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
N747F Haupt Charles
FOXTROT
Fixed-wing, single engine Co-owned owner
Ohio
Experimental 2012-05-17 ValidFAA registration status code V: Valid registration. All codes
N9511G Cessna
182S
Fixed-wing, single engine Individual owner
Mississippi
Standard 2012-05-17 ValidFAA registration status code V: Valid registration. All codes
N2185K Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
California
Standard 2012-05-16 ValidFAA registration status code V: Valid registration. All codes
N1712S Cessna
182T
Fixed-wing, single engine North Carolina Dept of Enviroment & Natural Resour
Raleigh, North Carolina
Standard 2012-05-09 ValidFAA registration status code V: Valid registration. All codes
N8090J Piper
AEROSTAR 600
Fixed-wing, multi-engine Wesellairplanes.Com INC
Wilmington, Delaware
Standard 2012-05-08 ValidFAA registration status code V: Valid registration. All codes
N687MS Stewart Michael
RV-8
Fixed-wing, single engine Scnicto LLC
Lewes, Delaware
Experimental 2012-05-03 ValidFAA registration status code V: Valid registration. All codes
N5650P Maule
M-6-235
Fixed-wing, single engine Individual owner
New Mexico
Standard 2012-05-01 ValidFAA registration status code V: Valid registration. All codes
N2353K Cessna
182S
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2012-04-30 ValidFAA registration status code V: Valid registration. All codes
N188ME Cessna
206H
Fixed-wing, single engine Senior Mi LLC
Batavia, Illinois
Standard 2012-04-19 ValidFAA registration status code V: Valid registration. All codes
N241VS Robinson Helicopter
R44
Helicopter Djd Aero CORP
Wilmington, Delaware
Standard 2012-04-17 ValidFAA registration status code V: Valid registration. All codes
N994KC Robinson Helicopter
R44 II
Helicopter Individual owner
North Carolina
Standard 2012-04-12 ValidFAA registration status code V: Valid registration. All codes
N74685 Robinson Helicopter
R44 II
Helicopter Independent Helicopters LLC
New Windsor, New York
Standard 2012-04-04 ValidFAA registration status code V: Valid registration. All codes
N3SZ Hearne Roy A
GLASAIR III
Fixed-wing, single engine Individual owner
California
Experimental 2012-04-03 ValidFAA registration status code V: Valid registration. All codes
N788S Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Florida
Standard 2012-04-03 ValidFAA registration status code V: Valid registration. All codes
N74BG Cessna
182S
Fixed-wing, single engine Reliance Aviation LLC
Mendon, New York
Standard 2012-03-26 ValidFAA registration status code V: Valid registration. All codes
N260BD Maule
M-7-260
Fixed-wing, single engine Individual owner
Washington
Standard 2012-03-19 ValidFAA registration status code V: Valid registration. All codes
N35183 Cessna
182T
Fixed-wing, single engine Stone Industrial Contractors INC
Savannah, Georgia
Standard 2012-03-16 ValidFAA registration status code V: Valid registration. All codes
N80426 Piper
PA-32-301
Fixed-wing, single engine Pcb Aviation LLC
Davidson, North Carolina
Standard 2012-03-16 ValidFAA registration status code V: Valid registration. All codes
N341DC Piper
PA-32R-301
Fixed-wing, single engine Individual owner
New Jersey
Standard 2012-03-15 ValidFAA registration status code V: Valid registration. All codes
N65862 Cessna
182T
Fixed-wing, single engine Southwest Flying Club INC
The Woodlands, Texas
Standard 2012-03-15 ValidFAA registration status code V: Valid registration. All codes
N5225R Cessna
182T
Fixed-wing, single engine Individual owner
Minnesota
Standard 2012-03-14 ValidFAA registration status code V: Valid registration. All codes
N1937K Piper
PA-32R-301
Fixed-wing, single engine Griffin Contracting CO
Bloomfield, Missouri
Standard 2012-03-06 ValidFAA registration status code V: Valid registration. All codes
N38388 Piper
PA-32R-300
Fixed-wing, single engine Hosanna Industries INC
Gibsonia, Pennsylvania
Standard 2012-03-01 ValidFAA registration status code V: Valid registration. All codes
N158CW Cessna
182T
Fixed-wing, single engine Co-owned owner
Texas
Standard 2012-02-27 ValidFAA registration status code V: Valid registration. All codes
N723CB Rockwell International
114
Fixed-wing, single engine Privateflyer LLC
Lewes, Delaware
Standard 2012-02-27 ValidFAA registration status code V: Valid registration. All codes
N3062W Piper
PA-32-300
Fixed-wing, single engine D M Aviation II LLP
Park River, North Dakota
Standard 2012-02-15 ValidFAA registration status code V: Valid registration. All codes
N61921 Ernst Robert
ERNST 109
Fixed-wing, single engine Sts Aviation LLC
Daytona Beach, Florida
Experimental 2012-02-08 ValidFAA registration status code V: Valid registration. All codes
N1252E Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2012-02-02 ValidFAA registration status code V: Valid registration. All codes
N300RW Williams Ray L
PITTS S2S
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2012-01-31 ValidFAA registration status code V: Valid registration. All codes
N43045 Grouleff Greg
HARMON ROCKET II
Fixed-wing, single engine Individual owner
California
Experimental 2012-01-21 ValidFAA registration status code V: Valid registration. All codes
N729MN Socata
TB-20 TRINIDAD
Fixed-wing, single engine Cool Springs Consulting INC
Cocoa Beach, Florida
Standard 2012-01-21 ValidFAA registration status code V: Valid registration. All codes
N800PR Robinson Helicopter
R44 II
Helicopter Uhi INC
Provo, Utah
Standard 2012-01-21 ValidFAA registration status code V: Valid registration. All codes
N2174V Cessna
182T
Fixed-wing, single engine Rjr Leasing LLC
Wilmington, Delaware
Standard 2012-01-11 ValidFAA registration status code V: Valid registration. All codes
N54GA Robinson Helicopter
R44 II
Helicopter Crosswind Leasing LLC
Prescott, Arizona
Standard 2012-01-11 ValidFAA registration status code V: Valid registration. All codes
N2881G Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2012-01-09 ValidFAA registration status code V: Valid registration. All codes
N47MK Piper
PA-23-250
Fixed-wing, multi-engine Aztec Aviation Two LLC
Augusta, Georgia
Standard 2012-01-09 ValidFAA registration status code V: Valid registration. All codes
N813JM Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Delaware
Standard 2012-01-03 ValidFAA registration status code V: Valid registration. All codes
N116VG Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2011-12-28 ValidFAA registration status code V: Valid registration. All codes
N97KD Donald W Yoakley
GLASAIR III
Fixed-wing, single engine Individual owner
Florida
Experimental 2011-12-20 ValidFAA registration status code V: Valid registration. All codes
N813DK Piper
PA-32R-301
Fixed-wing, single engine Robinmith Aero INC
Emerson, Iowa
Standard 2011-12-08 ValidFAA registration status code V: Valid registration. All codes
N111DS Piper
AEROSTAR 601P
Fixed-wing, multi-engine Starflight Aviation INC
Wilmington, Delaware
Standard 2011-12-07 ValidFAA registration status code V: Valid registration. All codes
N777PY Lucke Stewart
S LUCKE S2L
Fixed-wing, single engine Mark Britain Productions LLC
Amarillo, Texas
Experimental 2011-12-05 ValidFAA registration status code V: Valid registration. All codes
N624BB Commander Aircraft Co
114-B
Fixed-wing, single engine Petey LLC
Lake Arrowhead, California
Standard 2011-12-02 ValidFAA registration status code V: Valid registration. All codes
N629FC Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Arkansas
Standard 2011-12-01 ValidFAA registration status code V: Valid registration. All codes
N700WG Piper
AEROSTAR 602P
Fixed-wing, multi-engine Neuro Endovascular Services and Technology LLC
Palm Harbor, Florida
Standard 2011-11-30 ValidFAA registration status code V: Valid registration. All codes
N260JF Piper
PA-24-260
Fixed-wing, single engine Individual owner
Texas
Standard 2011-11-21 ValidFAA registration status code V: Valid registration. All codes
N601PZ Piper
AEROSTAR 601P
Fixed-wing, multi-engine Skyking Aviation Services LLC
Carson City, Nevada
Standard 2011-11-21 ValidFAA registration status code V: Valid registration. All codes
N24470 Cessna
182S
Fixed-wing, single engine Co-owned owner
California
Standard 2011-11-15 ValidFAA registration status code V: Valid registration. All codes
N31739 Piper
PA-32RT-300
Fixed-wing, single engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2011-11-09 ValidFAA registration status code V: Valid registration. All codes
N468 Maule
M-6-235
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2011-11-08 ValidFAA registration status code V: Valid registration. All codes
N232Z Cessna
182T
Fixed-wing, single engine Vance Jordan Enterprises INC
Wilmington, Delaware
Standard 2011-11-07 ValidFAA registration status code V: Valid registration. All codes
N193DH Hatten David L
GLASAIR III
Fixed-wing, single engine Individual owner
Texas
Experimental 2011-11-02 ValidFAA registration status code V: Valid registration. All codes
N87AV Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Texas
Standard 2011-10-24 ValidFAA registration status code V: Valid registration. All codes
N6832J Piper
PA-32R-300
Fixed-wing, single engine Holseberg Properties LLC
Ridgeville, South Carolina
Standard 2011-10-21 ValidFAA registration status code V: Valid registration. All codes
N80LT Socata
TB-20 TRINIDAD
Fixed-wing, single engine Eastern Stearman INC Trustee
Leesburg, Virginia
Standard 2011-10-20 ValidFAA registration status code V: Valid registration. All codes
N1756V Cessna
182T
Fixed-wing, single engine Mtp Flyers
Riverhead, New York
Standard 2011-10-19 ValidFAA registration status code V: Valid registration. All codes
N242U Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2011-10-18 ValidFAA registration status code V: Valid registration. All codes
N246N Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2011-10-18 ValidFAA registration status code V: Valid registration. All codes
N250E Cessna
206H
Fixed-wing, single engine Silver Creek Aviation Services
Fort Worth, Texas
Standard 2011-10-18 ValidFAA registration status code V: Valid registration. All codes
N23676 Cessna
182S
Fixed-wing, single engine A&E Flying Club of Los Angeles INC
Hawthorne, California
Standard 2011-10-13 ValidFAA registration status code V: Valid registration. All codes
N39551 Piper
PA-32RT-300
Fixed-wing, single engine Lance 551 LLC
Bristol, Indiana
Standard 2011-10-11 ValidFAA registration status code V: Valid registration. All codes
N8294K Piper
PA-32R-301
Fixed-wing, single engine Advantage 94 Kilo LLC
Grosse Pointe Park, Michigan
Standard 2011-10-05 ValidFAA registration status code V: Valid registration. All codes
N143MY Robinson Helicopter
R44 II
Helicopter Peaks Rental LLC
Aurora, Colorado
Standard 2011-10-03 ValidFAA registration status code V: Valid registration. All codes
N151JL Holman Paul J
GLASAIR III
Fixed-wing, single engine Individual owner
Arizona
Experimental 2011-09-26 ValidFAA registration status code V: Valid registration. All codes
N11VX Knight Jenner E
VELOX REVOLUTION II
Fixed-wing, single engine Individual owner
Utah
Experimental 2011-09-21 ValidFAA registration status code V: Valid registration. All codes
N2349X Cessna
182S
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2011-09-19 ValidFAA registration status code V: Valid registration. All codes
N9DE Ertel Dick
SKYBOLT 1-A
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2011-08-31 ValidFAA registration status code V: Valid registration. All codes
N423R Piper
PA-32R-301
Fixed-wing, single engine Elint Technology INC
Gulf Breeze, Florida
Standard 2011-08-24 ValidFAA registration status code V: Valid registration. All codes
N343ME Cessna
182S
Fixed-wing, single engine Co-owned owner
West Virginia
Standard 2011-08-22 ValidFAA registration status code V: Valid registration. All codes
N555JL Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
New Jersey
Standard 2011-08-18 ValidFAA registration status code V: Valid registration. All codes
N9729C Piper
PA-32-300
Fixed-wing, single engine Effingham Eta LLC
Effingham, Illinois
Standard 2011-08-18 ValidFAA registration status code V: Valid registration. All codes
N619JS Simmons Jim
SKYBOLT
Fixed-wing, single engine Individual owner
Louisiana
Experimental 2011-08-16 ValidFAA registration status code V: Valid registration. All codes
N413RD Cessna
182T
Fixed-wing, single engine Dos Amigos Air Service LLC
Carrizo Springs, Texas
Standard 2011-08-12 ValidFAA registration status code V: Valid registration. All codes
N237AJ Cessna
182S
Fixed-wing, single engine Individual owner
New Mexico
Standard 2011-08-10 ValidFAA registration status code V: Valid registration. All codes
N49EZ Marr/Eckberg
LONG-EZ
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2011-08-09 ValidFAA registration status code V: Valid registration. All codes
N8129H Piper
PA-32R-301
Fixed-wing, single engine Adventure Bound LLC
Saint Paul, Nebraska
Standard 2011-08-09 ValidFAA registration status code V: Valid registration. All codes
N357JP Robinson Helicopter
R44 II
Helicopter November Alpha LLC
Los Angeles, California
Standard 2011-08-02 ValidFAA registration status code V: Valid registration. All codes
N84MF Frederick Cheryl A
FREDERICK F1
Fixed-wing, single engine Planelease LLC
Mason City, Iowa
Experimental 2011-07-28 ValidFAA registration status code V: Valid registration. All codes
N2431G Cessna
182S
Fixed-wing, single engine Gulf Coast Helicopters INC
Pearland, Texas
Standard 2011-07-26 ValidFAA registration status code V: Valid registration. All codes
N7613X Maule
M-6-235
Fixed-wing, single engine Individual owner
Tennessee
Standard 2011-07-23 ValidFAA registration status code V: Valid registration. All codes
N816C Piper
AEROSTAR 600
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2011-07-23 ValidFAA registration status code V: Valid registration. All codes
N65602 Cessna
182T
Fixed-wing, single engine Individual owner
Nevada
Standard 2011-07-22 ValidFAA registration status code V: Valid registration. All codes
N808BP Cessna
182T
Fixed-wing, single engine Chemtech-Engineering INC
Racine, Wisconsin
Standard 2011-07-22 ValidFAA registration status code V: Valid registration. All codes
N81013 Piper
PA-32R-301
Fixed-wing, single engine Saratoga N81013 LLC
Santa Rosa Beach, Florida
Standard 2011-07-21 ValidFAA registration status code V: Valid registration. All codes
N2463B Cessna
182T
Fixed-wing, single engine Michigan Dept of Natural Resources
Roscommon, Michigan
Standard 2011-07-14 ValidFAA registration status code V: Valid registration. All codes
N9238R Maule
M-8-235
Fixed-wing, single engine Individual owner
Illinois
Standard 2011-07-07 ValidFAA registration status code V: Valid registration. All codes
N5650J Maule
M-6-235
Fixed-wing, single engine Waypoint LLC
Fairbanks, Alaska
Standard 2011-07-06 ValidFAA registration status code V: Valid registration. All codes
N8408T Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Brocas LLC
Marlborough, New Hampshire
Standard 2011-07-05 ValidFAA registration status code V: Valid registration. All codes
N144ES Robinson Helicopter
R44 II
Helicopter Spain Heliventures LLC
Wilmington, Delaware
Standard 2011-06-28 ValidFAA registration status code V: Valid registration. All codes
N20W Can Park Inc
SEAWIND KIT
Fixed-wing, single engine Seawind Mjw LLC
Wappingers Falls, New York
Experimental 2011-06-20 ValidFAA registration status code V: Valid registration. All codes
N812DJ Piper
PA-32-301
Fixed-wing, single engine Delaware Air LLC
Dover, Delaware
Standard 2011-06-18 ValidFAA registration status code V: Valid registration. All codes
N9150Y Piper
PA-32R-301
Fixed-wing, single engine Tyler Transport LLC
Troy, Alabama
Standard 2011-06-14 ValidFAA registration status code V: Valid registration. All codes
N42985 Piper
PA-32-301
Fixed-wing, single engine Individual owner
Michigan
Standard 2011-06-09 ValidFAA registration status code V: Valid registration. All codes
N8421A Piper
PA-32-301
Fixed-wing, single engine King Air INC
Naknek, Alaska
Standard 2011-06-09 ValidFAA registration status code V: Valid registration. All codes
N409JB Smith
AEROSTAR 600
Fixed-wing, multi-engine Penstar Partners LLC
Wilmington, Delaware
Standard 2011-06-07 ValidFAA registration status code V: Valid registration. All codes
N14RE Eicher Robert L
CHRISTEN EAGLE
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2011-06-01 ValidFAA registration status code V: Valid registration. All codes
N75US Cessna
182S
Fixed-wing, single engine Jbh Air LLC
Kent, Washington
Standard 2011-06-01 ValidFAA registration status code V: Valid registration. All codes
N982BR Cessna
182S
Fixed-wing, single engine Individual owner
California
Standard 2011-05-26 ValidFAA registration status code V: Valid registration. All codes
N368M Cessna
182S
Fixed-wing, single engine State of Montana
Helena, Montana
Standard 2011-05-24 ValidFAA registration status code V: Valid registration. All codes
N6280Y Piper
PA-23-250
Fixed-wing, multi-engine J & S of Wi LLC
Iola, Wisconsin
Standard 2011-05-12 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.