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

Lycoming O-540 series

5,244 aircraft on the U.S. register carry a Lycoming O-540 series engine, rated at about 250 horsepower. The Piper PA-28 Cherokee, Warrior, Archer and Arrow is the model most often fitted with it (1,226 aircraft). The aircraft carrying it were built between 1958 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 O-540 series (2 codes). FAA spellings: 0-540 SERIES · O-540 SERIES.

When the aircraft were built by decade

By decade built, as a table
aircraft
19404
1950428
19601,898
19701,491
1980521
1990132
2000123
20106
202011

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

The design is held under 1 type certificate (E-295, held by Lycoming Engines). The FAA has issued 28 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 304 failure reports with the FAA since 1995, 20 of them in the last ten years.

FAA orders 28 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
2012-10-242012-19-01 · Crankshafts · engine

All orders naming the Lycoming O-540 series

Failure reports 304 since · what operators and shops told the FAA

01530466195000510152025126
Failure reports by year, as a table
reports
9514
9626
975
9811
992
0015
0120
0261
0318
0425
0513
0618
0712
083
094
1011
114
125
136
143
157
161
171
183
194
203
211
223
231
242
251
261

Parts most often reported as the reports name them

Magneto11Light10Carburetor8Line8Clamp7Pin7Valve7Boot6Bulkhead6Hose6
Parts most reported, as a table
reports
Magneto11
Light10
Carburetor8
Line8
Clamp7
Pin7
Valve7
Boot6
Bulkhead6
Hose6

Latest reports

2026-05-09Thrust Button: faulty
2025-06-06Housing: failed
2024-09-25Magneto: making metal
2024-04-02Rod: scored
2023-06-27Solenoid: defective

Certificates and bulletins

E-295Type certificate held by Lycoming Engines · 47 models listed · revised April 30, 2013

Safety bulletins 10 · 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-o-540-series.json.

Aircraft newest certificates first · 5,244

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N8346P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N9076W Piper
PA-28-235
Fixed-wing, single engine Aircraft Holding Solutions Owner Trustee
Newark, Delaware
Standard 2024-08-23 ValidFAA registration status code V: Valid registration. All codes
N6532P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Iowa
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N8200P Piper
PA-24-250
Fixed-wing, single engine Six Five Papa INC
Temple, New Hampshire
Standard 2024-08-21 ValidFAA registration status code V: Valid registration. All codes
N4678P Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Indiana
Standard 2024-08-20 ValidFAA registration status code V: Valid registration. All codes
N6907P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2024-08-18 ValidFAA registration status code V: Valid registration. All codes
N8546W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Michigan
Standard 2024-08-17 ValidFAA registration status code V: Valid registration. All codes
N5772P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2024-08-15 ValidFAA registration status code V: Valid registration. All codes
N739BY Cessna
TR182
Fixed-wing, single engine Co-owned owner
New York
Standard 2024-08-15 ValidFAA registration status code V: Valid registration. All codes
N4812Y Piper
PA-25-235
Fixed-wing, single engine Rc AG Air LLC
Cairo, Missouri
Restricted 2024-08-14 ValidFAA registration status code V: Valid registration. All codes
N3030W Piper
PA-24-250
Fixed-wing, single engine Zadnik Gary R
Vacaville, California
Standard 2024-08-13 ValidFAA registration status code V: Valid registration. All codes
N3284W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Michigan
Standard 2024-08-12 ValidFAA registration status code V: Valid registration. All codes
N39PC Cessna
T182
Fixed-wing, single engine N39Pc LLC
Portsmouth, New Hampshire
Standard 2024-08-12 ValidFAA registration status code V: Valid registration. All codes
N235RS Maule
M-7-235B
Fixed-wing, single engine Flyboy71 LLC
Kalamazoo, Michigan
Standard 2024-08-10 ValidFAA registration status code V: Valid registration. All codes
N6794P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-08-09 ValidFAA registration status code V: Valid registration. All codes
N4803T Cessna
R182
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2024-08-07 ValidFAA registration status code V: Valid registration. All codes
N998MM Piper
PA-32-260
Fixed-wing, single engine Individual owner
North Carolina
Standard 2024-08-07 ValidFAA registration status code V: Valid registration. All codes
N214TJ Cessna
R182
Fixed-wing, single engine Vector Aeromedical Services LLC
Smithfield, North Carolina
Standard 2024-08-06 ValidFAA registration status code V: Valid registration. All codes
N4330R Piper
PA-28-236
Fixed-wing, single engine Individual owner
California
Standard 2024-08-06 ValidFAA registration status code V: Valid registration. All codes
N289GR Aero Commander
500
Fixed-wing, multi-engine Aerocomm LLC
Kalispell, Montana
Standard 2024-08-05 ValidFAA registration status code V: Valid registration. All codes
N5601P Piper
PA-24-250
Fixed-wing, single engine Devil Dusters INC
Artesia, New Mexico
Standard 2024-08-01 ValidFAA registration status code V: Valid registration. All codes
N738WK Cessna
R182
Fixed-wing, single engine Individual owner
Louisiana
Standard 2024-08-01 ValidFAA registration status code V: Valid registration. All codes
N48FH Cessna
R182
Fixed-wing, single engine G-Stf LLC
Midland, Texas
Standard 2024-07-31 ValidFAA registration status code V: Valid registration. All codes
N6244P Piper
PA-24-250
Fixed-wing, single engine Simon Projects LLC
Sebastian, Florida
Standard 2024-07-30 ValidFAA registration status code V: Valid registration. All codes
N44558 Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N5271S Cessna
TR182
Fixed-wing, single engine Withheld at owner's request
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N5966P Piper
PA-24-250
Fixed-wing, single engine Mr Dent INC
Manheim, Pennsylvania
Standard 2024-07-29 ValidFAA registration status code V: Valid registration. All codes
N7685M Cessna
TR182
Fixed-wing, single engine Lazy Double Air LLC
Bloomer, Wisconsin
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N6393P Piper
PA-24-250
Fixed-wing, single engine Individual owner
South Carolina
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N914MG Piper
PA-32-260
Fixed-wing, single engine Individual owner
Georgia
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N9350W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Arizona
Standard 2024-07-25 ValidFAA registration status code V: Valid registration. All codes
N6105S Cessna
R182
Fixed-wing, single engine My Sky LLC
Hays, Kansas
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N8465S Piper
PA-28-236
Fixed-wing, single engine Flyzone LLC
Mount Laurel, New Jersey
Standard 2024-07-24 ValidFAA registration status code V: Valid registration. All codes
N5269S Cessna
R182
Fixed-wing, single engine Canyon Blue LLC
Sharpsburg, Georgia
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N5532S Cessna
TR182
Fixed-wing, single engine Aks Aviation LLC
Arroyo Grande, California
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N739VH Cessna
TR182
Fixed-wing, single engine Individual owner
Wyoming
Standard 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N789CB Walter T Bolan
BEARHAWK MODEL B
Fixed-wing, single engine Individual owner
Oregon
Experimental 2024-07-23 ValidFAA registration status code V: Valid registration. All codes
N321GB Piper
PA-28-235
Fixed-wing, single engine Twisted Roots Aviation LLC
Chesterton, Indiana
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N555VK Cessna
TR182
Fixed-wing, single engine Chet W Fortney LLC
Helena, Montana
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N8094V Piper
PA-28-236
Fixed-wing, single engine Jeppesen LLC
Champlin, Minnesota
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N8123W Piper
PA-28-236
Fixed-wing, single engine Individual owner
South Carolina
Standard 2024-07-22 ValidFAA registration status code V: Valid registration. All codes
N3727W Piper
PA-32-260
Fixed-wing, single engine Triple C Air LLC
Madison, Georgia
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N530TA Cessna
R182
Fixed-wing, single engine Caprock Dairy LLC
Muleshoe, Texas
Standard 2024-07-20 ValidFAA registration status code V: Valid registration. All codes
N56CC Piper
PA-24-250
Fixed-wing, single engine Individual owner
South Carolina
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N7064Z Piper
PA-25-235
Fixed-wing, single engine Individual owner
Minnesota
Restricted 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N72424 Piper
PA-24
Fixed-wing, single engine Co-owned owner
South Carolina
Standard 2024-07-19 ValidFAA registration status code V: Valid registration. All codes
N6254P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2024-07-18 ValidFAA registration status code V: Valid registration. All codes
N728JW Maule
M-7-235B
Fixed-wing, single engine Individual owner
Alaska
Standard 2024-07-17 ValidFAA registration status code V: Valid registration. All codes
N3665W Piper
PA-32-260
Fixed-wing, single engine Individual owner
California
Standard 2024-07-16 ValidFAA registration status code V: Valid registration. All codes
N3936W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-07-16 ValidFAA registration status code V: Valid registration. All codes
N6039P Piper
PA-24-250
Fixed-wing, single engine Procredential LLC
Raleigh, North Carolina
Standard 2024-07-16 ValidFAA registration status code V: Valid registration. All codes
N9013W Piper
PA-28-235
Fixed-wing, single engine Individual owner
North Carolina
Standard 2024-07-16 ValidFAA registration status code V: Valid registration. All codes
N8274X Piper
PA-28-236
Fixed-wing, single engine Co-owned owner
New Hampshire
Standard 2024-07-11 ValidFAA registration status code V: Valid registration. All codes
N9368W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Oregon
Standard 2024-07-11 ValidFAA registration status code V: Valid registration. All codes
N8835W Piper
PA-28-235
Fixed-wing, single engine Individual owner
California
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N9127W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Colorado
Standard 2024-07-10 ValidFAA registration status code V: Valid registration. All codes
N3033W Piper
PA-28-236
Fixed-wing, single engine
Standard 2024-07-08 ValidFAA registration status code V: Valid registration. All codes
N7571T Cessna
R182
Fixed-wing, single engine Individual owner
Oregon
Standard 2024-07-06 ValidFAA registration status code V: Valid registration. All codes
N3696W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Rhode Island
Standard 2024-07-02 ValidFAA registration status code V: Valid registration. All codes
N7103P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2024-07-02 ValidFAA registration status code V: Valid registration. All codes
N5798P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Connecticut
Standard 2024-06-30 ValidFAA registration status code V: Valid registration. All codes
N7883P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 2024-06-30 ValidFAA registration status code V: Valid registration. All codes
N8713W Piper
PA-28-235
Fixed-wing, single engine Tree Star Aviation LLC
Greeneville, Tennessee
Standard 2024-06-30 ValidFAA registration status code V: Valid registration. All codes
N198RR Reagan Ronald R
STEEN SKYBOLT
Fixed-wing, single engine Individual owner
Florida
Experimental 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N8564W Piper
PA-28-235
Fixed-wing, single engine Individual owner
New Jersey
Standard 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N9091C Cessna
R182
Fixed-wing, single engine Individual owner
California
Standard 2024-06-29 ValidFAA registration status code V: Valid registration. All codes
N82RR Rowland Carl Stuart
STARDUSTER SA300
Fixed-wing, single engine Individual owner
Texas
Experimental 2024-06-28 ValidFAA registration status code V: Valid registration. All codes
N756CK Cessna
TR182
Fixed-wing, single engine Individual owner
Wyoming
Multiple 2024-06-27 ValidFAA registration status code V: Valid registration. All codes
N29677 Piper
PA-28-236
Fixed-wing, single engine Anderson Aircraft INC
Central City, Nebraska
Standard 2024-06-26 ValidFAA registration status code V: Valid registration. All codes
N4823P Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N7737J Piper
PA-32-260
Fixed-wing, single engine Vir INC
West Bend, Wisconsin
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N9229W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-24 ValidFAA registration status code V: Valid registration. All codes
N4885S Piper
PA-32-260
Fixed-wing, single engine Em & Rb Aviation Group LLC
Tampa, Florida
Standard 2024-06-23 ValidFAA registration status code V: Valid registration. All codes
N1746R Cessna
R182
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2024-06-20 ValidFAA registration status code V: Valid registration. All codes
N5456P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-20 ValidFAA registration status code V: Valid registration. All codes
N8593W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Utah
Standard 2024-06-20 ValidFAA registration status code V: Valid registration. All codes
N140JG Piper
PA-32-260
Fixed-wing, single engine Individual owner
Florida
Standard 2024-06-16 ValidFAA registration status code V: Valid registration. All codes
N15134 Piper
PA-32-260
Fixed-wing, single engine Individual owner
Florida
Standard 2024-06-16 ValidFAA registration status code V: Valid registration. All codes
N262GG Piper
PA-28-235
Fixed-wing, single engine N262Ggllc LLC
Reno, Nevada
Standard 2024-06-15 ValidFAA registration status code V: Valid registration. All codes
N176WB Piper
PA-32-260
Fixed-wing, single engine Individual owner
Texas
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N29VM Robinson Helicopter
R44
Helicopter Dragonfly Aviation LLC
Laredo, Texas
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N3339W Piper
PA-32-260
Fixed-wing, single engine Wings With the Word
Sanford, Maine
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N738LU Cessna
TR182
Fixed-wing, single engine Urquhart Air LLC
Parker, Colorado
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N7510P Piper
PA-24-250
Fixed-wing, single engine Mavco CORP
Lewes, Delaware
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N77GD Robinson Helicopter
R44
Helicopter N77Gd LLC
Kalispell, Montana
Standard 2024-06-13 ValidFAA registration status code V: Valid registration. All codes
N9434W Piper/Valdes-Ervin
PA-28-235
Fixed-wing, single engine Individual owner
Louisiana
Standard 2024-06-12 ValidFAA registration status code V: Valid registration. All codes
N2297S Cessna
TR182
Fixed-wing, single engine Rocketjet LLC
Incline Village, Nevada
Standard 2024-06-11 ValidFAA registration status code V: Valid registration. All codes
N4808S Piper
PA-32-260
Fixed-wing, single engine Axim Aero LLC
Miami, Florida
Standard 2024-06-11 ValidFAA registration status code V: Valid registration. All codes
N5212T Cessna
R182
Fixed-wing, single engine Cnw Holdings LLC
Wilmington, Delaware
Standard 2024-06-10 ValidFAA registration status code V: Valid registration. All codes
N656DG Cessna
R182
Fixed-wing, single engine D Gordon Aviation INC
La Jolla, California
Standard 2024-06-08 ValidFAA registration status code V: Valid registration. All codes
N4810S Piper
PA-32-260
Fixed-wing, single engine St Somewhere Airlines LLC
Destrehan, Louisiana
Standard 2024-06-07 ValidFAA registration status code V: Valid registration. All codes
N436MR Robinson Helicopter
R44
Helicopter Cedar Ridge Aviation LLC
Knox City, Texas
Restricted 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N6318V Helio
H-250
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N828RD Robinson Helicopter
R44
Helicopter Cedar Ridge Aviation LLC
Knox City, Texas
Standard 2024-06-06 ValidFAA registration status code V: Valid registration. All codes
N8693W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-06-05 ValidFAA registration status code V: Valid registration. All codes
N7362X Cessna
R182
Fixed-wing, single engine Draco Flight School INC
Chino, California
Standard 2024-06-04 ValidFAA registration status code V: Valid registration. All codes
N738TF Cessna
R182
Fixed-wing, single engine Fly Vector LLC
Spring Hill, Florida
Standard 2024-06-03 ValidFAA registration status code V: Valid registration. All codes
N737GD Cessna
R182
Fixed-wing, single engine Efc Aviation LLC
Lancaster, Kentucky
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N838JH Piper
PA-28-235
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2024-06-01 ValidFAA registration status code V: Valid registration. All codes
N1541C Piper
PA-28-235
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2024-05-30 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.