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
N43PT Piper
PA-23-250
Fixed-wing, multi-engine Oso Air LLC
Missoula, Montana
Standard 2015-03-03 ValidFAA registration status code V: Valid registration. All codes
N2214L Cessna
182T
Fixed-wing, single engine Blue Bird Aviation LLC
San Jose, California
Standard 2015-02-26 ValidFAA registration status code V: Valid registration. All codes
N96RG Gage
STEEN SKYBOLT
Fixed-wing, single engine Individual owner
California
Experimental 2015-02-20 ValidFAA registration status code V: Valid registration. All codes
N100JV Jv Air Llc
VANS RV-10
Fixed-wing, single engine Individual owner
Michigan
Experimental 2015-02-19 ValidFAA registration status code V: Valid registration. All codes
N2032M Piper
PA-32-300
Fixed-wing, single engine Kab Air LLC
Eden Prairie, Minnesota
Standard 2015-02-19 ValidFAA registration status code V: Valid registration. All codes
N5188T Cessna
182T
Fixed-wing, single engine Individual owner
California
Standard 2015-02-19 ValidFAA registration status code V: Valid registration. All codes
N981WS Cessna
182S
Fixed-wing, single engine Nayrmarc LLC
Linden, Michigan
Standard 2015-02-19 ValidFAA registration status code V: Valid registration. All codes
N2362C Cessna
182S
Fixed-wing, single engine Individual owner
South Carolina
Standard 2015-02-09 ValidFAA registration status code V: Valid registration. All codes
N8470P Piper
PA-32-301
Fixed-wing, single engine Tricounty INC
Garden City, Kansas
Standard 2015-02-03 ValidFAA registration status code V: Valid registration. All codes
N1045Y Cessna
182T
Fixed-wing, single engine Co-owned owner
New York
Standard 2015-02-02 ValidFAA registration status code V: Valid registration. All codes
N8DW Dehavilland
DHC-1
Fixed-wing, single engine Tensas Flying Service LLC
St Joseph, Louisiana
Experimental 2015-02-02 ValidFAA registration status code V: Valid registration. All codes
N169BW Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Idaho
Standard 2015-01-27 ValidFAA registration status code V: Valid registration. All codes
N9696F Cessna
182S
Fixed-wing, single engine Individual owner
Illinois
Standard 2015-01-16 ValidFAA registration status code V: Valid registration. All codes
N944PC Robinson Helicopter
R44 II
Helicopter Alba Leasing Services LLC
Phoenix, Arizona
Standard 2015-01-15 ValidFAA registration status code V: Valid registration. All codes
N9472F Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2015-01-15 ValidFAA registration status code V: Valid registration. All codes
N356DP Piper
PA-32RT-300
Fixed-wing, single engine Mid America Aircraft LLC
O Fallon, Illinois
Standard 2015-01-12 ValidFAA registration status code V: Valid registration. All codes
N45HR Maule
MT-7-260
Fixed-wing, single engine Gemi INC
Lakeway, Texas
Standard 2015-01-06 ValidFAA registration status code V: Valid registration. All codes
N83210 Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
New York
Standard 2014-12-30 ValidFAA registration status code V: Valid registration. All codes
N767MD Socata
TB-20 TRINIDAD
Fixed-wing, single engine Air Meg LLC
Redington Beach, Florida
Standard 2014-12-24 ValidFAA registration status code V: Valid registration. All codes
N2184D Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Texas
Standard 2014-12-15 ValidFAA registration status code V: Valid registration. All codes
N666ZZ Rossiter David A
TEAM ROCKET LP F1
Fixed-wing, single engine Rocket Ride LLC
Yakima, Washington
Experimental 2014-12-09 ValidFAA registration status code V: Valid registration. All codes
N78RL Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
California
Standard 2014-12-09 ValidFAA registration status code V: Valid registration. All codes
N275PT Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2014-12-03 ValidFAA registration status code V: Valid registration. All codes
N2960Y Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2014-12-02 ValidFAA registration status code V: Valid registration. All codes
N501GT Robinson Helicopter
R44 II
Helicopter Pollux Aviation LTD
Wasilla, Alaska
Standard 2014-12-01 ValidFAA registration status code V: Valid registration. All codes
N453KC Piper
PA-32R-301
Fixed-wing, single engine Windward Aviation Solutions LLC
Saint Marys, Ohio
Standard 2014-11-26 ValidFAA registration status code V: Valid registration. All codes
N901RG Smith
AEROSTAR 601P
Fixed-wing, multi-engine Precision Aero Marine INC
Plymouth, Massachusetts
Standard 2014-11-19 ValidFAA registration status code V: Valid registration. All codes
N301PS Piper
PA-32-301
Fixed-wing, single engine 3B1G Enterprises LLC
Phoenix, Arizona
Standard 2014-11-06 ValidFAA registration status code V: Valid registration. All codes
N31087 Piper
PA32-301FT
Fixed-wing, single engine Lvr Air INC
East Hartford, Connecticut
Standard 2014-11-06 ValidFAA registration status code V: Valid registration. All codes
N49US Cessna
182S
Fixed-wing, single engine United States Aviation Underwriters INC
Addison, Texas
Standard 2014-11-05 ValidFAA registration status code V: Valid registration. All codes
N944WT Robinson Helicopter
R44 II
Helicopter Holt Helicopters INC
Uvalde, Texas
Standard 2014-11-04 ValidFAA registration status code V: Valid registration. All codes
N2680X Cessna
182S
Fixed-wing, single engine N2680X LLC
Mountain Home, Arkansas
Standard 2014-10-20 ValidFAA registration status code V: Valid registration. All codes
N540MG Staudacher Jon
STAUDACHER 300
Fixed-wing, single engine Individual owner
Pennsylvania
Experimental 2014-10-17 ValidFAA registration status code V: Valid registration. All codes
N7768V Aero Commander
CALLAIR A-9B
Fixed-wing, single engine Sky Sailing INC
Warner Springs, California
Restricted 2014-10-17 ValidFAA registration status code V: Valid registration. All codes
N4245R Maule
M-7-235C
Fixed-wing, single engine R J Aviators LLC
Dover, Delaware
Standard 2014-10-16 ValidFAA registration status code V: Valid registration. All codes
N260CD Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
California
Standard 2014-10-09 ValidFAA registration status code V: Valid registration. All codes
N65937 Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2014-10-09 ValidFAA registration status code V: Valid registration. All codes
N151BS Cessna
182S
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2014-10-08 ValidFAA registration status code V: Valid registration. All codes
N56447 Maule
M-6-235
Fixed-wing, single engine Individual owner
Colorado
Standard 2014-10-07 ValidFAA registration status code V: Valid registration. All codes
N711KF Cessna
182T
Fixed-wing, single engine J-Com Aviation LLC
Richland, Mississippi
Standard 2014-10-03 ValidFAA registration status code V: Valid registration. All codes
N330AL Mckenzie Alan C
GLASAIR III SH3R
Fixed-wing, single engine Individual owner
Utah
Experimental 2014-09-29 ValidFAA registration status code V: Valid registration. All codes
N29172 Piper
PA-32-300
Fixed-wing, single engine Individual owner
New York
Standard 2014-09-18 ValidFAA registration status code V: Valid registration. All codes
N527GT Rockwell International
114A
Fixed-wing, single engine Individual owner
Texas
Standard 2014-09-18 ValidFAA registration status code V: Valid registration. All codes
N31R Piper
PA-32RT-300
Fixed-wing, single engine Kf Lift LLC
Snyder, Texas
Standard 2014-09-16 ValidFAA registration status code V: Valid registration. All codes
N102FM Leonard David S
RV10
Fixed-wing, single engine Withheld at owner's request
Experimental 2014-09-15 ValidFAA registration status code V: Valid registration. All codes
N813HC Cessna
182T
Fixed-wing, single engine Georgia Forestry Commission
Macon, Georgia
Standard 2014-09-11 ValidFAA registration status code V: Valid registration. All codes
N221DK Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Missouri
Standard 2014-09-09 ValidFAA registration status code V: Valid registration. All codes
N47698 Piper
PA-31-310
Fixed-wing, multi-engine Individual owner
Alaska
Standard 2014-09-09 ValidFAA registration status code V: Valid registration. All codes
N146X Piper
PA32-301FT
Fixed-wing, single engine Individual owner
Florida
Standard 2014-08-29 ValidFAA registration status code V: Valid registration. All codes
N55TG Maule
M-6-235
Fixed-wing, single engine Individual owner
Connecticut
Standard 2014-08-29 ValidFAA registration status code V: Valid registration. All codes
N540AW Zivko Aeronautics Inc
EDGE 540
Fixed-wing, single engine Individual owner
California
Experimental 2014-08-28 ValidFAA registration status code V: Valid registration. All codes
N995TH Maule
M-7-235C
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 2014-08-19 ValidFAA registration status code V: Valid registration. All codes
N449AS Robinson Helicopter
R44 II
Helicopter Concho Aviation LLC
Sterling City, Texas
Multiple 2014-08-11 ValidFAA registration status code V: Valid registration. All codes
N7148Q Cessna
182S
Fixed-wing, single engine Individual owner
Oregon
Standard 2014-08-08 ValidFAA registration status code V: Valid registration. All codes
N1300P Maule
MT-7-235
Fixed-wing, single engine Co-owned owner
Idaho
Standard 2014-08-07 ValidFAA registration status code V: Valid registration. All codes
N74563 Robinson Helicopter
R44 II
Helicopter Black Bird Holdings LLC
Gilbert, Arizona
Standard 2014-08-05 ValidFAA registration status code V: Valid registration. All codes
N103AR Cessna
182T
Fixed-wing, single engine Hd Outdoor Advs LLC
Coalgate, Oklahoma
Standard 2014-08-04 ValidFAA registration status code V: Valid registration. All codes
N122GP Putney Gordon A
PUTNEY VELCTY LW/RG
Fixed-wing, single engine Co-owned owner
Maryland
Experimental 2014-07-31 ValidFAA registration status code V: Valid registration. All codes
N246AZ Piper
PA-28-236
Fixed-wing, single engine Withheld at owner's request
Standard 2014-07-28 ValidFAA registration status code V: Valid registration. All codes
N226L Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2014-07-25 ValidFAA registration status code V: Valid registration. All codes
N229E Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2014-07-25 ValidFAA registration status code V: Valid registration. All codes
N238D Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2014-07-25 ValidFAA registration status code V: Valid registration. All codes
N807TM Piper
AEROSTAR 601P
Fixed-wing, multi-engine Lidija LLC
Grass Valley, California
Standard 2014-07-25 ValidFAA registration status code V: Valid registration. All codes
N173M Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2014-07-23 ValidFAA registration status code V: Valid registration. All codes
N310EV Piper
PA-32-300
Fixed-wing, single engine Mission Air Capital Services LLC
San Antonio, Texas
Standard 2014-07-22 ValidFAA registration status code V: Valid registration. All codes
N6081G Piper
AEROSTAR 601P
Fixed-wing, multi-engine Fire Master INC
Tallapoosa, Georgia
Standard 2014-07-22 ValidFAA registration status code V: Valid registration. All codes
N612EH Piper
PA-23-250
Fixed-wing, multi-engine Island Flyers INC
Addison, Texas
Standard 2014-07-21 ValidFAA registration status code V: Valid registration. All codes
N2217Y Beech
K35
Fixed-wing, single engine Co-owned owner
California
Standard 2014-07-18 ValidFAA registration status code V: Valid registration. All codes
N1129P Cessna
182T
Fixed-wing, single engine Bonzo Air LLC
Saint Petersburg, Florida
Standard 2014-07-07 ValidFAA registration status code V: Valid registration. All codes
N824BH Malhomme Bernard E
SEAWIND
Fixed-wing, single engine Lm Air LLC
Minot, North Dakota
Experimental 2014-07-02 ValidFAA registration status code V: Valid registration. All codes
N9134K Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Michigan
Standard 2014-07-01 ValidFAA registration status code V: Valid registration. All codes
N121JC Cash Jimmy L
F-1 ROCKET
Fixed-wing, single engine Individual owner
South Carolina
Experimental 2014-06-26 ValidFAA registration status code V: Valid registration. All codes
N395TC Commander Aircraft Co
114TC
Fixed-wing, single engine Aqz Aviation INC Trustee
Wilmington, Delaware
Standard 2014-06-17 ValidFAA registration status code V: Valid registration. All codes
N513CW Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Florida
Standard 2014-06-11 ValidFAA registration status code V: Valid registration. All codes
N700WP Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2014-06-10 ValidFAA registration status code V: Valid registration. All codes
N3635Y Piper
AEROSTAR 601P
Fixed-wing, multi-engine Go Mango LLC
Las Vegas, Nevada
Standard 2014-06-06 ValidFAA registration status code V: Valid registration. All codes
N777ZB Found Acft Canada Inc
FBA-2C1
Fixed-wing, single engine Kingfisher Air INC
Kodiak, Alaska
Standard 2014-06-06 ValidFAA registration status code V: Valid registration. All codes
N2350H Cessna
182T
Fixed-wing, single engine Co-owned owner
California
Standard 2014-06-04 ValidFAA registration status code V: Valid registration. All codes
N8225P Piper
PA-32-301
Fixed-wing, single engine Tenntech CORP
Wilmington, Delaware
Standard 2014-06-02 ValidFAA registration status code V: Valid registration. All codes
N808LL Robinson Helicopter
R44 II
Helicopter Apex Helicopters LLC
Pearland, Texas
Multiple 2014-05-30 ValidFAA registration status code V: Valid registration. All codes
N123MV Robinson Helicopter
R44 II
Helicopter Emerald City Aircraft Leasing INC
Port Orchard, Washington
Standard 2014-05-28 ValidFAA registration status code V: Valid registration. All codes
N2141D Cessna
182T
Fixed-wing, single engine Foturis INC
Kingston, Pennsylvania
Standard 2014-05-27 ValidFAA registration status code V: Valid registration. All codes
N801GA Piper
PA-32R-301
Fixed-wing, single engine On 2 Abaco LLC
Leesburg, Florida
Standard 2014-05-21 ValidFAA registration status code V: Valid registration. All codes
N217TX Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Alabama
Standard 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N414ME Cessna
182S
Fixed-wing, single engine Eight Ball Flying Club INC
Van Nuys, California
Standard 2014-05-20 ValidFAA registration status code V: Valid registration. All codes
N22EE Piper
AEROSTAR 602P
Fixed-wing, multi-engine Individual owner
Florida
Standard 2014-05-19 ValidFAA registration status code V: Valid registration. All codes
N777WJ Mark W Morrison
RV10
Fixed-wing, single engine Individual owner
Illinois
Experimental 2014-05-12 ValidFAA registration status code V: Valid registration. All codes
N91ET Piper
PA-32RT-300
Fixed-wing, single engine Anchor Aviation LLC
Myrtle Beach, South Carolina
Standard 2014-05-09 ValidFAA registration status code V: Valid registration. All codes
N83JW Piper
PA-23-250
Fixed-wing, multi-engine Carpe Diem Aviation LLC
Cleveland Heights, Ohio
Standard 2014-05-06 ValidFAA registration status code V: Valid registration. All codes
N8160P Piper
PA-24-250
Fixed-wing, single engine South Texas Weather Modification Association
Pleasanton, Texas
Restricted 2014-05-02 ValidFAA registration status code V: Valid registration. All codes
N125AM Muhs Alan
VANS RV-10
Fixed-wing, single engine Individual owner
Arizona
Experimental 2014-04-28 ValidFAA registration status code V: Valid registration. All codes
N219LE Robinson Helicopter
R44 II
Helicopter Leading Edge Aviation INC
Bend, Oregon
Standard 2014-04-28 ValidFAA registration status code V: Valid registration. All codes
N424SH Robinson Helicopter
R44 II
Helicopter Leading Edge Aviation INC
Bend, Oregon
Standard 2014-04-28 ValidFAA registration status code V: Valid registration. All codes
N681LE Robinson Helicopter
R44 II
Helicopter Leading Edge Aviation INC
Bend, Oregon
Standard 2014-04-28 ValidFAA registration status code V: Valid registration. All codes
N98RD Piper
AEROSTAR 602P
Fixed-wing, multi-engine Route 66 Aerostars LLC
Galena, Kansas
Standard 2014-04-25 ValidFAA registration status code V: Valid registration. All codes
N123SR Johnson Luther
SUPER REBEL
Fixed-wing, single engine Individual owner
Hawaii
Experimental 2014-04-23 ValidFAA registration status code V: Valid registration. All codes
N2242C Cessna
182S
Fixed-wing, single engine Cac of Ar LLC
White Hall, Arkansas
Standard 2014-04-23 ValidFAA registration status code V: Valid registration. All codes
N699W Seabourn Scott R
F-1 ROCKET
Fixed-wing, single engine Individual owner
Oregon
Experimental 2014-04-23 ValidFAA registration status code V: Valid registration. All codes
N446AS Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Virginia
Standard 2014-04-17 ValidFAA registration status code V: Valid registration. All codes
N373RP Funk P Funk B Kornelson R
SH-3R GLASAIR III
Fixed-wing, single engine Individual owner
Oklahoma
Experimental 2014-04-16 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.