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
N56518 Maule
M-5-235C
Fixed-wing, single engine Cpf Money Processing Systems INC
Spokane, Washington
Standard 2019-07-11 ValidFAA registration status code V: Valid registration. All codes
N6430P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2019-07-11 ValidFAA registration status code V: Valid registration. All codes
N727DS Piper
PA-24-250
Fixed-wing, single engine Yso Noz LLC
Grandville, Michigan
Standard 2019-07-11 ValidFAA registration status code V: Valid registration. All codes
N86MD Maule
M-7-235
Fixed-wing, single engine Lol Splash LLC
Helena, Montana
Standard 2019-07-11 ValidFAA registration status code V: Valid registration. All codes
N3494A Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Missouri
Standard 2019-07-10 ValidFAA registration status code V: Valid registration. All codes
N61XB John G Bickham
BEARHAWK
Fixed-wing, single engine Co-owned owner
New Mexico
Experimental 2019-07-10 ValidFAA registration status code V: Valid registration. All codes
N2915G Piper
PA-28-236
Fixed-wing, single engine Walls Properties LLC
Paragould, Arkansas
Standard 2019-07-09 ValidFAA registration status code V: Valid registration. All codes
N2956C Piper
PA-28-236
Fixed-wing, single engine Flying the Fields LLC
Algonquin, Illinois
Standard 2019-07-08 ValidFAA registration status code V: Valid registration. All codes
N4799S Piper
PA-32-260
Fixed-wing, single engine Individual owner
Mississippi
Standard 2019-07-03 ValidFAA registration status code V: Valid registration. All codes
N7324P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Missouri
Multiple 2019-07-02 ValidFAA registration status code V: Valid registration. All codes
N2198S Cessna
TR182
Fixed-wing, single engine Individual owner
Texas
Standard 2019-07-01 ValidFAA registration status code V: Valid registration. All codes
N8173H Piper
PA-28-236
Fixed-wing, single engine Individual owner
California
Standard 2019-06-28 ValidFAA registration status code V: Valid registration. All codes
N295MA Piper
PA-28-236
Fixed-wing, single engine Individual owner
South Carolina
Standard 2019-06-27 ValidFAA registration status code V: Valid registration. All codes
N4322R Cessna
TR182
Fixed-wing, single engine King Air Charter LLC
Zanesville, Ohio
Standard 2019-06-26 ValidFAA registration status code V: Valid registration. All codes
N5496P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Florida
Standard 2019-06-26 ValidFAA registration status code V: Valid registration. All codes
N4862Y Piper
PA-25-235
Fixed-wing, single engine Individual owner
New Mexico
Restricted 2019-06-25 ValidFAA registration status code V: Valid registration. All codes
N737LM Cessna
TR182
Fixed-wing, single engine Individual owner
Illinois
Standard 2019-06-25 ValidFAA registration status code V: Valid registration. All codes
N5506J Piper
PA-32-260
Fixed-wing, single engine Soaring for Christ LLC
Big Lake, Alaska
Standard 2019-06-24 ValidFAA registration status code V: Valid registration. All codes
N969TA Robinson Helicopter
R44
Helicopter Lola Cattle CO LLC
Rio Grande City, Texas
Standard 2019-06-24 ValidFAA registration status code V: Valid registration. All codes
N471V Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
Florida
Standard 2019-06-21 ValidFAA registration status code V: Valid registration. All codes
N444SF Maule
M-7-235C
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2019-06-20 ValidFAA registration status code V: Valid registration. All codes
N5560J Piper
PA-32-260
Fixed-wing, single engine Sanilac Air LLC
Applegate, Michigan
Standard 2019-06-19 ValidFAA registration status code V: Valid registration. All codes
N2359U Piper
PA-28-236
Fixed-wing, single engine Uden Plumbing & Heating INC
Grand Island, Nebraska
Standard 2019-06-18 ValidFAA registration status code V: Valid registration. All codes
N756VS Cessna
TR182
Fixed-wing, single engine Mystery Air LLC
Walker, Louisiana
Standard 2019-06-18 ValidFAA registration status code V: Valid registration. All codes
N3658W Piper
PA-32-260
Fixed-wing, single engine Flying 20 Club INC
Springfield, Illinois
Standard 2019-06-14 ValidFAA registration status code V: Valid registration. All codes
N3312W Piper
PA-32-260
Fixed-wing, single engine Co-owned owner
Texas
Standard 2019-06-13 ValidFAA registration status code V: Valid registration. All codes
N8090Y Piper
PA-28-236
Fixed-wing, single engine Flyin Gators LLC
New Smyrna Beach, Florida
Standard 2019-06-11 ValidFAA registration status code V: Valid registration. All codes
N7213L Piper
PA-25-235
Fixed-wing, single engine Individual owner
Alabama
Restricted 2019-06-10 ValidFAA registration status code V: Valid registration. All codes
N358BH Zachary Kelley
AVIPRO BEARHAWK
Fixed-wing, single engine Individual owner
Alaska
Experimental 2019-06-06 ValidFAA registration status code V: Valid registration. All codes
N4877S Piper
PA-32-260
Fixed-wing, single engine
Standard 2019-06-06 ValidFAA registration status code V: Valid registration. All codes
N4883S Piper
PA-32-260
Fixed-wing, single engine Individual owner
Ohio
Standard 2019-06-06 ValidFAA registration status code V: Valid registration. All codes
N756NY Cessna
TR182
Fixed-wing, single engine Individual owner
Colorado
Standard 2019-06-05 ValidFAA registration status code V: Valid registration. All codes
N5833P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2019-06-04 ValidFAA registration status code V: Valid registration. All codes
N6641P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Rhode Island
Standard 2019-06-04 ValidFAA registration status code V: Valid registration. All codes
N8589W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Indiana
Standard 2019-06-04 ValidFAA registration status code V: Valid registration. All codes
N235PJ Piper
PA-28-235
Fixed-wing, single engine Individual owner
Connecticut
Standard 2019-06-03 ValidFAA registration status code V: Valid registration. All codes
N5489P Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
California
Standard 2019-06-03 ValidFAA registration status code V: Valid registration. All codes
N3968W Piper
PA-32-260
Fixed-wing, single engine Diamond C Aviation Llcj
Gentry, Arkansas
Standard 2019-05-31 ValidFAA registration status code V: Valid registration. All codes
N9827P Piper
PA-25-235
Fixed-wing, single engine Individual owner
Tennessee
Restricted 2019-05-31 ValidFAA registration status code V: Valid registration. All codes
N3441W Piper
PA-32-260
Fixed-wing, single engine N3441W LLC
Shickley, Nebraska
Standard 2019-05-28 ValidFAA registration status code V: Valid registration. All codes
N9560P Piper
PA-25-235
Fixed-wing, single engine Jetran LLC
Horseshoe Bay, Texas
Standard 2019-05-28 ValidFAA registration status code V: Valid registration. All codes
N9532P Piper
PA-25-260
Fixed-wing, single engine Aerial Banners North INC
Pembroke Pines, Florida
Restricted 2019-05-21 ValidFAA registration status code V: Valid registration. All codes
N8943W Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
California
Standard 2019-05-20 ValidFAA registration status code V: Valid registration. All codes
N110DG Green Richard T
PITTS S-1
Fixed-wing, single engine Individual owner
Ohio
Experimental 2019-05-16 ValidFAA registration status code V: Valid registration. All codes
N250TJ Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2019-05-16 ValidFAA registration status code V: Valid registration. All codes
N5171S Cessna
R182
Fixed-wing, single engine Halsted Holdings LLC
Yankton, South Dakota
Standard 2019-05-16 ValidFAA registration status code V: Valid registration. All codes
N7963P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Idaho
Standard 2019-05-16 ValidFAA registration status code V: Valid registration. All codes
N3022Y Piper
PA-28-236
Fixed-wing, single engine W&M Piper Dakota LLC
Broken Arrow, Oklahoma
Standard 2019-05-15 ValidFAA registration status code V: Valid registration. All codes
N3904W Piper
PA-32-260
Fixed-wing, single engine Eyler Neale
Goddard, Kansas
Standard 2019-05-15 ValidFAA registration status code V: Valid registration. All codes
N3874W Piper
PA-32-260
Fixed-wing, single engine Split Oak Contracting INC
Williamson, Georgia
Standard 2019-05-14 ValidFAA registration status code V: Valid registration. All codes
N6810P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2019-05-10 ValidFAA registration status code V: Valid registration. All codes
N7965P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Nevada
Standard 2019-05-10 ValidFAA registration status code V: Valid registration. All codes
N9083N Piper
PA-28-236
Fixed-wing, single engine Knoxville Flyers INC
Knoxville, Tennessee
Standard 2019-05-07 ValidFAA registration status code V: Valid registration. All codes
N287VC Piper
PA-28-236
Fixed-wing, single engine Great Sky LLC
Brooklyn, New York
Standard 2019-05-06 ValidFAA registration status code V: Valid registration. All codes
N4930P Piper
PA-23-235
Fixed-wing, multi-engine Region Flyers LLC
Valparaiso, Indiana
Standard 2019-05-06 ValidFAA registration status code V: Valid registration. All codes
N8418E Piper
PA-28-236
Fixed-wing, single engine Tri-State Waterstoppers LLC
Ruffs Dale, Pennsylvania
Standard 2019-05-06 ValidFAA registration status code V: Valid registration. All codes
N6656H Cessna
T182
Fixed-wing, single engine Co-owned owner
Florida
Standard 2019-05-02 ValidFAA registration status code V: Valid registration. All codes
N4871R Cessna
TR182
Fixed-wing, single engine Individual owner
Minnesota
Standard 2019-05-01 ValidFAA registration status code V: Valid registration. All codes
N8956W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Indiana
Standard 2019-05-01 ValidFAA registration status code V: Valid registration. All codes
N9131C Cessna
R182
Fixed-wing, single engine Co-owned owner
Alabama
Standard 2019-04-30 ValidFAA registration status code V: Valid registration. All codes
N7732P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 2019-04-29 ValidFAA registration status code V: Valid registration. All codes
N1316N Cox Kevin J
BEARHAWK
Fixed-wing, single engine Individual owner
Idaho
Experimental 2019-04-26 ValidFAA registration status code V: Valid registration. All codes
N4700S Cessna
TR182
Fixed-wing, single engine Giddyup Flyers LLC
Danville, California
Standard 2019-04-24 ValidFAA registration status code V: Valid registration. All codes
N5203P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Illinois
Standard 2019-04-24 ValidFAA registration status code V: Valid registration. All codes
N7619P Piper
PA-24-250
Fixed-wing, single engine First Class Auto Remarketing LLC
Lehigh Acres, Florida
Standard 2019-04-24 ValidFAA registration status code V: Valid registration. All codes
N2957F Piper
PA-28-236
Fixed-wing, single engine Individual owner
Louisiana
Standard 2019-04-23 ValidFAA registration status code V: Valid registration. All codes
N7048C Robinson Helicopter
R44
Helicopter Mn Helicopters INC
Minneapolis, Minnesota
Standard 2019-04-23 ValidFAA registration status code V: Valid registration. All codes
N8107Q Piper
PA-24-250
Fixed-wing, single engine Timpanogos Aviation LLC
Saint George, Utah
Standard 2019-04-23 ValidFAA registration status code V: Valid registration. All codes
N5081Y Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Florida
Standard 2019-04-22 ValidFAA registration status code V: Valid registration. All codes
N6744P Piper
PA-24-250
Fixed-wing, single engine Individual owner
California
Standard 2019-04-22 ValidFAA registration status code V: Valid registration. All codes
N2728D Piper
PA-28-236
Fixed-wing, single engine Osteo Naturals LLC
Belchertown, Massachusetts
Standard 2019-04-19 ValidFAA registration status code V: Valid registration. All codes
N540BC James Beranek
BRUTIS CUB
Fixed-wing, single engine Individual owner
Oregon
Experimental 2019-04-18 ValidFAA registration status code V: Valid registration. All codes
N124HK Cessna
R182
Fixed-wing, single engine David A Desimone LLC
Newnan, Georgia
Standard 2019-04-17 ValidFAA registration status code V: Valid registration. All codes
N3325W Piper
PA-32-260
Fixed-wing, single engine Individual owner
California
Standard 2019-04-17 ValidFAA registration status code V: Valid registration. All codes
N324WC Sebastian Charles J
BEARHAWK 4PL
Fixed-wing, single engine Individual owner
Texas
Experimental 2019-04-15 ValidFAA registration status code V: Valid registration. All codes
N82067 Piper
PA-25-235
Fixed-wing, single engine Individual owner
North Dakota
Restricted 2019-04-15 ValidFAA registration status code V: Valid registration. All codes
N88FB Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 2019-04-15 ValidFAA registration status code V: Valid registration. All codes
N31AZ Cessna
T182
Fixed-wing, single engine Individual owner
California
Standard 2019-04-10 ValidFAA registration status code V: Valid registration. All codes
N9KP Piper
PA-24-250
Fixed-wing, single engine Individual owner
Connecticut
Standard 2019-04-09 ValidFAA registration status code V: Valid registration. All codes
N7827P Piper
PA-24-250
Fixed-wing, single engine Rowan Christopher James
Sparks, Nevada
Standard 2019-04-08 ValidFAA registration status code V: Valid registration. All codes
N90064 Piper
PA-28-235
Fixed-wing, single engine Annville Flight Club INC
Hershey, Pennsylvania
Standard 2019-04-04 ValidFAA registration status code V: Valid registration. All codes
N8664W Piper
PA-28-235
Fixed-wing, single engine Individual owner
Tennessee
Standard 2019-04-03 ValidFAA registration status code V: Valid registration. All codes
N2888G Piper
PA-28-236
Fixed-wing, single engine Individual owner
Colorado
Standard 2019-03-30 ValidFAA registration status code V: Valid registration. All codes
N33850 Piper
PA-28-235
Fixed-wing, single engine Jbm Ventures INC
Apollo Beach, Florida
Standard 2019-03-30 ValidFAA registration status code V: Valid registration. All codes
N5406Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Illinois
Standard 2019-03-25 ValidFAA registration status code V: Valid registration. All codes
N4337Y Piper
PA-25-235
Fixed-wing, single engine Journeys Aviation INC
Boulder, Colorado
Restricted 2019-03-23 ValidFAA registration status code V: Valid registration. All codes
N6857P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Oregon
Standard 2019-03-23 ValidFAA registration status code V: Valid registration. All codes
N8118Q Piper
PA-28-236
Fixed-wing, single engine Dakota Aviation CORP
Sayville, New York
Standard 2019-03-23 ValidFAA registration status code V: Valid registration. All codes
N9743H Cessna
T182
Fixed-wing, single engine Individual owner
Oregon
Standard 2019-03-19 ValidFAA registration status code V: Valid registration. All codes
N221DF Piper
PA-24-250
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2019-03-16 ValidFAA registration status code V: Valid registration. All codes
N235MH Piper
PA-28-235
Fixed-wing, single engine Charlie Papa LLC
Las Vegas, Nevada
Standard 2019-03-16 ValidFAA registration status code V: Valid registration. All codes
N3283W Piper
PA-32-260
Fixed-wing, single engine Individual owner
Alabama
Standard 2019-03-16 ValidFAA registration status code V: Valid registration. All codes
N4904P Piper
PA-23-250
Fixed-wing, multi-engine Civil Air Support LLC
Phoenix, Arizona
Standard 2019-03-15 ValidFAA registration status code V: Valid registration. All codes
N276CK Cessna
R182
Fixed-wing, single engine Co-owned owner
Texas
Standard 2019-03-14 ValidFAA registration status code V: Valid registration. All codes
N5455P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Ohio
Standard 2019-03-13 ValidFAA registration status code V: Valid registration. All codes
N915WM Piper
PA-28-235
Fixed-wing, single engine Individual owner
Alabama
Standard 2019-03-13 ValidFAA registration status code V: Valid registration. All codes
N4837S Piper
PA-32-260
Fixed-wing, single engine Jrf Aircraft LLC
Maple Shade, New Jersey
Standard 2019-03-12 ValidFAA registration status code V: Valid registration. All codes
N306RA S.O.C.A.T.A.
RALLYE 235E
Fixed-wing, single engine Individual owner
Virginia
Standard 2019-03-11 ValidFAA registration status code V: Valid registration. All codes
N5728P Piper
PA-24-250
Fixed-wing, single engine Elite Aviation LLC
Grants Pass, Oregon
Standard 2019-03-11 ValidFAA registration status code V: Valid registration. All codes
N9248W Piper
PA-28-235
Fixed-wing, single engine Co-owned owner
California
Standard 2019-03-11 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.