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
N6222P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Arizona
Standard 2022-05-11 ValidFAA registration status code V: Valid registration. All codes
N736NG Cessna
TR182
Fixed-wing, single engine Catcu Aviation LLC
Edinburg, Texas
Standard 2022-05-11 ValidFAA registration status code V: Valid registration. All codes
N2822G Piper
PA-28-236
Fixed-wing, single engine Worsham Investments LLC
Tulsa, Oklahoma
Standard 2022-05-10 ValidFAA registration status code V: Valid registration. All codes
N8095A Piper
PA-28-236
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2022-05-10 ValidFAA registration status code V: Valid registration. All codes
N4770S Piper
PA-32-260
Fixed-wing, single engine Individual owner
Louisiana
Standard 2022-05-07 ValidFAA registration status code V: Valid registration. All codes
N420R Cessna
TR182
Fixed-wing, single engine Individual owner
Texas
Standard 2022-05-04 ValidFAA registration status code V: Valid registration. All codes
N2113G Piper
PA-28-236
Fixed-wing, single engine Individual owner
Nebraska
Standard 2022-05-03 ValidFAA registration status code V: Valid registration. All codes
N8506N Piper
PA-28-235
Fixed-wing, single engine Tiller Aviation LLC
Omaha, Nebraska
Standard 2022-05-02 ValidFAA registration status code V: Valid registration. All codes
N6090P Piper
PA-24-250
Fixed-wing, single engine Basin Franchising LLC
Vernal, Utah
Standard 2022-04-30 ValidFAA registration status code V: Valid registration. All codes
N852VL Piper
PA-32-260
Fixed-wing, single engine Blue Waters Air Charters LLC
San Juan, Puerto Rico
Standard 2022-04-30 ValidFAA registration status code V: Valid registration. All codes
N3797W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Arizona
Standard 2022-04-28 ValidFAA registration status code V: Valid registration. All codes
N6684P Piper
PA-24-250
Fixed-wing, single engine N6684P LLC
Kalispell, Montana
Standard 2022-04-28 ValidFAA registration status code V: Valid registration. All codes
N29070 Cessna
TR182
Fixed-wing, single engine Individual owner
North Dakota
Standard 2022-04-25 ValidFAA registration status code V: Valid registration. All codes
N3553W Piper
PA-32-260
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2022-04-22 ValidFAA registration status code V: Valid registration. All codes
N4743S Cessna
TR182
Fixed-wing, single engine Individual owner
California
Standard 2022-04-20 ValidFAA registration status code V: Valid registration. All codes
N5624P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Colorado
Standard 2022-04-20 ValidFAA registration status code V: Valid registration. All codes
N7104P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
California
Standard 2022-04-20 ValidFAA registration status code V: Valid registration. All codes
N7621P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Vermont
Standard 2022-04-20 ValidFAA registration status code V: Valid registration. All codes
N3626C Cessna
R182
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2022-04-19 ValidFAA registration status code V: Valid registration. All codes
N4727S Piper
PA-32-260
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2022-04-18 ValidFAA registration status code V: Valid registration. All codes
N5302P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Colorado
Standard 2022-04-15 ValidFAA registration status code V: Valid registration. All codes
N8083V Piper
PA-28-236
Fixed-wing, single engine Individual owner
Washington
Standard 2022-04-15 ValidFAA registration status code V: Valid registration. All codes
N3763W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2022-04-09 ValidFAA registration status code V: Valid registration. All codes
N202CT Cessna
R182
Fixed-wing, single engine Individual owner
Texas
Standard 2022-04-06 ValidFAA registration status code V: Valid registration. All codes
N31JW Piper
PA-32-260
Fixed-wing, single engine Individual owner
Texas
Standard 2022-04-06 ValidFAA registration status code V: Valid registration. All codes
N6267H Cessna
T182
Fixed-wing, single engine Northern Wings Aviation LLC
Bozeman, Montana
Standard 2022-04-06 ValidFAA registration status code V: Valid registration. All codes
N4250 Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Wyoming
Standard 2022-04-05 ValidFAA registration status code V: Valid registration. All codes
N8953W Piper
PA-28-235
Fixed-wing, single engine Kinser Aviation LLC
Guthrie, Oklahoma
Standard 2022-04-04 ValidFAA registration status code V: Valid registration. All codes
N5411P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2022-04-02 ValidFAA registration status code V: Valid registration. All codes
N861VL Britten-Norman
BN-2B-26
Fixed-wing, multi-engine Vieques Air Link INC
San Juan, Puerto Rico
Standard 2022-04-01 ValidFAA registration status code V: Valid registration. All codes
N949PW Britten-Norman
BN2A-26 ISLANDER
Fixed-wing, multi-engine Mcphillips Flying Service INC DBA
Beaver Island, Michigan
Standard 2022-04-01 ValidFAA registration status code V: Valid registration. All codes
N6561P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2022-03-31 ValidFAA registration status code V: Valid registration. All codes
N100QB Cessna
R182
Fixed-wing, single engine Co-owned owner
New York
Standard 2022-03-30 ValidFAA registration status code V: Valid registration. All codes
N6697P Piper
PA-24-250
Fixed-wing, single engine Tri County Air Courier LLC
Prosper, Texas
Standard 2022-03-29 ValidFAA registration status code V: Valid registration. All codes
N16363 Piper
PA-28-235
Fixed-wing, single engine Individual owner
Nebraska
Standard 2022-03-28 ValidFAA registration status code V: Valid registration. All codes
N738ER Cessna
TR182
Fixed-wing, single engine J A Brooks LLC
White Lake, Michigan
Standard 2022-03-28 ValidFAA registration status code V: Valid registration. All codes
N44588 Piper
PA-32-260
Fixed-wing, single engine N44588 LLC
Vero Beach, Florida
Standard 2022-03-26 ValidFAA registration status code V: Valid registration. All codes
N921KP Cessna
R182
Fixed-wing, single engine Centurion N709Jm LLC
Minneapolis, Minnesota
Standard 2022-03-26 ValidFAA registration status code V: Valid registration. All codes
N5303P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Virginia
Standard 2022-03-24 ValidFAA registration status code V: Valid registration. All codes
N5725P Piper
PA-24-250
Fixed-wing, single engine Jason Waddell Pllc
Oklahoma City, Oklahoma
Standard 2022-03-23 ValidFAA registration status code V: Valid registration. All codes
N7134P Piper
PA-24-250
Fixed-wing, single engine Hayduk International LLC
Rockhill Furnace, Pennsylvania
Standard 2022-03-23 ValidFAA registration status code V: Valid registration. All codes
N5014S Piper
PA-32-260
Fixed-wing, single engine Co-owned owner
Texas
Standard 2022-03-22 ValidFAA registration status code V: Valid registration. All codes
N56291 Maule
M-5-235C
Fixed-wing, single engine Individual owner
Tennessee
Standard 2022-03-18 ValidFAA registration status code V: Valid registration. All codes
N8331P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
California
Standard 2022-03-18 ValidFAA registration status code V: Valid registration. All codes
N8KL Cessna
TR182
Fixed-wing, single engine Individual owner
Florida
Standard 2022-03-17 ValidFAA registration status code V: Valid registration. All codes
N617CM Piper
PA-28-235
Fixed-wing, single engine Individual owner
Idaho
Standard 2022-03-16 ValidFAA registration status code V: Valid registration. All codes
N8537W Piper
PA-28-235
Fixed-wing, single engine Gone With the Wind LLC
Sturgis, South Dakota
Standard 2022-03-15 ValidFAA registration status code V: Valid registration. All codes
N4386P Piper
PA-28-236
Fixed-wing, single engine Individual owner
Virginia
Standard 2022-03-08 ValidFAA registration status code V: Valid registration. All codes
N4961P Piper
PA-23-235
Fixed-wing, multi-engine Simmons Aviation Services LLC
Pawcatuck, Connecticut
Standard 2022-03-08 ValidFAA registration status code V: Valid registration. All codes
N5097Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2022-03-08 ValidFAA registration status code V: Valid registration. All codes
N9291W Piper
PA-28-235
Fixed-wing, single engine Farleman LLC
Aurora, Ohio
Standard 2022-03-08 ValidFAA registration status code V: Valid registration. All codes
N166NG Piper
PA-32-260
Fixed-wing, single engine Individual owner
South Carolina
Standard 2022-03-05 ValidFAA registration status code V: Valid registration. All codes
N9102W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Florida
Standard 2022-03-04 ValidFAA registration status code V: Valid registration. All codes
N4562Y Piper
PA-25-235
Fixed-wing, single engine Ed Air INC
Oaktown, Indiana
Restricted 2022-03-02 ValidFAA registration status code V: Valid registration. All codes
N7905P Piper
PA-24-250
Fixed-wing, single engine Comanche250 LLC
Sequim, Washington
Standard 2022-02-28 ValidFAA registration status code V: Valid registration. All codes
N5637P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Nebraska
Standard 2022-02-26 ValidFAA registration status code V: Valid registration. All codes
N7953P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Indiana
Standard 2022-02-25 ValidFAA registration status code V: Valid registration. All codes
N8555W Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
Michigan
Standard 2022-02-24 ValidFAA registration status code V: Valid registration. All codes
N8867W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Arizona
Standard 2022-02-23 ValidFAA registration status code V: Valid registration. All codes
N4874S Piper
PA-32-260
Fixed-wing, single engine Shores Financial LLC
Thayer, Illinois
Standard 2022-02-22 ValidFAA registration status code V: Valid registration. All codes
N4757T Cessna
R182
Fixed-wing, single engine Individual owner
Texas
Standard 2022-02-19 ValidFAA registration status code V: Valid registration. All codes
N5524P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2022-02-19 ValidFAA registration status code V: Valid registration. All codes
N518DP Piper
PA-32-260
Fixed-wing, single engine N518Dp LLC
Spruce Pine, North Carolina
Standard 2022-02-18 ValidFAA registration status code V: Valid registration. All codes
N5505P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Florida
Standard 2022-02-18 ValidFAA registration status code V: Valid registration. All codes
N9483W Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
Kansas
Standard 2022-02-17 ValidFAA registration status code V: Valid registration. All codes
N15153 Piper
PA-28-235
Fixed-wing, single engine Individual owner
South Carolina
Standard 2022-02-15 ValidFAA registration status code V: Valid registration. All codes
N6030P Piper
PA-24-250
Fixed-wing, single engine Angel Aviation LLC
Paradise, Kansas
Standard 2022-02-15 ValidFAA registration status code V: Valid registration. All codes
N8577W Piper
PA-28-235
Fixed-wing, single engine M97West LLC
Fargo, North Dakota
Standard 2022-02-12 ValidFAA registration status code V: Valid registration. All codes
N7272P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2022-02-05 ValidFAA registration status code V: Valid registration. All codes
N5228P Piper
PA-24-250
Fixed-wing, single engine Ftf Group LLC
Galt, California
Standard 2022-02-04 ValidFAA registration status code V: Valid registration. All codes
N5207P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Colorado
Standard 2022-02-03 ValidFAA registration status code V: Valid registration. All codes
N56965 Piper
PA-28-235
Fixed-wing, single engine Brazos River Aviation LLC
Plainview, Texas
Standard 2022-02-01 ValidFAA registration status code V: Valid registration. All codes
N235DE Stinson
108-3
Fixed-wing, single engine Acro Aviation LLC
Littleton, Colorado
Standard 2022-01-29 ValidFAA registration status code V: Valid registration. All codes
N40758 Piper
PA-32-260
Fixed-wing, single engine Charlie Six LLC
Mesa, Arizona
Standard 2022-01-28 ValidFAA registration status code V: Valid registration. All codes
N7977B Piper
PA-32-260
Fixed-wing, single engine G&M Aircraft INC
Wheat Ridge, Colorado
Standard 2022-01-28 ValidFAA registration status code V: Valid registration. All codes
N9131W Piper
PA-28-235
Fixed-wing, single engine Individual owner
California
Standard 2022-01-28 ValidFAA registration status code V: Valid registration. All codes
N9280W Piper
PA-28-235
Fixed-wing, single engine Whiskey Charlie Aviation LLC
Reno, Nevada
Standard 2022-01-28 ValidFAA registration status code V: Valid registration. All codes
N3672C Cessna
R182
Fixed-wing, single engine Individual owner
North Carolina
Standard 2022-01-27 ValidFAA registration status code V: Valid registration. All codes
N7150S Cessna
R182
Fixed-wing, single engine Gabrial Aviation LLC
New Berlin, Wisconsin
Standard 2022-01-26 ValidFAA registration status code V: Valid registration. All codes
N188BB Maule
M-7-260C
Fixed-wing, single engine Boening Bros Dairy INC
Floresville, Texas
Standard 2022-01-25 ValidFAA registration status code V: Valid registration. All codes
N6124T Cessna
R182
Fixed-wing, single engine Banjo Ben Aviation LLC
Kilgore, Texas
Standard 2022-01-24 ValidFAA registration status code V: Valid registration. All codes
N7697Z Piper
PA-25-235
Fixed-wing, single engine Tri-State Aerial LLC
Canton, South Dakota
Restricted 2022-01-24 ValidFAA registration status code V: Valid registration. All codes
N8616W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Washington
Standard 2022-01-24 ValidFAA registration status code V: Valid registration. All codes
N9253R Cessna
TR182
Fixed-wing, single engine Dr Equipment LLC
Ackerly, Texas
Standard 2022-01-24 ValidFAA registration status code V: Valid registration. All codes
N13RG Piper
PA-28-235
Fixed-wing, single engine Island Piper LLP
St Helena Is, South Carolina
Standard 2022-01-20 ValidFAA registration status code V: Valid registration. All codes
N6505P Piper
PA-24-250
Fixed-wing, single engine Caduda & Faulk Aero LTD
Nederland, Colorado
Standard 2022-01-15 ValidFAA registration status code V: Valid registration. All codes
N6207P Piper
PA-24-250
Fixed-wing, single engine Squawk 2310 LLC
Ridgefield, Washington
Standard 2022-01-13 ValidFAA registration status code V: Valid registration. All codes
N9271R Cessna
R182
Fixed-wing, single engine Upwind Aviation LLC
Mitchell, South Dakota
Standard 2022-01-13 ValidFAA registration status code V: Valid registration. All codes
N3564N Piper
PA-32R-301
Fixed-wing, single engine Abbott Aircraft Sales and Service LLC
Holts Summit, Missouri
Standard 2022-01-12 ValidFAA registration status code V: Valid registration. All codes
N8373P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Nevada
Standard 2022-01-12 ValidFAA registration status code V: Valid registration. All codes
N5630P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2022-01-11 ValidFAA registration status code V: Valid registration. All codes
N9258W Piper
PA-28-235
Fixed-wing, single engine M and T Aviation LLC
Hampstead, Maryland
Standard 2022-01-11 ValidFAA registration status code V: Valid registration. All codes
N3907W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Texas
Standard 2022-01-08 ValidFAA registration status code V: Valid registration. All codes
N5804P Piper
PA-24-250
Fixed-wing, single engine Witt Aviation LLC
Naperville, Illinois
Standard 2022-01-08 ValidFAA registration status code V: Valid registration. All codes
N8995W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Florida
Standard 2022-01-08 ValidFAA registration status code V: Valid registration. All codes
N4490Y Piper
PA-25-235
Fixed-wing, single engine Minnesota Soaring Club INC
Stanton, Minnesota
Standard 2022-01-07 ValidFAA registration status code V: Valid registration. All codes
N9419W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2022-01-07 ValidFAA registration status code V: Valid registration. All codes
N236AB Piper
PA-28-236
Fixed-wing, single engine Individual owner
New Hampshire
Standard 2022-01-06 ValidFAA registration status code V: Valid registration. All codes
N907VL Britten-Norman
BN-2A-9
Fixed-wing, multi-engine Blue Waters Air Charters LLC
San Juan, Puerto Rico
Standard 2022-01-03 ValidFAA registration status code V: Valid registration. All codes
N9077W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Virginia
Standard 2021-12-29 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.