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
N422KB Cessna
182S
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2020-09-21 ValidFAA registration status code V: Valid registration. All codes
N333MM Neil Corella
VANS RV 10
Fixed-wing, single engine Individual owner
Arkansas
Experimental 2020-09-18 ValidFAA registration status code V: Valid registration. All codes
N442HH Robinson Helicopter
R44 II
Helicopter Southern Utah University
Cedar City, Utah
Standard 2020-09-15 ValidFAA registration status code V: Valid registration. All codes
N856SC Piper
PA-32RT-300
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-09-15 ValidFAA registration status code V: Valid registration. All codes
N9675C Piper
PA-32-300
Fixed-wing, single engine Withheld at owner's request
Standard 2020-09-15 ValidFAA registration status code V: Valid registration. All codes
N2377P Cessna
182S
Fixed-wing, single engine Individual owner
Illinois
Standard 2020-09-10 ValidFAA registration status code V: Valid registration. All codes
N5657A Maule
M-7-235
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2020-09-10 ValidFAA registration status code V: Valid registration. All codes
N338ME Cessna
182S
Fixed-wing, single engine Co-owned owner
Nevada
Standard 2020-09-09 ValidFAA registration status code V: Valid registration. All codes
N823BB Iar Sa Brasov
IAR 823
Fixed-wing, single engine Co-owned owner
Washington
Experimental 2020-09-09 ValidFAA registration status code V: Valid registration. All codes
N3HV Miller F P/Weitman D
GLASAIR III SH-3R
Fixed-wing, single engine Individual owner
California
Experimental 2020-09-08 ValidFAA registration status code V: Valid registration. All codes
N69MF Piper
AEROSTAR 601P
Fixed-wing, multi-engine Six Ten Ventures LLC
Grand Prairie, Texas
Standard 2020-08-31 ValidFAA registration status code V: Valid registration. All codes
N708TB Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Connecticut
Standard 2020-08-31 ValidFAA registration status code V: Valid registration. All codes
N14EW Larry New
RV-10
Fixed-wing, single engine N14Ew LLC
New Braunfels, Texas
Experimental 2020-08-25 ValidFAA registration status code V: Valid registration. All codes
N543GT Socata
TB20
Fixed-wing, single engine Pathfinder Aero Services LLC
Sheridan, Wyoming
Standard 2020-08-25 ValidFAA registration status code V: Valid registration. All codes
N2151X Cessna
182T
Fixed-wing, single engine Wcps Aviation LLC
Marietta, Georgia
Standard 2020-08-24 ValidFAA registration status code V: Valid registration. All codes
N182RH Cessna
182T
Fixed-wing, single engine Individual owner
Washington
Standard 2020-08-22 ValidFAA registration status code V: Valid registration. All codes
N3516G Cessna
206H
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2020-08-21 ValidFAA registration status code V: Valid registration. All codes
N81795 Piper
PA-32R-301
Fixed-wing, single engine Flat Land Aviation & Training LLC
Seward, Nebraska
Standard 2020-08-21 ValidFAA registration status code V: Valid registration. All codes
N222GB Smith
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
California
Standard 2020-08-18 ValidFAA registration status code V: Valid registration. All codes
N2173E Cessna
182T
Fixed-wing, single engine Riva LLC
Sioux Falls, South Dakota
Standard 2020-08-15 ValidFAA registration status code V: Valid registration. All codes
N2687L Cessna
182S
Fixed-wing, single engine A R Preston Holdings LLC
Ontario, New York
Standard 2020-08-14 ValidFAA registration status code V: Valid registration. All codes
N453LP Cessna
182S
Fixed-wing, single engine Frsp LLC
Watkins, Colorado
Standard 2020-08-14 ValidFAA registration status code V: Valid registration. All codes
N3844M Piper
PA-32RT-300
Fixed-wing, single engine N3844M LLC
New Canaan, Connecticut
Standard 2020-08-12 ValidFAA registration status code V: Valid registration. All codes
N472BH Piper
AEROSTAR 601P
Fixed-wing, multi-engine Hercules Leasing LLC
Memphis, Tennessee
Standard 2020-08-12 ValidFAA registration status code V: Valid registration. All codes
N251RG Gray Richard D
F1 ROCKET
Fixed-wing, single engine Individual owner
West Virginia
Experimental 2020-08-11 ValidFAA registration status code V: Valid registration. All codes
N8809U Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Doyles AG Services LLC
Two Buttes, Colorado
Restricted 2020-08-11 ValidFAA registration status code V: Valid registration. All codes
N943TT Robinson Helicopter
R44 II
Helicopter Ckz Ventures LLC
Anchorage, Alaska
Standard 2020-08-10 ValidFAA registration status code V: Valid registration. All codes
N2366G Cessna
182S
Fixed-wing, single engine Delaware Aircraft Trust LLC Trustee
New Castle, Delaware
Standard 2020-08-08 ValidFAA registration status code V: Valid registration. All codes
N2103X Piper
PA-32-300
Fixed-wing, single engine Brandon Capital Group INC
Leland, Michigan
Standard 2020-08-07 ValidFAA registration status code V: Valid registration. All codes
N6070C Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Florida
Standard 2020-08-06 ValidFAA registration status code V: Valid registration. All codes
N85LE Maule
M-7-235B
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2020-08-05 ValidFAA registration status code V: Valid registration. All codes
N20126 Cessna
182T
Fixed-wing, single engine Papa Whiskey Enterprises LLC
Merrimack, New Hampshire
Standard 2020-08-01 ValidFAA registration status code V: Valid registration. All codes
N3296B Commander Aircraft Co
114-B
Fixed-wing, single engine Command-Aire LLC
Coatesville, Pennsylvania
Standard 2020-08-01 ValidFAA registration status code V: Valid registration. All codes
N528CW Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Louisiana
Standard 2020-08-01 ValidFAA registration status code V: Valid registration. All codes
N452PW Piper
PA-32R-301
Fixed-wing, single engine Daniella Levi & Associates PC
Fresh Meadows, New York
Standard 2020-07-30 ValidFAA registration status code V: Valid registration. All codes
N74868 Robinson Helicopter
R44 II
Helicopter Sheep Mountain Air LLC
Sutton, Alaska
Standard 2020-07-30 ValidFAA registration status code V: Valid registration. All codes
N6290K Republic
RC-3-1
Fixed-wing, single engine Individual owner
New Mexico
Standard 2020-07-27 ValidFAA registration status code V: Valid registration. All codes
N8087B Piper
PA-32-301
Fixed-wing, single engine Mach Point One LLC
Nashville, Tennessee
Standard 2020-07-24 ValidFAA registration status code V: Valid registration. All codes
N9182Q Piper
PA-32R-301
Fixed-wing, single engine Fox Terrier LLC
Wilmington, Delaware
Standard 2020-07-23 ValidFAA registration status code V: Valid registration. All codes
N2369K Cessna
182S
Fixed-wing, single engine Mgm Aviation LLC
Montara, California
Standard 2020-07-22 ValidFAA registration status code V: Valid registration. All codes
N428S Piper
PA-32-301
Fixed-wing, single engine Griffing Flying Service INC
Port Clinton, Ohio
Standard 2020-07-22 ValidFAA registration status code V: Valid registration. All codes
N442S Britten-Norman
BN-2A-20
Fixed-wing, multi-engine Griffing Flying Service INC
Port Clinton, Ohio
Standard 2020-07-22 ValidFAA registration status code V: Valid registration. All codes
N4212A Piper
PA-32RT-300
Fixed-wing, single engine East West Aviation Club
Duffel,
Standard 2020-07-21 ValidFAA registration status code V: Valid registration. All codes
N144PG Robinson Helicopter
R44 II
Helicopter Csi Flight Services LLC
Mcminnville, Oregon
Standard 2020-07-20 ValidFAA registration status code V: Valid registration. All codes
N39517 Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
North Carolina
Standard 2020-07-13 ValidFAA registration status code V: Valid registration. All codes
N232WT Gardner Marvin
F1 EVO
Fixed-wing, single engine Individual owner
California
Experimental 2020-07-08 ValidFAA registration status code V: Valid registration. All codes
N9224D Aerofab Inc
LAKE 250
Fixed-wing, single engine Alleman Mark J INC
Wilmington, Delaware
Standard 2020-07-08 ValidFAA registration status code V: Valid registration. All codes
N5646M Maule
M-6-235
Fixed-wing, single engine Maule Flight INC
Moultrie, Georgia
Standard 2020-07-06 ValidFAA registration status code V: Valid registration. All codes
N81AV Socata
TB-20 TRINIDAD
Fixed-wing, single engine Shyan INC
Thomasville, North Carolina
Standard 2020-07-06 ValidFAA registration status code V: Valid registration. All codes
N2532M Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Colorado
Standard 2020-07-02 ValidFAA registration status code V: Valid registration. All codes
N3641Y Piper
AEROSTAR 601P
Fixed-wing, multi-engine Victoria Jet Aviation LLC
Victoria, Texas
Standard 2020-06-30 ValidFAA registration status code V: Valid registration. All codes
N4993W Rockwell International
114
Fixed-wing, single engine Individual owner
Kentucky
Standard 2020-06-29 ValidFAA registration status code V: Valid registration. All codes
N625RW Piper
PA-32-301
Fixed-wing, single engine Romeo Whiskey LLC
Lake Havasu City, Arizona
Standard 2020-06-29 ValidFAA registration status code V: Valid registration. All codes
N2158F Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-06-22 ValidFAA registration status code V: Valid registration. All codes
N2367X Cessna
182S
Fixed-wing, single engine 182 Jkp LLC
Fall River, Massachusetts
Standard 2020-06-15 ValidFAA registration status code V: Valid registration. All codes
N571DC Aero Commander
500 S
Fixed-wing, multi-engine Individual owner
Alabama
Standard 2020-06-08 ValidFAA registration status code V: Valid registration. All codes
N114MB Rockwell International
114
Fixed-wing, single engine Individual owner
Connecticut
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N1248E Cessna
182T
Fixed-wing, single engine Individual owner
Arkansas
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N2115K Cessna
182T
Fixed-wing, single engine Individual owner
Louisiana
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N436DE Robinson Helicopter
R44 II
Helicopter Individual owner
Missouri
Standard 2020-06-03 ValidFAA registration status code V: Valid registration. All codes
N345TJ Cessna
182T
Fixed-wing, single engine Opa Flys LLC
Magnolia, Texas
Standard 2020-06-01 ValidFAA registration status code V: Valid registration. All codes
N6095Z Rockwell International
114
Fixed-wing, single engine Coolidge St LLC
Prescott, Arizona
Standard 2020-06-01 ValidFAA registration status code V: Valid registration. All codes
N42NZ Rockwell International
500-S
Fixed-wing, multi-engine CO Fire Aviation Leasing INC
Fort Morgan, Colorado
Standard 2020-05-28 ValidFAA registration status code V: Valid registration. All codes
N54CT Brubaker Calvin
VANS RV-10
Fixed-wing, single engine Individual owner
Utah
Experimental 2020-05-28 ValidFAA registration status code V: Valid registration. All codes
N2921S Piper
PA-32-300
Fixed-wing, single engine Airworthy Services LLC
Pompano Beach, Florida
Standard 2020-05-27 ValidFAA registration status code V: Valid registration. All codes
N74794 Robinson Helicopter
R44 II
Helicopter Individual owner
New York
Standard 2020-05-27 ValidFAA registration status code V: Valid registration. All codes
N31678 Piper
PA-32RT-300
Fixed-wing, single engine Dodson International Parts INC
Rantoul, Kansas
Standard 2020-05-26 ValidFAA registration status code V: Valid registration. All codes
N768F Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Texas
Standard 2020-05-21 ValidFAA registration status code V: Valid registration. All codes
N182AB Cessna
182S
Fixed-wing, single engine Foyhwg INC
Holbrook, New York
Standard 2020-05-20 ValidFAA registration status code V: Valid registration. All codes
N25125 Socata
TB-20 TRINIDAD
Fixed-wing, single engine 1 Ace Distributers INC
Arlington, Washington
Standard 2020-05-20 ValidFAA registration status code V: Valid registration. All codes
N9233Z Piper
PA-32R-301
Fixed-wing, single engine Calmwinds LLC
Middletown, Delaware
Standard 2020-05-20 ValidFAA registration status code V: Valid registration. All codes
N246JK King Jack F
AEROCOMP CM-4 180
Fixed-wing, single engine Individual owner
Nevada
Experimental 2020-05-19 ValidFAA registration status code V: Valid registration. All codes
N47669 Piper
PA-32-300
Fixed-wing, single engine Withheld at owner's request
Standard 2020-05-18 ValidFAA registration status code V: Valid registration. All codes
N118G Maule
M-7-235B
Fixed-wing, single engine Individual owner
Oregon
Standard 2020-05-15 ValidFAA registration status code V: Valid registration. All codes
N4060L Piper
PA-23-250
Fixed-wing, multi-engine Bentley Aviation Services LLC
Lewes, Delaware
Standard 2020-05-15 ValidFAA registration status code V: Valid registration. All codes
N888UU Robinson Helicopter
R44 II
Helicopter Lake Ozark Helicopters INC
Lake Ozark, Missouri
Standard 2020-05-15 ValidFAA registration status code V: Valid registration. All codes
N30602 Piper
PA-28-236
Fixed-wing, single engine Individual owner
Georgia
Standard 2020-05-13 ValidFAA registration status code V: Valid registration. All codes
N8144A Piper
PA-32-300
Fixed-wing, single engine Brickbat Aviation LLC
Little Rock, Arkansas
Standard 2020-05-12 ValidFAA registration status code V: Valid registration. All codes
N95242 Cessna
182S
Fixed-wing, single engine Kane Aviation Holdings LLC
Bernardsville, New Jersey
Standard 2020-05-12 ValidFAA registration status code V: Valid registration. All codes
N88GR Maule
MX-7-235
Fixed-wing, single engine Individual owner
Oregon
Standard 2020-05-08 ValidFAA registration status code V: Valid registration. All codes
N266ME Cessna
182S
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2020-05-06 ValidFAA registration status code V: Valid registration. All codes
N64AZ Piper
PA-23-250
Fixed-wing, multi-engine Alpha Zulu Tailwinds LLC
Fair Oaks, California
Standard 2020-05-06 ValidFAA registration status code V: Valid registration. All codes
N7AM Cessna
182S
Fixed-wing, single engine Co-owned owner
Florida
Standard 2020-05-05 ValidFAA registration status code V: Valid registration. All codes
N5644M Maule
M-6-235
Fixed-wing, single engine Individual owner
Alaska
Standard 2020-05-01 ValidFAA registration status code V: Valid registration. All codes
N5326R Piper
PA-32R-301
Fixed-wing, single engine Higher Milam Aviation LLC
Columbia, Missouri
Standard 2020-04-29 ValidFAA registration status code V: Valid registration. All codes
N5141J Cessna
182T
Fixed-wing, single engine Co-owned owner
California
Standard 2020-04-28 ValidFAA registration status code V: Valid registration. All codes
N54CB Mcclure B J
GLASAIR III
Fixed-wing, single engine Cb Wings LLC
Eugene, Oregon
Experimental 2020-04-27 ValidFAA registration status code V: Valid registration. All codes
N857PD Cessna
182S
Fixed-wing, single engine Co-owned owner
Texas
Standard 2020-04-27 ValidFAA registration status code V: Valid registration. All codes
N1051Z Maule
M-7-235C
Fixed-wing, single engine Individual owner
North Carolina
Standard 2020-04-23 ValidFAA registration status code V: Valid registration. All codes
N2812V Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Nevada
Standard 2020-04-22 ValidFAA registration status code V: Valid registration. All codes
N441DE Robinson Helicopter
R44 II
Helicopter Whirld Helicopters INC
Sevierville, Tennessee
Standard 2020-04-22 ValidFAA registration status code V: Valid registration. All codes
N8412Z Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Virginia
Standard 2020-04-22 ValidFAA registration status code V: Valid registration. All codes
N102MR Maule
M-7-260C
Fixed-wing, single engine Equipment Services CORP
Wahpeton, North Dakota
Standard 2020-04-21 ValidFAA registration status code V: Valid registration. All codes
N8802Y Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Individual owner
South Dakota
Restricted 2020-04-21 ValidFAA registration status code V: Valid registration. All codes
N9293K Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Illinois
Standard 2020-04-21 ValidFAA registration status code V: Valid registration. All codes
N539JB Piper
PA-32-300
Fixed-wing, single engine Individual owner
North Carolina
Standard 2020-04-20 ValidFAA registration status code V: Valid registration. All codes
N5643M Maule
M-5-235C
Fixed-wing, single engine Individual owner
North Dakota
Standard 2020-04-15 ValidFAA registration status code V: Valid registration. All codes
N2147P Piper
PA-32-300
Fixed-wing, single engine Individual owner
Colorado
Standard 2020-04-14 ValidFAA registration status code V: Valid registration. All codes
N211MR Cessna
182S
Fixed-wing, single engine Powerbelt LLC
Glendale, California
Standard 2020-04-09 ValidFAA registration status code V: Valid registration. All codes
N4407B Dehavilland
DHC-1B-2-S3
Fixed-wing, single engine Co-owned owner
California
Experimental 2020-04-08 ValidFAA registration status code V: Valid registration. All codes
Previous Page 21 of 43 Next

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.