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.

When the aircraft were built by decade

By decade built, as a table
aircraft
19402
19507
19601,030
19701,712
1980483
1990461
2000827
201010
20204

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
Failure reports by year, as a table
reports
951
974
983
0011
0156
0252
0346
0432
0537
0623
0715
0816
0912
1014
119
1211
132
145
153
173
181
194
211
241
251

Parts most often reported as the reports name them

Bolt15Pump10Cylinder8Regulator8Skin8Tube8Spar7Wheel7Bearing6Brace6
Parts most reported, as a table
reports
Bolt15
Pump10
Cylinder8
Regulator8
Skin8
Tube8
Spar7
Wheel7
Bearing6
Brace6

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
N315EN Smith
AEROSTAR 601P
Fixed-wing, multi-engine Rhino Air LLC
Wilmington, Delaware
Standard 2020-06-26 ValidFAA registration status code V: Valid registration. All codes
N521AS Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Michigan
Standard 2020-06-26 ValidFAA registration status code V: Valid registration. All codes
N8705P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Texas
Standard 2020-06-26 ValidFAA registration status code V: Valid registration. All codes
N312KK Cessna
T206H
Fixed-wing, single engine Individual owner
Texas
Standard 2020-06-25 ValidFAA registration status code V: Valid registration. All codes
N274DG Cessna
T182T
Fixed-wing, single engine Individual owner
Nevada
Standard 2020-06-22 ValidFAA registration status code V: Valid registration. All codes
N2MH Piper
PA-32RT-300T
Fixed-wing, single engine N2Mh LLC
Albuquerque, New Mexico
Standard 2020-06-22 ValidFAA registration status code V: Valid registration. All codes
N8005P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Washington
Standard 2020-06-22 ValidFAA registration status code V: Valid registration. All codes
N823WW Commander Aircraft Co
114TC
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 2020-06-22 ValidFAA registration status code V: Valid registration. All codes
N8383P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Michigan
Standard 2020-06-19 ValidFAA registration status code V: Valid registration. All codes
N569DV Cessna
T182T
Fixed-wing, single engine Delta Victor LLC
Wilmington, Delaware
Standard 2020-06-18 ValidFAA registration status code V: Valid registration. All codes
N6825Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Florida
Standard 2020-06-17 ValidFAA registration status code V: Valid registration. All codes
N24CK Piper
PA-31-325
Fixed-wing, multi-engine Air Travel Management LLC
Lemont Furnace, Pennsylvania
Standard 2020-06-15 ValidFAA registration status code V: Valid registration. All codes
N54077 Piper
PA-23-250
Fixed-wing, multi-engine Geo Mar CO Aviation LTD
Clyde, Ohio
Standard 2020-06-11 ValidFAA registration status code V: Valid registration. All codes
N8595B Piper
PA-23-250
Fixed-wing, multi-engine Greene County Vocational School District
Xenia, Ohio
Standard 2020-06-11 ValidFAA registration status code V: Valid registration. All codes
N999SX Piper
PA-31-310
Fixed-wing, multi-engine Piper Panther LLC
Lewes, Delaware
Standard 2020-06-10 ValidFAA registration status code V: Valid registration. All codes
N619CB Cessna
T206H
Fixed-wing, single engine Beers Aviation LLC
Cedar, Michigan
Standard 2020-06-09 ValidFAA registration status code V: Valid registration. All codes
N8969N Piper
PA-32-300
Fixed-wing, single engine Individual owner
Guam
Standard 2020-06-04 ValidFAA registration status code V: Valid registration. All codes
N257LG Piper
PA 46-350P
Fixed-wing, single engine Clear Sky Aviation LLC
Coral Springs, Florida
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N61490 Piper
PA-31-310
Fixed-wing, multi-engine Wings of Hope INC
Chesterfield, Missouri
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N12595 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard 2020-06-02 ValidFAA registration status code V: Valid registration. All codes
N3767Q Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Kansas
Standard 2020-06-02 ValidFAA registration status code V: Valid registration. All codes
N619WA Cessna
T182T
Fixed-wing, single engine Mckee John D
Dallas, Texas
Standard 2020-06-01 ValidFAA registration status code V: Valid registration. All codes
N4292S Piper
PA-32R-301T
Fixed-wing, single engine D&D Design Manufacturing INC
Oklahoma City, Oklahoma
Standard 2020-05-29 ValidFAA registration status code V: Valid registration. All codes
N3000K Piper
PA-32S-300
Fixed-wing, single engine Ron Aire LLC
Preston, Minnesota
Standard 2020-05-28 ValidFAA registration status code V: Valid registration. All codes
N9243P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Iowa
Standard 2020-05-28 ValidFAA registration status code V: Valid registration. All codes
N601X Smith
AEROSTAR 601
Fixed-wing, multi-engine Smc Developers INC
San Jose, California
Standard 2020-05-27 ValidFAA registration status code V: Valid registration. All codes
N4129W Piper
PA-32-300
Fixed-wing, single engine H & L Air LLC
Charlotte, Michigan
Standard 2020-05-26 ValidFAA registration status code V: Valid registration. All codes
N716SB Piper
PA-32RT-300T
Fixed-wing, single engine Direct Gulf Access LLC
Springfield, Missouri
Standard 2020-05-22 ValidFAA registration status code V: Valid registration. All codes
N378MM Piper
PA-31-325
Fixed-wing, multi-engine Individual owner
Florida
Standard 2020-05-19 ValidFAA registration status code V: Valid registration. All codes
N510AD Piper
PA-23-250
Fixed-wing, multi-engine Dj Aztec LLC
Springfield, Ohio
Standard 2020-05-19 ValidFAA registration status code V: Valid registration. All codes
N8409Y Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Maryland
Standard 2020-05-14 ValidFAA registration status code V: Valid registration. All codes
N979SF Cessna
T182T
Fixed-wing, single engine Individual owner
Montana
Standard 2020-05-14 ValidFAA registration status code V: Valid registration. All codes
N6659Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
California
Standard 2020-05-12 ValidFAA registration status code V: Valid registration. All codes
N7622F Piper
PA-32R-300
Fixed-wing, single engine Aeronation Aircraft & Exotics LLC
Lewes, Delaware
Standard 2020-05-12 ValidFAA registration status code V: Valid registration. All codes
N39527 Piper
PA-32RT-300T
Fixed-wing, single engine Amazonie INC Trustee
Wilmington, Delaware
Standard 2020-05-11 ValidFAA registration status code V: Valid registration. All codes
N35GG Piper
PA 46-350P
Fixed-wing, single engine Wilforge LLC
Phoenix, Arizona
Standard 2020-05-08 ValidFAA registration status code V: Valid registration. All codes
N75397 Piper
PA-32R-300
Fixed-wing, single engine Modern Farm LLC
Chandler, Arizona
Standard 2020-05-08 ValidFAA registration status code V: Valid registration. All codes
N492AG Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2020-05-07 ValidFAA registration status code V: Valid registration. All codes
N6224X Aero Commander
500-B
Fixed-wing, multi-engine N6224X LLC
Lake Havasu City, Arizona
Standard 2020-05-07 ValidFAA registration status code V: Valid registration. All codes
N4768W Rockwell International
114
Fixed-wing, single engine Individual owner
Delaware
Standard 2020-05-05 ValidFAA registration status code V: Valid registration. All codes
N7277N Cessna
T206H
Fixed-wing, single engine Todom Air LLC
Anchorage, Alaska
Standard 2020-05-05 ValidFAA registration status code V: Valid registration. All codes
N7533C Piper
PA-32-300
Fixed-wing, single engine Individual owner
Tennessee
Standard 2020-05-04 ValidFAA registration status code V: Valid registration. All codes
N424RM Piper
PA-32R-300
Fixed-wing, single engine East End Grill Management CO LLC
Memphis, Tennessee
Standard 2020-04-23 ValidFAA registration status code V: Valid registration. All codes
N828BD Piper
PA-31-310
Fixed-wing, multi-engine Echols Mill Aviation LLC
Elberton, Georgia
Standard 2020-04-23 ValidFAA registration status code V: Valid registration. All codes
N61FL Piper
PA 46-350P
Fixed-wing, single engine Individual owner
Virginia
Standard 2020-04-22 ValidFAA registration status code V: Valid registration. All codes
N34FM Mooney
M20M
Fixed-wing, single engine Individual owner
Texas
Standard 2020-04-16 ValidFAA registration status code V: Valid registration. All codes
N740HC Piper
PA 31P 350
Fixed-wing, multi-engine Co-owned owner
Arizona
Standard 2020-04-15 ValidFAA registration status code V: Valid registration. All codes
N40522 Piper
PA-23-250
Fixed-wing, multi-engine Khag Aviation INC
Woodbridge, New Jersey
Standard 2020-04-14 ValidFAA registration status code V: Valid registration. All codes
N428RA Piper
PA-32RT-300T
Fixed-wing, single engine N428Ra LLC
Hampshire, Illinois
Standard 2020-04-09 ValidFAA registration status code V: Valid registration. All codes
N3555K Piper
PA-31-310
Fixed-wing, multi-engine Individual owner
Alabama
Standard 2020-04-08 ValidFAA registration status code V: Valid registration. All codes
N9083P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Texas
Standard 2020-04-06 ValidFAA registration status code V: Valid registration. All codes
N13984 Piper
PA-23-250
Fixed-wing, multi-engine Smith Aircraft Holdings INC
Wilmington, Delaware
Standard 2020-03-27 ValidFAA registration status code V: Valid registration. All codes
N21892 Piper
PA-32RT-300T
Fixed-wing, single engine Dove Aviation LLC
Greensboro, Georgia
Standard 2020-03-26 ValidFAA registration status code V: Valid registration. All codes
N62677 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2020-03-26 ValidFAA registration status code V: Valid registration. All codes
N708TH Cessna
T206H
Fixed-wing, single engine H & H Contractors
Leesburg, Texas
Standard 2020-03-26 ValidFAA registration status code V: Valid registration. All codes
N7256D Cessna
T206H
Fixed-wing, single engine Air Supremacy LLC
Bend, Oregon
Standard 2020-03-26 ValidFAA registration status code V: Valid registration. All codes
N9196P Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-03-26 ValidFAA registration status code V: Valid registration. All codes
N31WH Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-03-25 ValidFAA registration status code V: Valid registration. All codes
N6751Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
California
Standard 2020-03-25 ValidFAA registration status code V: Valid registration. All codes
N9187P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Indiana
Standard 2020-03-25 ValidFAA registration status code V: Valid registration. All codes
N1AT Piper
PA-31-350
Fixed-wing, multi-engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2020-03-24 ValidFAA registration status code V: Valid registration. All codes
N8331E Piper
PA-32-301T
Fixed-wing, single engine Pats Sales of Ocala LLC
Ocala, Florida
Standard 2020-03-24 ValidFAA registration status code V: Valid registration. All codes
N148RF Piper
PA-32R-300
Fixed-wing, single engine Paklook Air INC
Bethel, Alaska
Standard 2020-03-19 ValidFAA registration status code V: Valid registration. All codes
N13AL Piper
PA-31-350
Fixed-wing, multi-engine Northstar Holdings LLC
Anchorage, Alaska
Standard 2020-03-18 ValidFAA registration status code V: Valid registration. All codes
N362DM Piper
PA-32R-301T
Fixed-wing, single engine Regions Aloft LLC
Brooksville, Florida
Standard 2020-03-16 ValidFAA registration status code V: Valid registration. All codes
N52FB Smith
AEROSTAR 601
Fixed-wing, multi-engine Co-owned owner
Minnesota
Standard 2020-03-12 ValidFAA registration status code V: Valid registration. All codes
N753WS Cessna
T206H
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2020-03-12 ValidFAA registration status code V: Valid registration. All codes
N579HF New Piper Aircraft Inc
PA-32R-301T
Fixed-wing, single engine Northstar Voyager CORP
Lewes, Delaware
Standard 2020-03-06 ValidFAA registration status code V: Valid registration. All codes
N163DB Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Missouri
Standard 2020-03-05 ValidFAA registration status code V: Valid registration. All codes
N65474 Cessna
T206H
Fixed-wing, single engine Tk Leasing Lc
Fruit Heights, Utah
Standard 2020-03-05 ValidFAA registration status code V: Valid registration. All codes
N5424D Commander Aircraft Co
114TC
Fixed-wing, single engine Individual owner
North Carolina
Standard 2020-03-03 ValidFAA registration status code V: Valid registration. All codes
N4146P Piper
PA-32R-301T
Fixed-wing, single engine N4146P Saratoga LLC
Austin, Texas
Standard 2020-03-02 ValidFAA registration status code V: Valid registration. All codes
N7639F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
California
Standard 2020-03-02 ValidFAA registration status code V: Valid registration. All codes
N406LB Cessna
T182T
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2020-02-28 ValidFAA registration status code V: Valid registration. All codes
N563JT Piper
PA-32R-301T
Fixed-wing, single engine Rick Crum Aircraft Sales INC
Prestonsburg, Kentucky
Standard 2020-02-27 ValidFAA registration status code V: Valid registration. All codes
N143AC Piper
PA-23-250
Fixed-wing, multi-engine Potcake Aviation LLC
Missoula, Montana
Standard 2020-02-26 ValidFAA registration status code V: Valid registration. All codes
N8965P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Colorado
Standard 2020-02-25 ValidFAA registration status code V: Valid registration. All codes
N896SJ Piper
PA 46-350P
Fixed-wing, single engine Tumbleweed Aviation LLC
Great Bend, Kansas
Standard 2020-02-25 ValidFAA registration status code V: Valid registration. All codes
N337CR Cessna
T182T
Fixed-wing, single engine Co-owned owner
New Mexico
Standard 2020-02-24 ValidFAA registration status code V: Valid registration. All codes
N20FR Socata
TB21
Fixed-wing, single engine Mile High Fliers LLC
Idaho Falls, Idaho
Standard 2020-02-18 ValidFAA registration status code V: Valid registration. All codes
N26PG Piper
PA 46-350P
Fixed-wing, single engine San Angeles Aviation LLC
Phoenix, Arizona
Standard 2020-02-12 ValidFAA registration status code V: Valid registration. All codes
N717U Piper
PA-31-350
Fixed-wing, multi-engine Ocean Abaco LLC
Virginia Beach, Virginia
Standard 2020-02-12 ValidFAA registration status code V: Valid registration. All codes
N1409X Piper
PA-32-300
Fixed-wing, single engine Individual owner
Alaska
Standard 2020-02-10 ValidFAA registration status code V: Valid registration. All codes
N250WA Piper
PA-32-300
Fixed-wing, single engine Individual owner
Tennessee
Standard 2020-02-06 ValidFAA registration status code V: Valid registration. All codes
N598MA Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Connecticut
Standard 2020-01-30 ValidFAA registration status code V: Valid registration. All codes
N620RM Piper
PA-31-350
Fixed-wing, multi-engine Cbs INC DBA
Bellefontaine, Ohio
Standard 2020-01-30 ValidFAA registration status code V: Valid registration. All codes
N8384C Piper
PA-32R-300
Fixed-wing, single engine Mountain Flying Adventures LLC
Missoula, Montana
Standard 2020-01-30 ValidFAA registration status code V: Valid registration. All codes
N225KT Mooney
M20M
Fixed-wing, single engine Individual owner
Florida
Standard 2020-01-29 ValidFAA registration status code V: Valid registration. All codes
N31222 Piper
PA-32R-301T
Fixed-wing, single engine Dc Air LLC
Lebanon, Missouri
Standard 2020-01-29 ValidFAA registration status code V: Valid registration. All codes
N9207P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Washington
Standard 2020-01-27 ValidFAA registration status code V: Valid registration. All codes
N661P Piper
PA-32R-301T
Fixed-wing, single engine Bravo Tango LLC
Minden, Louisiana
Standard 2020-01-23 ValidFAA registration status code V: Valid registration. All codes
N8667N Piper
PA-32-300
Fixed-wing, single engine Sky High Flyers Flying Club INC
Holbrook, New York
Standard 2020-01-22 ValidFAA registration status code V: Valid registration. All codes
N8800V Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
California
Standard 2020-01-22 ValidFAA registration status code V: Valid registration. All codes
N51HP Piper
PA-23-250
Fixed-wing, multi-engine J R'S Downwind Aviation INC
Lantana, Florida
Standard 2020-01-21 ValidFAA registration status code V: Valid registration. All codes
N8433A Piper
PA-32-301T
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2020-01-21 ValidFAA registration status code V: Valid registration. All codes
N915JT Cessna
T182T
Fixed-wing, single engine Ld Aviation LLC
Durango, Colorado
Standard 2020-01-17 ValidFAA registration status code V: Valid registration. All codes
N8807P Piper
PA-24-260
Fixed-wing, single engine Withheld at owner's request
Standard 2020-01-16 ValidFAA registration status code V: Valid registration. All codes
N250HC Piper
PA-32R-300
Fixed-wing, single engine Cornerstone Air Holdings LLC
Fort Scott, Kansas
Standard 2020-01-15 ValidFAA registration status code V: Valid registration. All codes
N15494 Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Virginia
Standard 2020-01-14 ValidFAA registration status code V: Valid registration. All codes
N222ZM Piper
PA 46-350P
Fixed-wing, single engine Presentation Impact LLC
Sandia Park, New Mexico
Standard 2020-01-13 ValidFAA registration status code V: Valid registration. All codes
Previous Page 27 of 51 Next

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.