration status code V: Valid registration. All codes
N86CA Piper
PA-32-300
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2024-08-13 ValidFAA registration status code V: Valid registration. All codes
N106CB Bellanca
17-31ATC
Fixed-wing, single engine Regional Appraisal Services INC
Stone Mountain, Georgia
Standard 2024-08-12 ValidFAA registration status code V: Valid registration. All codes
N559JR Cessna
T182T
Fixed-wing, single engine Individual owner
California
Standard 2024-08-12 ValidFAA registration status code V: Valid registration. All codes
N626SP Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2024-08-12 ValidFAA registration status code V: Valid registration. All codes
N444VM Piper
PA-23-250
Fixed-wing, multi-engine Precise Flights LLC
Jensen Beach, Florida
Special flight permit 2024-08-10 ValidFAA registration status code V: Valid registration. All codes
N383C Piper
PA-32R-301T
Fixed-wing, single engine Sven 1 LLC
Center Moriches, New York
Standard 2024-08-09 ValidFAA registration status code V: Valid registration. All codes
N506C Piper
PA32-301XTC
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2024-08-07 ValidFAA registration status code V: Valid registration. All codes
N1986V Cessna
T182T
Fixed-wing, single engine Speer 182 LLC
Kalispell, Montana
Standard 2024-08-06 ValidFAA registration status code V: Valid registration. All codes
N4057W Piper
PA-32-300
Fixed-wing, single engine 57Whiskey LLC
Rowlett, Texas
Standard 2024-08-06 ValidFAA registration status code V: Valid registration. All codes
N285ME Piper
PA-31-350
Fixed-wing, multi-engine N285Me Holding LLC
Palm City, Florida
Standard 2024-08-05 ValidFAA registration status code V: Valid registration. All codes
N44494 Piper
PA-32-300
Fixed-wing, single engine N44494 LLC
Peachtree City, Georgia
Standard 2024-08-04 ValidFAA registration status code V: Valid registration. All codes
N7988H Piper Aircraft Corp
PA-60-700P
Fixed-wing, multi-engine Tc Loox Consultants LLC
Washington, District of Columbia
Standard 2024-08-01 ValidFAA registration status code V: Valid registration. All codes
N84337 Piper
PA-32R-301T
Fixed-wing, single engine Kent East INC
Wilmington, Delaware
Standard 2024-08-01 ValidFAA registration status code V: Valid registration. All codes
N94GW Cessna
T182T
Fixed-wing, single engine J & J 327 LLC
Clare, Michigan
Standard 2024-08-01 ValidFAA registration status code V: Valid registration. All codes
N8220Q Piper
PA-32R-301T
Fixed-wing, single engine Wallentine Ranch LLC
Dover, Delaware
Standard 2024-07-30 ValidFAA registration status code V: Valid registration. All codes
N42979 Piper
PA-32R-301T
Fixed-wing, single engine Dashanddash LLC
Athens, Georgia
Standard 2024-07-27 ValidFAA registration status code V: Valid registration. All codes
N841WB Piper
PA-32RT-300T
Fixed-wing, single engine Qualitair LLC Trustee
Michelstadt,
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N8894P Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
California
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N9229P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Georgia
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N73WH Piper
PA-23-250
Fixed-wing, multi-engine Bumble Bee Aviation LLC
Brookfield, Wisconsin
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N2096A Piper
PA-32RT-300
Fixed-wing, single engine Black River Water & Air LLC
Poplar Bluff, Missouri
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N612WW Piper
PA-23-250
Fixed-wing, multi-engine Ehecatl LLC
Fort Wayne, Indiana
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N15FG Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Oklahoma
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N5961Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Alaska
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N147PJ Piper
PA-32-300
Fixed-wing, single engine Individual owner
Puerto Rico
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N356DB Piper
PA-31-350
Fixed-wing, multi-engine Caldwell Island LLC
Sherborn, Massachusetts
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N64US Piper
PA-32-300
Fixed-wing, single engine Jc Investors Group LLC
Coral Springs, Florida
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N6916Y Piper
PA-23-250
Fixed-wing, multi-engine Dk1 Aviation LLC
Fayetteville, North Carolina
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N8493C Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N30037 Piper
PA-32RT-300T
Fixed-wing, single engine N30037 LLC
Middletown, Delaware
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N4832W Rockwell International
114
Fixed-wing, single engine Daedal Flight LLC
Lancaster, South Carolina
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N717MZ Cessna
T206H
Fixed-wing, single engine Individual owner
Washington
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N290H Mooney
M20M
Fixed-wing, single engine Lynco Air LLC
Venice, Florida
Standard 2024-07-18 ValidFAA registration status code V: Valid registration. All codes
N488AT Mooney
M20M
Fixed-wing, single engine Sizemore Proper LLC
Orange Park, Florida
Standard 2024-07-18 ValidFAA registration status code V: Valid registration. All codes
N4892S Piper
PA-32-300
Fixed-wing, single engine F&G Polk Aviation LLC
Babson Park, Florida
Standard 2024-07-17 ValidFAA registration status code V: Valid registration. All codes
N5948Y Piper
PA-23-250
Fixed-wing, multi-engine Fbm LLC
Laporte, Indiana
Standard 2024-07-17 ValidFAA registration status code V: Valid registration. All codes
N261RS Piper
PA-32-300
Fixed-wing, single engine National Aviation Partners LLC
Weatherford, Texas
Standard 2024-07-16 ValidFAA registration status code V: Valid registration. All codes
N27666 Piper
PA-31-350
Fixed-wing, multi-engine Individual owner
California
Standard 2024-07-15 ValidFAA registration status code V: Valid registration. All codes
N4843W Rockwell International
114
Fixed-wing, single engine Individual owner
Missouri
Standard 2024-07-14 ValidFAA registration status code V: Valid registration. All codes
N9063P Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
California
Standard 2024-07-13 ValidFAA registration status code V: Valid registration. All codes
N35841 Piper
PA-31-325
Fixed-wing, multi-engine Flyingvine LLC
Gilford, New Hampshire
Standard 2024-07-12 ValidFAA registration status code V: Valid registration. All codes
N82813 Piper
PA-32-301T
Fixed-wing, single engine Preside Management INC
Coachella, California
Standard 2024-07-12 ValidFAA registration status code V: Valid registration. All codes
N85503 Aerofab Inc
LAKE 250
Fixed-wing, single engine Merrells Grade-All INC
Saint Cloud, Florida
Standard 2024-07-12 ValidFAA registration status code V: Valid registration. All codes
N8097C Piper
PA-32-300
Fixed-wing, single engine Individual owner
Oklahoma
Restricted 2024-07-11 ValidFAA registration status code V: Valid registration. All codes
N9176G Piper
PA 46-350P
Fixed-wing, single engine Qs Aviation LLC
Laredo, Texas
Standard 2024-07-11 ValidFAA registration status code V: Valid registration. All codes
N154DC Piper
PA-32-300
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N1920J Rockwell International
114
Fixed-wing, single engine Individual owner
Texas
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N363US Mooney
M20M
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N444TS Aero Commander
500 S
Fixed-wing, multi-engine Uig Transport LLC
Raleigh, North Carolina
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N7268Y Cessna
T206H
Fixed-wing, single engine 612 Holdings LP
Decatur, Texas
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N11111 Smith
AEROSTAR 600
Fixed-wing, multi-engine Star Flight LLC
Bellevue, Washington
Standard 2024-07-09 ValidFAA registration status code V: Valid registration. All codes
N115MD Commander Aircraft Co
114TC
Fixed-wing, single engine Special Orthogonal Group LLC
Dover, Delaware
Standard 2024-07-09 ValidFAA registration status code V: Valid registration. All codes
N6907J Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Indiana
Standard 2024-07-06 ValidFAA registration status code V: Valid registration. All codes
N724W Mooney
M20M
Fixed-wing, single engine Individual owner
Illinois
Standard 2024-07-04 ValidFAA registration status code V: Valid registration. All codes
N149AB Cessna
T182T
Fixed-wing, single engine Individual owner
California
Standard 2024-07-01 ValidFAA registration status code V: Valid registration. All codes
N7269C Cessna
T206H
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N877DW Cessna
T182T
Fixed-wing, single engine Aviation Concepts LLC
Coeur D Alene, Idaho
Standard 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N125AH Cessna
T182T
Fixed-wing, single engine Co-owned owner
Utah
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N280KT Piper
PA 46-350P
Fixed-wing, single engine Getchell Investments LLC
Dallas, Texas
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N317PZ Piper
PA-23-250
Fixed-wing, multi-engine Fairmont State University
Fairmont, West Virginia
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N2127G Piper
PA-32RT-300T
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-06-25 ValidFAA registration status code V: Valid registration. All codes
N6865J Piper
PA-32R-300
Fixed-wing, single engine Planepals LLC
Waverly, Missouri
Standard 2024-06-25 ValidFAA registration status code V: Valid registration. All codes
N9004P Piper
PA-24-260
Fixed-wing, single engine Flying R Aviation LLC
Cherokee, Iowa
Standard 2024-06-25 ValidFAA registration status code V: Valid registration. All codes
N5134B Cessna
T182T
Fixed-wing, single engine Salinas Four LLC
Salinas, California
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N114MD Rockwell International
114
Fixed-wing, single engine Ursic Albert J
Minden, Nevada
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N2137E Mooney
M20M
Fixed-wing, single engine Mbg LLC
Mountain Home, Idaho
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N4301F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Minnesota
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N5221S Piper
PA-32-300
Fixed-wing, single engine 3A LLC
Trussville, Alabama
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N77EW Bellanca
17-31A
Fixed-wing, single engine Bellanca Aviation of Blairstown LLC
Andover, New Jersey
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N9156Y Mooney
M20M
Fixed-wing, single engine
Standard 2024-06-21 ValidFAA registration status code V: Valid registration. All codes
N83615 Piper
PA-32R-301T
Fixed-wing, single engine Co-owned owner
Alabama
Standard 2024-06-18 ValidFAA registration status code V: Valid registration. All codes
N6030Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Arkansas
Standard 2024-06-17 ValidFAA registration status code V: Valid registration. All codes
N601GZ Smith
AEROSTAR 601P
Fixed-wing, multi-engine Dependable Drain Cleaning and Plumbing Repairs LLC
Lake Charles, Louisiana
Standard 2024-06-16 ValidFAA registration status code V: Valid registration. All codes
N9135N Aero Commander
500-B
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2024-06-15 ValidFAA registration status code V: Valid registration. All codes
N146J Piper
PA-31-350
Fixed-wing, multi-engine Marc INC
Bolton, Mississippi
Standard 2024-06-14 ValidFAA registration status code V: Valid registration. All codes
N8668P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-14 ValidFAA registration status code V: Valid registration. All codes
N145B Bellanca
17-31A
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N1050B Mooney
M20M
Fixed-wing, single engine Nine1On Industries LLC
Helena, Montana
Standard 2024-06-11 ValidFAA registration status code V: Valid registration. All codes
N2168J Mooney
M20M
Fixed-wing, single engine Airgus LLC
Henderson, Nevada
Standard 2024-06-10 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.