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
N558E Commander Aircraft Co
114-B
Fixed-wing, single engine Aerodyme CORP
South Burlington, Vermont
Standard 2022-12-05 ValidFAA registration status code V: Valid registration. All codes
N10HP Cessna
182T
Fixed-wing, single engine Aviation Systems and Service LLC
Mounds, Oklahoma
Standard 2022-12-03 ValidFAA registration status code V: Valid registration. All codes
N628BF Russell Drosendahl & Assocs
RDA SKYBOLT
Fixed-wing, single engine Individual owner
Alabama
Experimental 2022-12-01 ValidFAA registration status code V: Valid registration. All codes
N190KA Kitchen
FW-190 REPLICA
Fixed-wing, single engine Individual owner
Virginia
Experimental 2022-11-29 ValidFAA registration status code V: Valid registration. All codes
N478SD Barrett Burton M
BARRETT SKYBOLT
Fixed-wing, single engine Individual owner
Kentucky
Experimental 2022-11-29 ValidFAA registration status code V: Valid registration. All codes
N398DB Benham Dallas L
HARMON ROCKETT II
Fixed-wing, single engine Individual owner
Indiana
Experimental 2022-11-28 ValidFAA registration status code V: Valid registration. All codes
N14078 Piper
PA-23-250
Fixed-wing, multi-engine Tundra Aviation INC
Casselton, North Dakota
Standard 2022-11-25 ValidFAA registration status code V: Valid registration. All codes
N200DF Piper
PA-23-250
Fixed-wing, multi-engine Lijack World Enterprises LLC
Winter Haven, Florida
Standard 2022-11-23 ValidFAA registration status code V: Valid registration. All codes
N516TC Cessna
T182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard 2022-11-19 ValidFAA registration status code V: Valid registration. All codes
N220MM Hogan John V
HARMON ROCKET II
Fixed-wing, single engine Co-owned owner
California
Experimental 2022-11-18 ValidFAA registration status code V: Valid registration. All codes
N329MA Cessna
182S
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2022-11-18 ValidFAA registration status code V: Valid registration. All codes
N226SM Cessna
182T
Fixed-wing, single engine Sarahmaura Aviation INC
Wayne, New Jersey
Standard 2022-11-17 ValidFAA registration status code V: Valid registration. All codes
N121HS Swarthout Harold L
VELOCITY XLRG
Fixed-wing, single engine Individual owner
Louisiana
Experimental 2022-11-15 ValidFAA registration status code V: Valid registration. All codes
N2528E Socata
TB-20 TRINIDAD
Fixed-wing, single engine Mr Dent INC
Manheim, Pennsylvania
Standard 2022-11-14 ValidFAA registration status code V: Valid registration. All codes
N707NM Francik Michael E
HARMON ROCKET II
Fixed-wing, single engine Individual owner
Texas
Experimental 2022-11-11 ValidFAA registration status code V: Valid registration. All codes
N743DR Robinson Helicopter
R44 II
Helicopter Individual owner
Virginia
Standard 2022-11-11 ValidFAA registration status code V: Valid registration. All codes
N65367 Cessna
182T
Fixed-wing, single engine Wheels Up Re LLC
Odenville, Alabama
Standard 2022-11-10 ValidFAA registration status code V: Valid registration. All codes
N280CS Cessna
182S
Fixed-wing, single engine Yolo Farms LLC
Raleigh, Mississippi
Standard 2022-11-08 ValidFAA registration status code V: Valid registration. All codes
N38509 Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Florida
Standard 2022-11-07 ValidFAA registration status code V: Valid registration. All codes
N68CA Commander Aircraft Co
114-B
Fixed-wing, single engine Asset Management Advisors CORP
Plantation, Florida
Standard 2022-11-07 ValidFAA registration status code V: Valid registration. All codes
N9596E Bellanca
17-31A
Fixed-wing, single engine Kingaire LLC
Panama City, Florida
Standard 2022-11-04 ValidFAA registration status code V: Valid registration. All codes
N5342V Piper
PA-32R-301
Fixed-wing, single engine S & L Real Estate LLC
Waterloo, Iowa
Standard 2022-11-03 ValidFAA registration status code V: Valid registration. All codes
N9441Z Cessna
182S
Fixed-wing, single engine Tjb Capital LLC
Nashville, Tennessee
Standard 2022-11-03 ValidFAA registration status code V: Valid registration. All codes
N14QW Cessna
182T
Fixed-wing, single engine Co-owned owner
California
Standard 2022-11-02 ValidFAA registration status code V: Valid registration. All codes
N5833Y Piper
PA-23-250
Fixed-wing, multi-engine Myob Group LLC
Ocala, Florida
Restricted 2022-11-02 ValidFAA registration status code V: Valid registration. All codes
N861CD David A Hansell
VANS RV-10
Fixed-wing, single engine Co-owned owner
Colorado
Experimental 2022-11-01 ValidFAA registration status code V: Valid registration. All codes
N124EF Cessna
182S
Fixed-wing, single engine Individual owner
California
Standard 2022-10-29 ValidFAA registration status code V: Valid registration. All codes
N17WE Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Alabama
Standard 2022-10-28 ValidFAA registration status code V: Valid registration. All codes
N500VE Aero Commander
500 S
Fixed-wing, multi-engine Game On Aviation LLC
Charlotte, North Carolina
Standard 2022-10-27 ValidFAA registration status code V: Valid registration. All codes
N29859 Rockwell International
114
Fixed-wing, single engine Individual owner
Michigan
Standard 2022-10-25 ValidFAA registration status code V: Valid registration. All codes
N1062U Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2022-10-24 ValidFAA registration status code V: Valid registration. All codes
N76TD Piper
PA-32R-301
Fixed-wing, single engine Individual owner
New York
Standard 2022-10-24 ValidFAA registration status code V: Valid registration. All codes
N526TR Robinson Helicopter
R44 II
Helicopter Yankee Helicopters LLC
Plainville, Connecticut
Standard 2022-10-22 ValidFAA registration status code V: Valid registration. All codes
N45ER Cessna
182T
Fixed-wing, single engine Windmark Ridge LLC
Port Saint Joe, Florida
Standard 2022-10-21 ValidFAA registration status code V: Valid registration. All codes
N110WT Piper
PA-32-301
Fixed-wing, single engine W T Aviation LLC
Wichita, Kansas
Standard 2022-10-20 ValidFAA registration status code V: Valid registration. All codes
N292AW Piper
PA-32-300
Fixed-wing, single engine Palmetto Air LLC
Spartanburg, South Carolina
Standard 2022-10-20 ValidFAA registration status code V: Valid registration. All codes
N57816 Piper
PA-36-300
Fixed-wing, single engine North Texas Dusters & Sprayers INC
Gainesville, Texas
Restricted 2022-10-20 ValidFAA registration status code V: Valid registration. All codes
N701HB Piper Aircraft Corp
PA-60-700P
Fixed-wing, multi-engine Individual owner
California
Standard 2022-10-18 ValidFAA registration status code V: Valid registration. All codes
N5223M Cessna
206H
Fixed-wing, single engine Graham Holdings INC
Atherton, California
Standard 2022-10-17 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N8429X Piper
PA-32R-301
Fixed-wing, single engine Linville Manor LLC
Reidsville, North Carolina
Standard 2022-10-15 ValidFAA registration status code V: Valid registration. All codes
N186SA Maule
M-7-235C
Fixed-wing, single engine Clemente Motor INC
Troy, New York
Standard 2022-10-14 ValidFAA registration status code V: Valid registration. All codes
N119LS Cessna
182T
Fixed-wing, single engine Marsair LLC
Franklin, Wisconsin
Standard 2022-10-13 ValidFAA registration status code V: Valid registration. All codes
N85GJ Morgan Jack R
SKYBOLT
Fixed-wing, single engine Individual owner
Florida
Experimental 2022-10-11 ValidFAA registration status code V: Valid registration. All codes
N20CQ Socata
TB-20 TRINIDAD
Fixed-wing, single engine A-1 Heavy Equipments Corporation
Pembroke Pines, Florida
Standard 2022-10-08 ValidFAA registration status code V: Valid registration. All codes
N23JG Grumbles
STEEN SKYBOLT
Fixed-wing, single engine Patriot Marine LLC
New Haven, Connecticut
Experimental 2022-10-08 ValidFAA registration status code V: Valid registration. All codes
N108Y Socata
TB-20 TRINIDAD
Fixed-wing, single engine Goduto Aeronautics LLC
Monroe, Connecticut
Standard 2022-10-06 ValidFAA registration status code V: Valid registration. All codes
N96WL Loeber A Wayne
HARMON ROCKET II
Fixed-wing, single engine Individual owner
California
Experimental 2022-10-04 ValidFAA registration status code V: Valid registration. All codes
N362FS Maule
M-7-235
Fixed-wing, single engine Florida Seaplanes LLC
Altamonte Springs, Florida
Standard 2022-10-03 ValidFAA registration status code V: Valid registration. All codes
N595HP Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Mississippi
Standard 2022-10-03 ValidFAA registration status code V: Valid registration. All codes
N484TC Wilkens Kent E
RV 10
Fixed-wing, single engine Trl Aviation LLC
Wichita, Kansas
Experimental 2022-10-01 ValidFAA registration status code V: Valid registration. All codes
N4045R Maule
M-7-260C
Fixed-wing, single engine Three Aught Seven Trucking LLC
Hyattville, Wyoming
Standard 2022-09-30 ValidFAA registration status code V: Valid registration. All codes
N544TG Robinson Helicopter
R44 II
Helicopter Kavalair LLC Series C
Marion, Montana
Standard 2022-09-22 ValidFAA registration status code V: Valid registration. All codes
N8462C Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2022-09-22 ValidFAA registration status code V: Valid registration. All codes
N942LC Piper
PA-32R-301T
Fixed-wing, single engine Withheld at owner's request
Standard 2022-09-22 ValidFAA registration status code V: Valid registration. All codes
N580HR Cessna
182S
Fixed-wing, single engine Valiair Limited Company Trustee
Casper, Wyoming
Standard 2022-09-21 ValidFAA registration status code V: Valid registration. All codes
N130ME Cessna
182S
Fixed-wing, single engine Petersens Marine Services CORP
Ridge, New York
Standard 2022-09-20 ValidFAA registration status code V: Valid registration. All codes
N140DH Huntington Dennis
VELOCITY XL RG
Fixed-wing, single engine Individual owner
Florida
Experimental 2022-09-20 ValidFAA registration status code V: Valid registration. All codes
N2345R Piper
PA-23-250
Fixed-wing, multi-engine Blue Wave Air LLC
Huntsville, Alabama
Standard 2022-09-20 ValidFAA registration status code V: Valid registration. All codes
N34GR Found Acft Canada Inc
FBA-2C1
Fixed-wing, single engine Individual owner
Washington
Standard 2022-09-20 ValidFAA registration status code V: Valid registration. All codes
N552DS Sinor Delbert
RV-10
Fixed-wing, single engine Flying Pup Adventures LLC
Missoula, Montana
Experimental 2022-09-19 ValidFAA registration status code V: Valid registration. All codes
N658SE Wood Robert D
VELOCITY XL
Fixed-wing, single engine Chandelle LLC
Wilmington, Delaware
Experimental 2022-09-19 ValidFAA registration status code V: Valid registration. All codes
N7270Q Cessna
182S
Fixed-wing, single engine Grey-Gc LLC
Picayune, Mississippi
Standard 2022-09-19 ValidFAA registration status code V: Valid registration. All codes
N236TT Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Connecticut
Standard 2022-09-17 ValidFAA registration status code V: Valid registration. All codes
N39540 Piper
PA-32RT-300
Fixed-wing, single engine Sunset Adventures LLC
Conroe, Texas
Standard 2022-09-17 ValidFAA registration status code V: Valid registration. All codes
N8160H Piper
PA-32R-301
Fixed-wing, single engine Withheld at owner's request
Standard 2022-09-17 ValidFAA registration status code V: Valid registration. All codes
N167LP Cessna
182T
Fixed-wing, single engine Co-owned owner
North Dakota
Standard 2022-09-16 ValidFAA registration status code V: Valid registration. All codes
N1047U Maule
M-7-235B
Fixed-wing, single engine Stueve'S Certified Organic Dairy
Oakdale, California
Standard 2022-09-14 ValidFAA registration status code V: Valid registration. All codes
N7778M Paschal Jr Roy E
VELOCITY XL RG
Fixed-wing, single engine Florida Best Airlines LLC
North Miami Beach, Florida
Experimental 2022-09-14 ValidFAA registration status code V: Valid registration. All codes
N72771 Cessna
182S
Fixed-wing, single engine Individual owner
Missouri
Standard 2022-09-13 ValidFAA registration status code V: Valid registration. All codes
N3643D Piper
AEROSTAR 600
Fixed-wing, multi-engine Individual owner
Florida
Standard 2022-09-12 ValidFAA registration status code V: Valid registration. All codes
N617TW Cessna
182T
Fixed-wing, single engine Tango Whiskey Aviation LLC
Cody, Wyoming
Standard 2022-09-12 ValidFAA registration status code V: Valid registration. All codes
N95ED Boling K L
WHEELER EXPRESS
Fixed-wing, single engine Individual owner
Michigan
Experimental 2022-09-08 ValidFAA registration status code V: Valid registration. All codes
N149ME Cessna
182S
Fixed-wing, single engine Individual owner
Alabama
Standard 2022-09-01 ValidFAA registration status code V: Valid registration. All codes
N2522B Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Indiana
Standard 2022-09-01 ValidFAA registration status code V: Valid registration. All codes
N9685E Bellanca
17-31A
Fixed-wing, single engine Individual owner
Minnesota
Standard 2022-09-01 ValidFAA registration status code V: Valid registration. All codes
N579CA Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Iowa
Standard 2022-08-31 ValidFAA registration status code V: Valid registration. All codes
N325LB Piper
PA-23-250
Fixed-wing, multi-engine Global Aircraft Trust INC Trustee
Cheyenne, Wyoming
Standard 2022-08-30 ValidFAA registration status code V: Valid registration. All codes
N806RR Piper
PA-23-250
Fixed-wing, multi-engine Island Flights INC
Wilmington, Delaware
Standard 2022-08-30 ValidFAA registration status code V: Valid registration. All codes
N879SP St Peter Norman/St Peter Donna
RV-10
Fixed-wing, single engine Individual owner
Pennsylvania
Experimental 2022-08-30 ValidFAA registration status code V: Valid registration. All codes
N2117H Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Indiana
Standard 2022-08-29 ValidFAA registration status code V: Valid registration. All codes
N848KF Maule
M-7-260
Fixed-wing, single engine Individual owner
Texas
Standard 2022-08-27 ValidFAA registration status code V: Valid registration. All codes
N2455L Cessna
206H
Fixed-wing, single engine Individual owner
Maryland
Standard 2022-08-24 ValidFAA registration status code V: Valid registration. All codes
N213GG Cessna
182T
Fixed-wing, single engine Shortcut LLC
Kihei, Hawaii
Standard 2022-08-19 ValidFAA registration status code V: Valid registration. All codes
N2899D Piper
PA-32-300
Fixed-wing, single engine Individual owner
New Mexico
Standard 2022-08-18 ValidFAA registration status code V: Valid registration. All codes
N39479 Piper
PA-32RT-300
Fixed-wing, single engine Pgd Flyers LLC
Newark, Delaware
Standard 2022-08-18 ValidFAA registration status code V: Valid registration. All codes
N52PG Piper
AEROSTAR 600
Fixed-wing, multi-engine Crew and Mgt Svcs LLC
Union Lake, Michigan
Standard 2022-08-18 ValidFAA registration status code V: Valid registration. All codes
N96KC Piper
PA-32R-301
Fixed-wing, single engine Jws Aviation LLC
Easton, Connecticut
Standard 2022-08-17 ValidFAA registration status code V: Valid registration. All codes
N617JL Robinson Helicopter
R44 II
Helicopter Heli Concepts LLC
Austin, Texas
Standard 2022-08-16 ValidFAA registration status code V: Valid registration. All codes
N20LT Maule
M-7-260
Fixed-wing, single engine Seagull Services LLC
San Rafael, California
Standard 2022-08-15 ValidFAA registration status code V: Valid registration. All codes
N112A Socata
TB-20 TRINIDAD
Fixed-wing, single engine Dfss LLC
Henderson, Nevada
Standard 2022-08-13 ValidFAA registration status code V: Valid registration. All codes
N333HM Piper
PA-32R-301
Fixed-wing, single engine Via Vitae Aviation LLC
Lexington, Kentucky
Standard 2022-08-13 ValidFAA registration status code V: Valid registration. All codes
N722G Piper
PA-32R-301
Fixed-wing, single engine Table for Seven Aviation LLC
Mountain Brk, Alabama
Standard 2022-08-12 ValidFAA registration status code V: Valid registration. All codes
N56442 Maule
M-6-235
Fixed-wing, single engine Withheld at owner's request
Standard 2022-08-10 ValidFAA registration status code V: Valid registration. All codes
N86WR Rice/Ross
HARMON ROCKET II
Fixed-wing, single engine Mid-Atlantic Aircraft Leasing LLC
Wilmington, Delaware
Experimental 2022-08-10 ValidFAA registration status code V: Valid registration. All codes
N584CA Commander Aircraft Co
114-B
Fixed-wing, single engine Lance Toland LTD
Griffin, Georgia
Standard 2022-08-08 ValidFAA registration status code V: Valid registration. All codes
N40NZ Piper
PA-32-300
Fixed-wing, single engine Ground Effect LLC
Atascadero, California
Standard 2022-08-06 ValidFAA registration status code V: Valid registration. All codes
N74784 Robinson Helicopter
R44 II
Helicopter Executive Helicopters INC
Myrtle Beach, South Carolina
Standard 2022-08-05 ValidFAA registration status code V: Valid registration. All codes
N257AB Cessna
182S
Fixed-wing, single engine Mountain Peak Financial INC
Palm Desert, California
Standard 2022-08-03 ValidFAA registration status code V: Valid registration. All codes
N83SM Cessna
T182T
Fixed-wing, single engine Main Aviation LLC
Naches, Washington
Standard 2022-08-02 ValidFAA registration status code V: Valid registration. All codes
N9259R Piper
PA-32R-301
Fixed-wing, single engine Andiamo Aviation LLC
Stonecrest, Georgia
Standard 2022-08-02 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 8, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.