The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 9, 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
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
N774LL Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
Louisiana
Standard 2011-05-11 ValidFAA registration status code V: Valid registration. All codes
N127VG Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Georgia
Standard 2011-05-04 ValidFAA registration status code V: Valid registration. All codes
N24376 Cessna
182S
Fixed-wing, single engine C R Transport INC
Wilmington, Delaware
Standard 2011-05-02 ValidFAA registration status code V: Valid registration. All codes
N84235 Piper
PA-32R-301
Fixed-wing, single engine Klj Air LLC
Fairless Hills, Pennsylvania
Standard 2011-05-02 ValidFAA registration status code V: Valid registration. All codes
N7270H Cessna
182S
Fixed-wing, single engine Sundowners INC
Fort Myers, Florida
Standard 2011-04-26 ValidFAA registration status code V: Valid registration. All codes
N249PK Commander Aircraft Co
114-B
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2011-04-18 ValidFAA registration status code V: Valid registration. All codes
N3641B Piper
AEROSTAR 601P
Fixed-wing, multi-engine Unity Aero of Delaware LLC
Dover, Delaware
Standard 2011-04-16 ValidFAA registration status code V: Valid registration. All codes
N61US Cessna
182S
Fixed-wing, single engine Lakes Aviation LLC
Lakewood, Illinois
Standard 2011-04-16 ValidFAA registration status code V: Valid registration. All codes
N8386B Piper
PA-32R-301
Fixed-wing, single engine Sprj Aviation LLC
Tampa, Florida
Standard 2011-04-14 ValidFAA registration status code V: Valid registration. All codes
N104ME Stewart John
VANS RV-10
Fixed-wing, single engine Individual owner
Texas
Experimental 2011-04-12 ValidFAA registration status code V: Valid registration. All codes
N1220R Cessna
182T
Fixed-wing, single engine Keywestaero LLC
Wilmington, Delaware
Standard 2011-04-12 ValidFAA registration status code V: Valid registration. All codes
N442DE Robinson Helicopter
R44 II
Helicopter Glad Air I LLC
Cuyahoga Falls, Ohio
Standard 2011-04-06 ValidFAA registration status code V: Valid registration. All codes
N215TG Watson William P
RV-10
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2011-03-29 ValidFAA registration status code V: Valid registration. All codes
N7526L Robinson Helicopter
R44 II
Helicopter Pcm Aviation LLC
Wilmington, Delaware
Standard 2011-03-18 ValidFAA registration status code V: Valid registration. All codes
N2155H Piper
PA-32-300
Fixed-wing, single engine Individual owner
Mississippi
Standard 2011-02-25 ValidFAA registration status code V: Valid registration. All codes
N9518D Cessna
182S
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2011-02-25 ValidFAA registration status code V: Valid registration. All codes
N8175N Piper
PA-32-301
Fixed-wing, single engine Classical Organs of Texas LLC
Liberty Hill, Texas
Standard 2011-02-24 ValidFAA registration status code V: Valid registration. All codes
N629CG Piper
PA-32-301
Fixed-wing, single engine C-4 Aviation LLC
Fruitland Park, Florida
Standard 2011-02-16 ValidFAA registration status code V: Valid registration. All codes
N6YV Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Florida
Standard 2011-02-10 ValidFAA registration status code V: Valid registration. All codes
N2341Y Piper
PA-36-300
Fixed-wing, single engine Flying G Aviation INC
Drayton, North Dakota
Restricted 2011-02-04 ValidFAA registration status code V: Valid registration. All codes
N8052J Piper
AEROSTAR 601P
Fixed-wing, multi-engine Aviation Systems & Programs II INC
Palm City, Florida
Standard 2011-01-27 ValidFAA registration status code V: Valid registration. All codes
N110HH Highfill Hoyt D
VANS RV10
Fixed-wing, single engine Individual owner
Virginia
Experimental 2011-01-25 ValidFAA registration status code V: Valid registration. All codes
N104GK Piper
PA-32R-300
Fixed-wing, single engine Indigo Bunting Aviation LLC
Morristown, New Jersey
Standard 2011-01-19 ValidFAA registration status code V: Valid registration. All codes
N73FQ Piper
PA-32-301
Fixed-wing, single engine Alaska Island Air INC
Togiak, Alaska
Standard 2011-01-18 ValidFAA registration status code V: Valid registration. All codes
N791S Staudacher Hydroplanes Inc
S-300
Fixed-wing, single engine Individual owner
Washington
Experimental 2011-01-18 ValidFAA registration status code V: Valid registration. All codes
N1016N Cessna
182T
Fixed-wing, single engine Drln Aviation LLC
Charlotte, North Carolina
Standard 2011-01-13 ValidFAA registration status code V: Valid registration. All codes
N540GL Lawler Glenn M
GLASAIR III
Fixed-wing, single engine Edison Scott Industrial LLC
Milan, Michigan
Experimental 2011-01-10 ValidFAA registration status code V: Valid registration. All codes
N705BH Found Acft Canada Inc
FBA-2C1
Fixed-wing, single engine Kingfisher Air INC
Kodiak, Alaska
Standard 2011-01-06 ValidFAA registration status code V: Valid registration. All codes
N13ND Piper
AEROSTAR 600
Fixed-wing, multi-engine Individual owner
Indiana
Standard 2010-12-23 ValidFAA registration status code V: Valid registration. All codes
N9533G Cessna
182S
Fixed-wing, single engine Individual owner
New Jersey
Standard 2010-12-20 ValidFAA registration status code V: Valid registration. All codes
N357HM Cessna
182T
Fixed-wing, single engine H & M Aviation LLC
Madison, Mississippi
Standard 2010-12-15 ValidFAA registration status code V: Valid registration. All codes
N80PE Cessna
182T
Fixed-wing, single engine Lakepoint Aviation LLC
Augusta, Kansas
Standard 2010-12-15 ValidFAA registration status code V: Valid registration. All codes
N23480 Cessna
182S
Fixed-wing, single engine Pkp Aviation LLC
Alexandria, Virginia
Standard 2010-12-10 ValidFAA registration status code V: Valid registration. All codes
N114EE Rockwell International
114
Fixed-wing, single engine Individual owner
North Carolina
Standard 2010-12-01 ValidFAA registration status code V: Valid registration. All codes
N222VW Cessna
182S
Fixed-wing, single engine Cool Beans LLC
Newtown, Pennsylvania
Standard 2010-11-09 ValidFAA registration status code V: Valid registration. All codes
N84BZ Flightpath Inc
LANCAIR LEGACY 2000
Fixed-wing, single engine Individual owner
Arizona
Experimental 2010-11-08 ValidFAA registration status code V: Valid registration. All codes
N854WS Robinson Helicopter
R44 II
Helicopter Mn Helicopters INC
Minneapolis, Minnesota
Standard 2010-10-25 ValidFAA registration status code V: Valid registration. All codes
N298SA Socata
TB-20 TRINIDAD
Fixed-wing, single engine Fb Aviation Services LLC
Wilmington, Delaware
Standard 2010-10-20 ValidFAA registration status code V: Valid registration. All codes
N266BB Cessna
T206H
Fixed-wing, single engine Jk Air LLC
Duncan, Oklahoma
Standard 2010-10-07 ValidFAA registration status code V: Valid registration. All codes
N104AL Dinardi Al
VANS RV-10
Fixed-wing, single engine Co-owned owner
Oregon
Experimental 2010-10-06 ValidFAA registration status code V: Valid registration. All codes
N15242 Cessna
182T
Fixed-wing, single engine Bluclouds LLC
Kirkland, Washington
Standard 2010-09-17 ValidFAA registration status code V: Valid registration. All codes
N5500E Maule
M-7-260C
Fixed-wing, single engine Allen Aviation LLC
Houston, Texas
Standard 2010-09-10 ValidFAA registration status code V: Valid registration. All codes
N2044Y Cessna
182T
Fixed-wing, single engine Psalm 19:1 Aviation LLC
Annapolis, Maryland
Standard 2010-08-27 ValidFAA registration status code V: Valid registration. All codes
N6333R Hunter Ralph M
HUNTER SKYBOLT
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Experimental 2010-08-11 ValidFAA registration status code V: Valid registration. All codes
N8815U Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Individual owner
Montana
Restricted 2010-08-06 ValidFAA registration status code V: Valid registration. All codes
N710MY Robinson Helicopter
R44 II
Helicopter Interstate Helicopters INC
Bethany, Oklahoma
Standard 2010-08-05 ValidFAA registration status code V: Valid registration. All codes
N56517 Maule
M-6-235
Fixed-wing, single engine Individual owner
Alaska
Standard 2010-07-27 ValidFAA registration status code V: Valid registration. All codes
N83089 Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Alabama
Standard 2010-07-20 ValidFAA registration status code V: Valid registration. All codes
N444UH Robinson Helicopter
R44 II
Helicopter Alba Aviation Services INC
Scottsdale, Arizona
Standard 2010-07-19 ValidFAA registration status code V: Valid registration. All codes
N4174A Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Indiana
Standard 2010-07-14 ValidFAA registration status code V: Valid registration. All codes
N511MA Piper
PA-32R-301
Fixed-wing, single engine Rrs Company INC
Midville, Georgia
Standard 2010-07-09 ValidFAA registration status code V: Valid registration. All codes
N719AM Moses A
RV-10
Fixed-wing, single engine Individual owner
Missouri
Experimental 2010-07-01 ValidFAA registration status code V: Valid registration. All codes
N21T Piper
AEROSTAR 601P
Fixed-wing, multi-engine Aerostar Marketing Group LLC
Nicholasville, Kentucky
Standard 2010-06-23 ValidFAA registration status code V: Valid registration. All codes
N6007Z Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
New York
Standard 2010-06-03 ValidFAA registration status code V: Valid registration. All codes
N2516Z Piper
PA-23-250
Fixed-wing, multi-engine Big Sea Enterprises INC
Wilmington, Delaware
Standard 2010-05-25 ValidFAA registration status code V: Valid registration. All codes
N151BJ Johnson Bruce
VANS RV 10
Fixed-wing, single engine Individual owner
Arizona
Experimental 2010-05-21 ValidFAA registration status code V: Valid registration. All codes
N8416K Piper
PA-32R-301
Fixed-wing, single engine 8090 Alpha LLC
Grayslake, Illinois
Standard 2010-05-04 ValidFAA registration status code V: Valid registration. All codes
N77LN Cessna
R182
Fixed-wing, single engine Individual owner
Florida
Standard 2010-05-03 ValidFAA registration status code V: Valid registration. All codes
N38CH Kniebes George C
F1
Fixed-wing, single engine Aacanthus INC
Wilmington, Delaware
Experimental 2010-04-29 ValidFAA registration status code V: Valid registration. All codes
N2808W Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Arizona
Standard 2010-04-27 ValidFAA registration status code V: Valid registration. All codes
N7528Z Robinson Helicopter
R44 II
Helicopter Castor Aviation LTD
Ketchikan, Alaska
Standard 2010-04-27 ValidFAA registration status code V: Valid registration. All codes
N146MW Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Standard 2010-04-23 ValidFAA registration status code V: Valid registration. All codes
N60UP Brietigam Charles T
VANS RV-6
Fixed-wing, single engine Individual owner
Idaho
Experimental 2010-04-13 ValidFAA registration status code V: Valid registration. All codes
N26PB Jenkins/Decker
SH-2R
Fixed-wing, single engine Individual owner
Arizona
Experimental 2010-04-12 ValidFAA registration status code V: Valid registration. All codes
N65664 Cessna
182T
Fixed-wing, single engine Southwest Flying Club INC
The Woodlands, Texas
Standard 2010-04-12 ValidFAA registration status code V: Valid registration. All codes
N555AM Piper
PA-32RT-300
Fixed-wing, single engine Edgewater Ventures LLC
Friday Harbor, Washington
Standard 2010-04-07 ValidFAA registration status code V: Valid registration. All codes
N818AR Cessna
182T
Fixed-wing, single engine Landsworth CORP
Monterey, California
Standard 2010-04-06 ValidFAA registration status code V: Valid registration. All codes
N99FP Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Alabama
Standard 2010-04-01 ValidFAA registration status code V: Valid registration. All codes
N4336D Piper
PA-32-301
Fixed-wing, single engine Wing Flying Club
Lees Summit, Missouri
Standard 2010-03-24 ValidFAA registration status code V: Valid registration. All codes
N6904A Piper
PA-23-250
Fixed-wing, multi-engine Lesser Antilles CORP Trustee
Wilmington, Delaware
Standard 2010-03-08 ValidFAA registration status code V: Valid registration. All codes
N2957R Piper
PA-32-300
Fixed-wing, single engine Bantle Aviation LLC
Midlothian, Virginia
Standard 2010-03-05 ValidFAA registration status code V: Valid registration. All codes
N700AW Maule
M-7-235
Fixed-wing, single engine Tailwheel LLC
Logan, Utah
Standard 2010-03-05 ValidFAA registration status code V: Valid registration. All codes
N61DE Piper
PA-32-300
Fixed-wing, single engine Individual owner
Connecticut
Standard 2010-02-19 ValidFAA registration status code V: Valid registration. All codes
N8032J Piper
AEROSTAR 601
Fixed-wing, multi-engine Mchuard LLC
Wilmington, Delaware
Standard 2010-02-11 ValidFAA registration status code V: Valid registration. All codes
N699CB Cessna
182T
Fixed-wing, single engine Big Skylands Aviation LLC
Succasunna, New Jersey
Standard 2010-02-02 ValidFAA registration status code V: Valid registration. All codes
N1155P Cessna
206H
Fixed-wing, single engine N1155P CORP Trustee
Wilmington, Delaware
Standard 2010-01-08 ValidFAA registration status code V: Valid registration. All codes
N222AY Piper
AEROSTAR 600
Fixed-wing, multi-engine Individual owner
Nevada
Standard 2009-12-29 ValidFAA registration status code V: Valid registration. All codes
N271AF Cessna
182T
Fixed-wing, single engine Burke Aircraft Service CO LLC
Portsmouth, Ohio
Standard 2009-12-28 ValidFAA registration status code V: Valid registration. All codes
N134FS Piper
PA-23-250
Fixed-wing, multi-engine Alcione LLC
Miami, Florida
Standard 2009-12-18 ValidFAA registration status code V: Valid registration. All codes
N76SR Piper
PA-23-250
Fixed-wing, multi-engine Tangipahoa Mosquito Abatement District # 1
Hammond, Louisiana
Experimental 2009-12-14 ValidFAA registration status code V: Valid registration. All codes
N431AF Cessna
182T
Fixed-wing, single engine Buha Holdings LLC
Paris, Texas
Standard 2009-12-09 ValidFAA registration status code V: Valid registration. All codes
N62TB Socata
TB-20 TRINIDAD
Fixed-wing, single engine Six Two Tango Bravo LLC
Port Clinton, Ohio
Standard 2009-12-04 ValidFAA registration status code V: Valid registration. All codes
N629ES Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2009-12-03 ValidFAA registration status code V: Valid registration. All codes
N269WF Maule
M-7-260C
Fixed-wing, single engine Individual owner
Alaska
Standard 2009-11-20 ValidFAA registration status code V: Valid registration. All codes
N9512L Cessna
182S
Fixed-wing, single engine Co-owned owner
Colorado
Standard 2009-11-05 ValidFAA registration status code V: Valid registration. All codes
N301E Dempsey Thomas L
DEMPSEY SX300
Fixed-wing, single engine Individual owner
Iowa
Experimental 2009-10-26 ValidFAA registration status code V: Valid registration. All codes
N3YM Hanson Frederick A
GLASAIR III
Fixed-wing, single engine Individual owner
California
Experimental 2009-10-26 ValidFAA registration status code V: Valid registration. All codes
N75PD Cessna
182S
Fixed-wing, single engine Individual owner
New York
Standard 2009-10-19 ValidFAA registration status code V: Valid registration. All codes
N6345D Cessna
182T
Fixed-wing, single engine Rumble Aviation LLC
Thomasville, Georgia
Standard 2009-10-08 ValidFAA registration status code V: Valid registration. All codes
N680FP Smith
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2009-10-05 ValidFAA registration status code V: Valid registration. All codes
N83KL Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
California
Standard 2009-10-05 ValidFAA registration status code V: Valid registration. All codes
N7895 Siai-Marchetti
F.260
Fixed-wing, single engine Individual owner
Massachusetts
Experimental 2009-09-30 ValidFAA registration status code V: Valid registration. All codes
N28SX Barrett James
CHRISTEN EAGLE II
Fixed-wing, single engine Individual owner
Florida
Experimental 2009-09-22 ValidFAA registration status code V: Valid registration. All codes
N7260Q Cessna
182T
Fixed-wing, single engine Naples Flying Club INC
Naples, Florida
Standard 2009-09-22 ValidFAA registration status code V: Valid registration. All codes
N94AK Piper
PA-32R-301
Fixed-wing, single engine Western Aviation LLC
Bloomfield, Michigan
Standard 2009-09-14 ValidFAA registration status code V: Valid registration. All codes
N478MC Cessna
182T
Fixed-wing, single engine Double Eagle Air LLC
Searcy, Arkansas
Standard 2009-09-09 ValidFAA registration status code V: Valid registration. All codes
N2405S Cessna
182T
Fixed-wing, single engine John L Lyle Aviation LLC
Ridgeland, Mississippi
Standard 2009-09-03 ValidFAA registration status code V: Valid registration. All codes
N911TM Robinson Helicopter
R44 II
Helicopter Executive Helicopters INC
Myrtle Beach, South Carolina
Standard 2009-09-03 ValidFAA registration status code V: Valid registration. All codes

Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), October 9, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.