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
N14244 Piper
PA-23-250
Fixed-wing, multi-engine Pacific Fleet Aviation LLC
Rochester, New York
Standard 2023-06-26 ValidFAA registration status code V: Valid registration. All codes
N191TA Piper
PA-31-310
Fixed-wing, multi-engine Sanborn Map Company INC
Colorado Springs, Colorado
Standard 2023-06-26 ValidFAA registration status code V: Valid registration. All codes
N23WB Piper
PA-23-250
Fixed-wing, multi-engine Qualitair LLC Trustee
Michelstadt,
Standard 2023-06-26 ValidFAA registration status code V: Valid registration. All codes
N40288 Piper
PA-23-250
Fixed-wing, multi-engine Pacific Fleet Aviation LLC
Rochester, New York
Standard 2023-06-26 ValidFAA registration status code V: Valid registration. All codes
N701DM Piper
PA-23-250
Fixed-wing, multi-engine Pacific Fleet Aviation LLC
Rochester, New York
Standard 2023-06-26 ValidFAA registration status code V: Valid registration. All codes
N123BB Mooney
M20M
Fixed-wing, single engine Singletrack Aviation LLC
Brecksville, Ohio
Standard 2023-06-24 ValidFAA registration status code V: Valid registration. All codes
N56177 Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 2023-06-24 ValidFAA registration status code V: Valid registration. All codes
N1031X Cessna
T182T
Fixed-wing, single engine Jj Byrne International INC
Steamboat Springs, Colorado
Standard 2023-06-23 ValidFAA registration status code V: Valid registration. All codes
N512DP Cessna
T182T
Fixed-wing, single engine Canal Aviation LLC
Dover, Delaware
Standard 2023-06-23 ValidFAA registration status code V: Valid registration. All codes
N74972 Piper
PA-31-350
Fixed-wing, multi-engine H&H Aircraft LLC
Grey Eagle, Minnesota
Standard 2023-06-22 ValidFAA registration status code V: Valid registration. All codes
N14747 Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N4159R Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N9297P Piper
PA-24-260
Fixed-wing, single engine 9797P LLC
San Angelo, Texas
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N248K Piper
PA-23-250
Fixed-wing, multi-engine Cracker Aviation LLC
Jupiter, Florida
Standard 2023-06-20 ValidFAA registration status code V: Valid registration. All codes
N222KH Piper
PA-23-250
Fixed-wing, multi-engine Pavco INC
Gig Harbor, Washington
Standard 2023-06-19 ValidFAA registration status code V: Valid registration. All codes
N2370X Cessna
T206H
Fixed-wing, single engine Southwest Aircraft Enterprises
Haslet, Texas
Standard 2023-06-19 ValidFAA registration status code V: Valid registration. All codes
N536DD Cessna
T182T
Fixed-wing, single engine Individual owner
Colorado
Standard 2023-06-19 ValidFAA registration status code V: Valid registration. All codes
N662R Cessna
310D
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2023-06-19 ValidFAA registration status code V: Valid registration. All codes
N2132X Mooney
M20M
Fixed-wing, single engine Championx LLC
Sugar Land, Texas
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N6485Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
U.S. Virgin Islands
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N70KC Smith
AEROSTAR 601P
Fixed-wing, multi-engine La Chabola Aviation LLC
Plano, Texas
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N727RL Piper
PA-31-325
Fixed-wing, multi-engine Co-owned owner
Mississippi
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N898CP Piper
PA-32-300
Fixed-wing, single engine Individual owner
Florida
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N9510Q Smith
AEROSTAR 601P
Fixed-wing, multi-engine Rss Aviation LLC
Myrtle Beach, South Carolina
Standard 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N126PC Piper
PA-32R-301T
Fixed-wing, single engine Roots & Wings Aviation LLC
West Simsbury, Connecticut
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N385WK Piper
PA-23-250
Fixed-wing, multi-engine Triva Solutions LLC
El Paso, Texas
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N4077R Piper
PA-32-300
Fixed-wing, single engine Mccollum Aviation INC
Friendswood, Texas
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N536SB Piper
PA 46-350P
Fixed-wing, single engine Kilo One LLC
Saint Petersburg, Florida
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N56143 Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Texas
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N65GS Piper
PA 31P 350
Fixed-wing, multi-engine Cheyenne Air LLC
Charleston, West Virginia
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N14243 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-06-11 ValidFAA registration status code V: Valid registration. All codes
N9025P Piper
PA-24-260
Fixed-wing, single engine Ideation Machine LLC
Las Vegas, Nevada
Standard 2023-06-10 ValidFAA registration status code V: Valid registration. All codes
N9147P Piper
PA-24-260
Fixed-wing, single engine Individual owner
New York
Standard 2023-06-10 ValidFAA registration status code V: Valid registration. All codes
N7016F Piper
PA-32R-300
Fixed-wing, single engine Nations One for Christ
Duluth, Minnesota
Standard 2023-06-09 ValidFAA registration status code V: Valid registration. All codes
N8672P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Michigan
Standard 2023-06-09 ValidFAA registration status code V: Valid registration. All codes
N5622Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-06-08 ValidFAA registration status code V: Valid registration. All codes
N2247A Piper
PA-32RT-300T
Fixed-wing, single engine Bcs Aviation LLC
Colquitt, Georgia
Standard 2023-06-07 ValidFAA registration status code V: Valid registration. All codes
N654Z Cessna
T182T
Fixed-wing, single engine Zarmada LLC
Issaquah, Washington
Standard 2023-06-06 ValidFAA registration status code V: Valid registration. All codes
N764JB Piper
PA-32R-300
Fixed-wing, single engine Lance Aviation INC
Lakeland, Florida
Standard 2023-06-06 ValidFAA registration status code V: Valid registration. All codes
N979SA Piper
PA-32R-300
Fixed-wing, single engine Individual owner
New Jersey
Standard 2023-06-06 ValidFAA registration status code V: Valid registration. All codes
N333PR Piper
PA-31-350
Fixed-wing, multi-engine Griffin Wings LLC
Lithia, Florida
Standard 2023-06-03 ValidFAA registration status code V: Valid registration. All codes
N9159C Mooney
M20M
Fixed-wing, single engine Individual owner
Colorado
Standard 2023-06-02 ValidFAA registration status code V: Valid registration. All codes
N4029W Piper
PA-32-300
Fixed-wing, single engine Badger 29W LLC
Waukesha, Wisconsin
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N4107R Piper
PA-32-300
Fixed-wing, single engine Satnews Publishers INC
Carson City, Nevada
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N536SA Aero Commander
500 S
Fixed-wing, multi-engine Co-owned owner
California
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N8643P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N8993P Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
Indiana
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N9776K Piper
PA-32R-300
Fixed-wing, single engine Moto Flyers LLC
Chillicothe, Ohio
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N1091L Mooney
M20M
Fixed-wing, single engine Moonair INC
Wilmington, Delaware
Standard 2023-05-30 ValidFAA registration status code V: Valid registration. All codes
N5910T Cessna
T206H
Fixed-wing, single engine Individual owner
Michigan
Standard 2023-05-30 ValidFAA registration status code V: Valid registration. All codes
N722CZ Cessna
T206H
Fixed-wing, single engine Three D Adventures LLC
Newfolden, Minnesota
Standard 2023-05-30 ValidFAA registration status code V: Valid registration. All codes
N629RM Piper
PA-31-350
Fixed-wing, multi-engine W J Halberstadt Transportation INC
Hartland, Wisconsin
Standard 2023-05-29 ValidFAA registration status code V: Valid registration. All codes
N88PZ Piper
PA-23-250
Fixed-wing, multi-engine 88Pz LLC
Clifton Park, New York
Standard 2023-05-29 ValidFAA registration status code V: Valid registration. All codes
N2196L Cessna
T182T
Fixed-wing, single engine Aerolisse LLC
Chouteau, Oklahoma
Standard 2023-05-28 ValidFAA registration status code V: Valid registration. All codes
N40279 Piper
PA-23-250
Fixed-wing, multi-engine Hhozapnv LLC
Las Vegas, Nevada
Standard 2023-05-28 ValidFAA registration status code V: Valid registration. All codes
N254HT Piper
PA 46-350P
Fixed-wing, single engine Fly254 LLC
Waco, Texas
Standard 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N3999X Piper
PA-32-300
Fixed-wing, single engine K-Viation LLC
Paulding, Ohio
Standard 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N6267K Republic
RC-3
Fixed-wing, single engine Mill Boys Flying LLC
Wilmington, Delaware
Standard 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N92EC Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Washington
Standard 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N9034P Piper
PA-24-260
Fixed-wing, single engine National Test Pilot School
Mojave, California
Standard 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N927DM Piper
PA-32-300
Fixed-wing, single engine Goat Rancho LLC
Euless, Texas
Standard 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N2805R Socata
TB21TC
Fixed-wing, single engine Co-owned owner
North Carolina
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N3541F Cessna
T182T
Fixed-wing, single engine Individual owner
West Virginia
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N8669N Piper
PA-32-300
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N95WC Cessna
T206H
Fixed-wing, single engine North Is Up LLC
Seattle, Washington
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N9162D Mooney
M20M
Fixed-wing, single engine Weagle Aviation LLC
Birmingham, Alabama
Standard 2023-05-23 ValidFAA registration status code V: Valid registration. All codes
N251DW Cessna
T182T
Fixed-wing, single engine Wallin Aviation LLC
Taylorsville, Utah
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N369S Mooney
M20M
Fixed-wing, single engine Co-owned owner
Nevada
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N8197L Piper
PA-32R-301T
Fixed-wing, single engine Gcg Aviation LLC
Fayetteville, Georgia
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N412TM Piper
PA-31-310
Fixed-wing, multi-engine Flying J Aviation LLC
Sargent, Nebraska
Restricted 2023-05-21 ValidFAA registration status code V: Valid registration. All codes
N1036X Piper
PA-32-300
Fixed-wing, single engine Individual owner
Delaware
Standard 2023-05-20 ValidFAA registration status code V: Valid registration. All codes
N519MB Mooney
M20M
Fixed-wing, single engine Individual owner
California
Standard 2023-05-19 ValidFAA registration status code V: Valid registration. All codes
N581SG Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Oregon
Standard 2023-05-19 ValidFAA registration status code V: Valid registration. All codes
N8025J Smith
AEROSTAR 600
Fixed-wing, multi-engine Individual owner
Puerto Rico
Standard 2023-05-19 ValidFAA registration status code V: Valid registration. All codes
N717SK Piper
PA 46-350P
Fixed-wing, single engine Lava Rock Properties LLC
Saint George, Utah
Standard 2023-05-18 ValidFAA registration status code V: Valid registration. All codes
N814CV Socata
TB-20 TRINIDAD
Fixed-wing, single engine Jam Zoom Yayos LLC
Manheim, Pennsylvania
Standard 2023-05-18 ValidFAA registration status code V: Valid registration. All codes
N82LL Piper
PA 46-350P
Fixed-wing, single engine Sda Aviation LLC
Winnsboro, Louisiana
Standard 2023-05-18 ValidFAA registration status code V: Valid registration. All codes
N2297M Piper
PA-32R-300
Fixed-wing, single engine Hunter Stokes & Associates LLC
Douglasville, Georgia
Standard 2023-05-16 ValidFAA registration status code V: Valid registration. All codes
N22HM Mooney
M20M
Fixed-wing, single engine Individual owner
California
Standard 2023-05-16 ValidFAA registration status code V: Valid registration. All codes
N423PS Mooney
M20M
Fixed-wing, single engine Co-owned owner
Maryland
Standard 2023-05-15 ValidFAA registration status code V: Valid registration. All codes
N4846W Rockwell International
114
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2023-05-14 ValidFAA registration status code V: Valid registration. All codes
N39BB Cessna
T182T
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-13 ValidFAA registration status code V: Valid registration. All codes
N6257Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-05-13 ValidFAA registration status code V: Valid registration. All codes
N1982K Cessna
T182T
Fixed-wing, single engine N1982K LLC
Wilmington, Delaware
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N4513Q Piper
PA-32-300
Fixed-wing, single engine Bobcat Aviation LLC
Northfield, Minnesota
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N8471D Piper
PA-32R-301T
Fixed-wing, single engine Ace Drilling LLC
Johnson, Kansas
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N9241P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Missouri
Standard 2023-05-08 ValidFAA registration status code V: Valid registration. All codes
N10YC Piper
PA-31-325
Fixed-wing, multi-engine Toyz Aviation LLC
Worthington, Kentucky
Standard 2023-05-07 ValidFAA registration status code V: Valid registration. All codes
N7008F Piper
PA-32-300
Fixed-wing, single engine Southbound Aviation LLC
Jackson, Tennessee
Standard 2023-05-07 ValidFAA registration status code V: Valid registration. All codes
N20NB Socata
TB21
Fixed-wing, single engine Co-owned owner
Texas
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N4020W Piper
PA-32-300
Fixed-wing, single engine Ross Hx LLC
Lebanon, Ohio
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N4219T Piper
PA-32-300
Fixed-wing, single engine 19T LLC
Columbia, Missouri
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N54775 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Oklahoma
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N8649P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N4851F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Texas
Standard 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N6292H Cessna
T182T
Fixed-wing, single engine Rkd Illinois Aviation LLC
Libertyville, Illinois
Standard 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N442DZ Cessna
T206H
Fixed-wing, single engine Valiair Limited Company Trustee
Casper, Wyoming
Standard 2023-05-04 ValidFAA registration status code V: Valid registration. All codes
N288WE Piper
PA-32-301T
Fixed-wing, single engine Aviators LLC
Edina, Minnesota
Standard 2023-05-03 ValidFAA registration status code V: Valid registration. All codes
N3441Q Piper
PA-32-300
Fixed-wing, single engine Bluegrass Skyriders LLC
Vine Grove, Kentucky
Standard 2023-05-02 ValidFAA registration status code V: Valid registration. All codes
N35584 Piper
PA-31-350
Fixed-wing, multi-engine Aztec Worldwide Airlines INC
Wilmington, Delaware
Standard 2023-05-02 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.