The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 2026

Lycoming IO-540 series

4,218 aircraft on the U.S. register carry a Lycoming IO-540 series engine, rated at about 300 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (1,059 aircraft). The aircraft carrying it were built between 1965 and 2026.

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 IO-540 series (2 codes). FAA spellings: IO-540 SER · IO 540 SER.

When the aircraft were built by decade

By decade built, as a table
aircraft
19402
195013
196096
1970797
1980579
1990748
20001,339
201078
202056

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

The design is held under 1 type certificate (1E4, held by Lycoming Engines). The FAA has issued 49 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 316 failure reports with the FAA since 1995, 17 of them in the last ten years.

FAA orders 49 airworthiness directives · newest first

2026-09-142026-17-10 · Reciprocating Engine Cylinder Section · engine
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

All orders naming the Lycoming IO-540 series

Failure reports 316 since · what operators and shops told the FAA

012253850950005101523226
Failure reports by year, as a table
reports
953
963
973
984
994
0011
0137
0215
0337
0434
0550
0630
0719
0812
093
1012
112
127
135
146
152
171
194
202
222
231
245
262

Parts most often reported as the reports name them

Magneto19Cylinder10Bearing8Gasket8Bolt7Boot7Actuator6Line6Pump6Baffle5
Parts most reported, as a table
reports
Magneto19
Cylinder10
Bearing8
Gasket8
Bolt7
Boot7
Actuator6
Line6
Pump6
Baffle5

Latest reports

2026-05-09Thrust Button: faulted
2026-01-29Magneto: failed
2024-08-07Magneto: failed
2024-08-06Magneto: failed
2024-03-14Magneto: failed

Certificates and bulletins

1E4Type certificate held by Lycoming Engines · 81 models listed · revised February 28, 2018

Safety bulletins 14 · 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
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2011-03-31NE-08-26R3 · Magneto/Distributor

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/lycoming-io-540-series.json.

Aircraft newest certificates first · 4,218

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N419LJ Piper
PA-32-300
Fixed-wing, single engine Individual owner
Tennessee
Standard 2023-11-13 ValidFAA registration status code V: Valid registration. All codes
N112SM Ms Aviation Llc
RV-10
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2023-11-11 ValidFAA registration status code V: Valid registration. All codes
N260JC Maule
MT-7-260
Fixed-wing, single engine Individual owner
Tennessee
Standard 2023-11-11 ValidFAA registration status code V: Valid registration. All codes
N423AT Rockwell International
114
Fixed-wing, single engine Willcutt Air Tax LLC
Vicksburg, Michigan
Standard 2023-11-11 ValidFAA registration status code V: Valid registration. All codes
N8309A Piper
PA-32-301
Fixed-wing, single engine Schmidtys Air LLC
Stuart, Florida
Standard 2023-11-11 ValidFAA registration status code V: Valid registration. All codes
N223ME Cessna
182S
Fixed-wing, single engine Chem-Air LLC
Shreveport, Louisiana
Standard 2023-11-10 ValidFAA registration status code V: Valid registration. All codes
N47AC Aero Commander
500 S
Fixed-wing, multi-engine Reabe Aircraft Improvement INC
De Pere, Wisconsin
Standard 2023-11-09 ValidFAA registration status code V: Valid registration. All codes
N55000 Maule
M-7-260C
Fixed-wing, single engine Gross Flying Service INC
Larned, Kansas
Standard 2023-11-08 ValidFAA registration status code V: Valid registration. All codes
N8099V Piper
PA-32-300
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2023-11-07 ValidFAA registration status code V: Valid registration. All codes
N474DN Cessna
182S
Fixed-wing, single engine Bravo AG Air LLC
Belmond, Iowa
Standard 2023-11-06 ValidFAA registration status code V: Valid registration. All codes
N28708 Piper
PA-32-300
Fixed-wing, single engine Individual owner
North Carolina
Standard 2023-11-05 ValidFAA registration status code V: Valid registration. All codes
N2451H Cessna
182T
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N46ER Piper
PA-23-250
Fixed-wing, multi-engine Aviation Trust Company LLC Trustee
Oklahoma City, Oklahoma
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N5164F Cessna
182T
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N5184P Cessna
182T
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N52694 Cessna
182T
Fixed-wing, single engine Individual owner
California
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N81853 Piper
PA-32-301
Fixed-wing, single engine Individual owner
California
Standard 2023-11-04 ValidFAA registration status code V: Valid registration. All codes
N51198 Cessna
182T
Fixed-wing, single engine Withheld at owner's request
Standard 2023-11-01 ValidFAA registration status code V: Valid registration. All codes
N297MA Piper
PA-32R-301
Fixed-wing, single engine Flaps 30 Gear Down LLC
Laguna Niguel, California
Standard 2023-10-31 ValidFAA registration status code V: Valid registration. All codes
N169X Manske David
FIRE BOLT
Fixed-wing, single engine Talos Aeronautics LLC
Marion, Texas
Experimental 2023-10-30 ValidFAA registration status code V: Valid registration. All codes
N21608 Cessna
182T
Fixed-wing, single engine Mmt87 LLC
North Miami, Florida
Standard 2023-10-29 ValidFAA registration status code V: Valid registration. All codes
N235HP Cessna
182S
Fixed-wing, single engine 235Hp LLC
Norwood, North Carolina
Standard 2023-10-29 ValidFAA registration status code V: Valid registration. All codes
N15BR Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Texas
Standard 2023-10-28 ValidFAA registration status code V: Valid registration. All codes
N47711 Piper
PA-32R-300
Fixed-wing, single engine N47711 LLC
Sheridan, Wyoming
Standard 2023-10-28 ValidFAA registration status code V: Valid registration. All codes
N31PL Cessna
182S
Fixed-wing, single engine Individual owner
Montana
Standard 2023-10-25 ValidFAA registration status code V: Valid registration. All codes
N829FA Cessna
182T
Fixed-wing, single engine Career Flight Training and Aircraft Rental Holding
Naples, Florida
Standard 2023-10-25 ValidFAA registration status code V: Valid registration. All codes
N47463 Piper
PA-32-300
Fixed-wing, single engine Ales Victoria LLC
Elburn, Illinois
Standard 2023-10-24 ValidFAA registration status code V: Valid registration. All codes
N4301M Piper
PA-32-301
Fixed-wing, single engine Hayes Feeding Company LLC
Osceola, Nebraska
Standard 2023-10-22 ValidFAA registration status code V: Valid registration. All codes
N87HY Maule
M-7-235C
Fixed-wing, single engine Co-owned owner
New Mexico
Standard 2023-10-20 ValidFAA registration status code V: Valid registration. All codes
N311SE Piper
PA32-301FT
Fixed-wing, single engine Diamond B Farms Trucking INC
Gamaliel, Kentucky
Standard 2023-10-19 ValidFAA registration status code V: Valid registration. All codes
N425PK Cessna
182T
Fixed-wing, single engine Good Flight LLC
San Luis Obispo, California
Standard 2023-10-18 ValidFAA registration status code V: Valid registration. All codes
N694SM Cessna
206H
Fixed-wing, single engine Surveying and Mapping LLC
Austin, Texas
Standard 2023-10-15 ValidFAA registration status code V: Valid registration. All codes
N754ME Cessna
182S
Fixed-wing, single engine Individual owner
Oregon
Standard 2023-10-14 ValidFAA registration status code V: Valid registration. All codes
N6JJ Mohr
SKYBOLT
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-10-13 ValidFAA registration status code V: Valid registration. All codes
N38476 Piper
PA-32R-300
Fixed-wing, single engine Bcdc Farms INC
Sudan, Texas
Standard 2023-10-12 ValidFAA registration status code V: Valid registration. All codes
N38818 Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2023-10-12 ValidFAA registration status code V: Valid registration. All codes
N300CP Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Virginia
Standard 2023-10-11 ValidFAA registration status code V: Valid registration. All codes
N3337R Webb James A
RV-4/ROCKET
Fixed-wing, single engine Individual owner
California
Experimental 2023-10-11 ValidFAA registration status code V: Valid registration. All codes
N65995 Cessna
182T
Fixed-wing, single engine Phoenix Flyers INC
Mesa, Arizona
Standard 2023-10-11 ValidFAA registration status code V: Valid registration. All codes
N7ZF Maule
M-7-260
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2023-10-11 ValidFAA registration status code V: Valid registration. All codes
N44XX Piper
AEROSTAR 601P
Fixed-wing, multi-engine Flyboy71 LLC
Kalamazoo, Michigan
Standard 2023-10-10 ValidFAA registration status code V: Valid registration. All codes
N8272A Piper
PA-28-236
Fixed-wing, single engine Individual owner
North Carolina
Standard 2023-10-10 ValidFAA registration status code V: Valid registration. All codes
N20DY Socata
TB-20 TRINIDAD
Fixed-wing, single engine Bpw Aviation LLC
Huntsville, Alabama
Standard 2023-10-09 ValidFAA registration status code V: Valid registration. All codes
N2698X Cessna
182S
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2023-10-09 ValidFAA registration status code V: Valid registration. All codes
N345RD Dawson Ricky L
RV-10
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-10-08 ValidFAA registration status code V: Valid registration. All codes
N1070B Piper
PA-24-250
Fixed-wing, single engine Curtis Julia A
Holladay, Utah
Standard 2023-10-07 ValidFAA registration status code V: Valid registration. All codes
N987SL Meyer Geoffrey A
GOAT
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-10-07 ValidFAA registration status code V: Valid registration. All codes
N64CM Corbin Moberg
VANS RV-10
Fixed-wing, single engine Individual owner
Washington
Experimental 2023-10-05 ValidFAA registration status code V: Valid registration. All codes
N46KR Poynor Ray E
WHEELER EXPRESS KIT
Fixed-wing, single engine Co-owned owner
Texas
Experimental 2023-10-04 ValidFAA registration status code V: Valid registration. All codes
N4736E Socata
TB-20 TRINIDAD
Fixed-wing, single engine Barstow Barnstormers LLC
Midland, Michigan
Standard 2023-10-02 ValidFAA registration status code V: Valid registration. All codes
N144CL Robinson Helicopter
R44 II
Helicopter Individual owner
Arizona
Standard 2023-09-30 ValidFAA registration status code V: Valid registration. All codes
N7527L Robinson Helicopter
R44 II
Helicopter Chop Air LLC
Natchez, Mississippi
Standard 2023-09-27 ValidFAA registration status code V: Valid registration. All codes
N114DF Rockwell International
114
Fixed-wing, single engine Northwoods Distribution Services INC
Rhinelander, Wisconsin
Standard 2023-09-26 ValidFAA registration status code V: Valid registration. All codes
N9251E Piper
PA-32R-301
Fixed-wing, single engine Arrowpoint Investments LLC
Mountain Brk, Alabama
Standard 2023-09-25 ValidFAA registration status code V: Valid registration. All codes
N182VT Cessna
182T
Fixed-wing, single engine Starbros Aviation LLC
Southlake, Texas
Standard 2023-09-23 ValidFAA registration status code V: Valid registration. All codes
N4327P Piper
PA-32-301
Fixed-wing, single engine King Air INC
Naknek, Alaska
Standard 2023-09-23 ValidFAA registration status code V: Valid registration. All codes
N7262M Cessna
182S
Fixed-wing, single engine
Standard 2023-09-22 ValidFAA registration status code V: Valid registration. All codes
N18MP Manda Design
MK-II
Fixed-wing, single engine Individual owner
Texas
Experimental 2023-09-21 ValidFAA registration status code V: Valid registration. All codes
N60096 Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Hawaii
Standard 2023-09-21 ValidFAA registration status code V: Valid registration. All codes
N956CF Cessna
182T
Fixed-wing, single engine Highwind Aero LLC
Inyokern, California
Standard 2023-09-20 ValidFAA registration status code V: Valid registration. All codes
N55AV Lawrence B Milligan
RV-10
Fixed-wing, single engine Food Service Installations INC
Vancouver, Washington
Experimental 2023-09-16 ValidFAA registration status code V: Valid registration. All codes
N3016N Piper
PA-32-300
Fixed-wing, single engine Individual owner
California
Standard 2023-09-13 ValidFAA registration status code V: Valid registration. All codes
N6894S Piper
AEROSTAR 600
Fixed-wing, multi-engine Mk Aviation LLC
Charlotte, North Carolina
Standard 2023-09-13 ValidFAA registration status code V: Valid registration. All codes
N2471D Cessna
182S
Fixed-wing, single engine Western Edge Aviation LLC
Dickinson, North Dakota
Standard 2023-09-12 ValidFAA registration status code V: Valid registration. All codes
N110MR Herald-Ladue
SKYBOLT
Fixed-wing, single engine Individual owner
California
Experimental 2023-09-08 ValidFAA registration status code V: Valid registration. All codes
N21992 Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Alabama
Standard 2023-09-07 ValidFAA registration status code V: Valid registration. All codes
N878CB Robinson Helicopter
R44 II
Helicopter Pollux Aviation LTD
Wasilla, Alaska
Standard 2023-09-07 ValidFAA registration status code V: Valid registration. All codes
N999YD Cessna
182T
Fixed-wing, single engine Tru North LLC
Sterling, Alaska
Standard 2023-09-07 ValidFAA registration status code V: Valid registration. All codes
N294MA Cessna
182S
Fixed-wing, single engine Walker Leasing LLC
Browerville, Minnesota
Standard 2023-09-06 ValidFAA registration status code V: Valid registration. All codes
N1894S Socata
TB-20 TRINIDAD
Fixed-wing, single engine Cravey Equipment Leasing LLC
Kerrville, Texas
Standard 2023-09-05 ValidFAA registration status code V: Valid registration. All codes
N246JD Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
Utah
Standard 2023-09-01 ValidFAA registration status code V: Valid registration. All codes
N282HD Cessna
182T
Fixed-wing, single engine Davis Aviation LLC
Wilkesboro, North Carolina
Standard 2023-08-31 ValidFAA registration status code V: Valid registration. All codes
N2947U Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2023-08-31 ValidFAA registration status code V: Valid registration. All codes
N1054Q Piper
PA-32-300
Fixed-wing, single engine Taylor Hauling II LLC
Laurel, Mississippi
Standard 2023-08-30 ValidFAA registration status code V: Valid registration. All codes
N152CF Cessna
182T
Fixed-wing, single engine Charlie Fox LLC
Wilmington, Delaware
Standard 2023-08-30 ValidFAA registration status code V: Valid registration. All codes
N611SG Piper
PA-23-250
Fixed-wing, multi-engine Rph Engineering LLC
Lehi, Utah
Standard 2023-08-28 ValidFAA registration status code V: Valid registration. All codes
N7317K Kolak Andrew
SA-300 STRDSTER TOO
Fixed-wing, single engine Dawson Brian e
Tucson, Arizona
Experimental 2023-08-28 ValidFAA registration status code V: Valid registration. All codes
N156X Piper
PA-32-300
Fixed-wing, single engine N156X LLC
Fayetteville, Georgia
Standard 2023-08-23 ValidFAA registration status code V: Valid registration. All codes
N452DM Iadarola David M
GLASAIR III
Fixed-wing, single engine H Grettum LLC
Lewes, Delaware
Experimental 2023-08-23 ValidFAA registration status code V: Valid registration. All codes
N82358 Piper
PA-32R-301
Fixed-wing, single engine Nj Zev LLC
Morristown, New Jersey
Standard 2023-08-23 ValidFAA registration status code V: Valid registration. All codes
N51EL Piper
AEROSTAR 602P
Fixed-wing, multi-engine Aerostar Holdings LLC
Kalispell, Montana
Standard 2023-08-22 ValidFAA registration status code V: Valid registration. All codes
N674BD Jesse Saint/David Nichols/Galo
RV-10
Fixed-wing, single engine Individual owner
Florida
Experimental 2023-08-22 ValidFAA registration status code V: Valid registration. All codes
N196HP Piper
PA-32R-301
Fixed-wing, single engine Southtrust Adventures LLC
Pensacola, Florida
Standard 2023-08-21 ValidFAA registration status code V: Valid registration. All codes
N664H Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Tennessee
Standard 2023-08-19 ValidFAA registration status code V: Valid registration. All codes
N428RV Sean P Stephens
STEPHENS RV-10
Fixed-wing, single engine Individual owner
Florida
Experimental 2023-08-18 ValidFAA registration status code V: Valid registration. All codes
N326CF Cessna
182T
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2023-08-17 ValidFAA registration status code V: Valid registration. All codes
N2211U Piper
PA-32RT-300
Fixed-wing, single engine Hooten Joshua C
Heber Springs, Arkansas
Standard 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N4945W Rockwell International
114
Fixed-wing, single engine Blueline Flight Systems LLC
Orlando, Florida
Standard 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N540ES Slater Wayne B
LANCAIR ES
Fixed-wing, single engine Mike Scott Aviation LLC
New Orleans, Louisiana
Experimental 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N889TT Thunnell Thomas L
SEAWIND 3000
Fixed-wing, single engine Flying Farmer LLC
Wilmington, Delaware
Experimental 2023-08-16 ValidFAA registration status code V: Valid registration. All codes
N72MR Cessna
182S
Fixed-wing, single engine Individual owner
Ohio
Standard 2023-08-15 ValidFAA registration status code V: Valid registration. All codes
N5175P Cessna
182T
Fixed-wing, single engine Sbkr LLC
Greenville, Pennsylvania
Standard 2023-08-13 ValidFAA registration status code V: Valid registration. All codes
N5519V Maule
M-7-260C
Fixed-wing, single engine Individual owner
Wyoming
Standard 2023-08-11 ValidFAA registration status code V: Valid registration. All codes
N23RW Piper
PA-32R-300
Fixed-wing, single engine Co-owned owner
Alabama
Standard 2023-08-10 ValidFAA registration status code V: Valid registration. All codes
N80349 Piper
PA-32R-301
Fixed-wing, single engine Individual owner
South Carolina
Standard 2023-08-10 ValidFAA registration status code V: Valid registration. All codes
N182YZ Cessna
182S
Fixed-wing, single engine Southern Latitude LLC
Alabaster, Alabama
Standard 2023-08-09 ValidFAA registration status code V: Valid registration. All codes
N81593 Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
Ohio
Standard 2023-08-09 ValidFAA registration status code V: Valid registration. All codes
N580XX Cessna
182S
Fixed-wing, single engine Snoopy LLC
Kalispell, Montana
Standard 2023-08-07 ValidFAA registration status code V: Valid registration. All codes
N8212H Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2023-08-06 ValidFAA registration status code V: Valid registration. All codes
N182RR Cessna
182T
Fixed-wing, single engine Dont Be Nosy LLC
Fresno, California
Standard 2023-08-05 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.