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
N739CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-05-10 ValidFAA registration status code V: Valid registration. All codes
N740CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-05-10 ValidFAA registration status code V: Valid registration. All codes
N14ML Lardner Martin E
BARRACUDA
Fixed-wing, single engine Individual owner
Maryland
Experimental 2006-05-02 ValidFAA registration status code V: Valid registration. All codes
N7274Q Cessna
182S
Fixed-wing, single engine Co-owned owner
Virginia
Standard 2006-04-20 ValidFAA registration status code V: Valid registration. All codes
N300SX Spencer Scott
SX300
Fixed-wing, single engine Individual owner
Utah
Experimental 2006-04-18 ValidFAA registration status code V: Valid registration. All codes
N54GD Ruschke Gerald J
RUSCHKE ROCKET
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2006-04-18 ValidFAA registration status code V: Valid registration. All codes
N366ME Cessna
182S
Fixed-wing, single engine Three Six Six Mike Echo LLC
Mantua, Utah
Standard 2006-04-14 ValidFAA registration status code V: Valid registration. All codes
N74637 Robinson Helicopter
R44 II
Helicopter Equipment Leasing & Rental INC
Wilmington, North Carolina
Standard 2006-04-14 ValidFAA registration status code V: Valid registration. All codes
N904WR Piper
PA-32R-300
Fixed-wing, single engine Rhr Equipment Leasing LLC
Alpharetta, Georgia
Standard 2006-04-06 ValidFAA registration status code V: Valid registration. All codes
N202WC Maule
MT-7-235
Fixed-wing, single engine Individual owner
California
Standard 2006-03-24 ValidFAA registration status code V: Valid registration. All codes
N74807 Robinson Helicopter
R44 II
Helicopter Flying Fezent LLC
Almont, Michigan
Standard 2006-03-03 ValidFAA registration status code V: Valid registration. All codes
N9VX Maule
M-7-235C
Fixed-wing, single engine Individual owner
Florida
Standard 2006-03-03 ValidFAA registration status code V: Valid registration. All codes
N24JH Dehavilland
DHC-1B-2
Fixed-wing, single engine Individual owner
Washington
Experimental 2006-02-17 ValidFAA registration status code V: Valid registration. All codes
N4304W Piper
PA-32-301
Fixed-wing, single engine Individual owner
Maryland
Standard 2006-02-16 ValidFAA registration status code V: Valid registration. All codes
N500WC Piper
PA32-301FT
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2006-02-08 ValidFAA registration status code V: Valid registration. All codes
N2348S Cessna
182S
Fixed-wing, single engine Georgia Forestry Commission
Macon, Georgia
Standard 2006-02-07 ValidFAA registration status code V: Valid registration. All codes
N2462P Cessna
182T
Fixed-wing, single engine San Diego Aviation LLC
San Diego, California
Standard 2006-02-01 ValidFAA registration status code V: Valid registration. All codes
N716CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-31 ValidFAA registration status code V: Valid registration. All codes
N702CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N709CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N710CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N715CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N718CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N719CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2006-01-25 ValidFAA registration status code V: Valid registration. All codes
N4225N Cessna
182S
Fixed-wing, single engine Ry Cor LLC
Stevens Point, Wisconsin
Standard 2006-01-13 ValidFAA registration status code V: Valid registration. All codes
N4274Y Maule
M-7-235C
Fixed-wing, single engine Individual owner
California
Standard 2006-01-11 ValidFAA registration status code V: Valid registration. All codes
N305DK Cessna
206H
Fixed-wing, single engine Washington State Patrol
Olympia, Washington
Standard 2006-01-10 ValidFAA registration status code V: Valid registration. All codes
N17572 Cessna
182T
Fixed-wing, single engine Valencia Technical Consulting LLC
Gig Harbor, Washington
Standard 2006-01-09 ValidFAA registration status code V: Valid registration. All codes
N4174C Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
California
Standard 2006-01-05 ValidFAA registration status code V: Valid registration. All codes
N514HP Cessna
182T
Fixed-wing, single engine State of Ohio / Department of Public Safety
Columbus, Ohio
Standard 2005-12-20 ValidFAA registration status code V: Valid registration. All codes
N20416 Cessna
182T
Fixed-wing, single engine Carl L Mccallister INC
Wilmington, Delaware
Standard 2005-12-14 ValidFAA registration status code V: Valid registration. All codes
N9128W Piper
PA-32R-301
Fixed-wing, single engine Boiler Express LLC
Gouldsboro, Pennsylvania
Standard 2005-12-13 ValidFAA registration status code V: Valid registration. All codes
N39539 Piper
PA-32RT-300
Fixed-wing, single engine Sandia Aviation Services LLC
Albuquerque, New Mexico
Standard 2005-12-08 ValidFAA registration status code V: Valid registration. All codes
N92610 Piper
PA-32R-301
Fixed-wing, single engine Adventure Flight Aviation INC
Springdale, Arkansas
Standard 2005-12-08 ValidFAA registration status code V: Valid registration. All codes
N655CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-11-28 ValidFAA registration status code V: Valid registration. All codes
N656CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-11-28 ValidFAA registration status code V: Valid registration. All codes
N657CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-11-28 ValidFAA registration status code V: Valid registration. All codes
N26CX Piper
PA-24-260
Fixed-wing, single engine Individual owner
Kansas
Standard 2005-11-21 ValidFAA registration status code V: Valid registration. All codes
N884M Manning Michael
HARMON ROCKET
Fixed-wing, single engine Individual owner
California
Experimental 2005-11-14 ValidFAA registration status code V: Valid registration. All codes
N8979P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Nebraska
Standard 2005-10-26 ValidFAA registration status code V: Valid registration. All codes
N4TZ Cumberland/Cumberland
SKYBOLT
Fixed-wing, single engine Individual owner
Virginia
Experimental 2005-10-25 ValidFAA registration status code V: Valid registration. All codes
N8800W Eagle Aircraft Co.-Bellanca
EAGLE DW-1
Fixed-wing, single engine Eagle LLC
Sleepy Eye, Minnesota
Experimental 2005-10-24 ValidFAA registration status code V: Valid registration. All codes
N243Y Shilt Jerry C
GLASAIR III
Fixed-wing, single engine Shilt Jerry C
El Dorado Springs, Missouri
Experimental 2005-10-11 ValidFAA registration status code V: Valid registration. All codes
N22044 Cessna
182T
Fixed-wing, single engine 182 Flight CORP
Bronx, New York
Special flight permit 2005-10-04 ValidFAA registration status code V: Valid registration. All codes
N517KB Corkins W J/Corkins K A
GLASAIR III
Fixed-wing, single engine Co-owned owner
Florida
Experimental 2005-10-04 ValidFAA registration status code V: Valid registration. All codes
N9165N Piper
PA-32R-301
Fixed-wing, single engine Jrh LLC
Indianapolis, Indiana
Standard 2005-09-21 ValidFAA registration status code V: Valid registration. All codes
N1053B Cessna
182T
Fixed-wing, single engine Loveland INC
Vance, Mississippi
Standard 2005-09-16 ValidFAA registration status code V: Valid registration. All codes
N890DF Piper
PA-32-300
Fixed-wing, single engine Marine Investments LLP
Morganton, North Carolina
Standard 2005-09-12 ValidFAA registration status code V: Valid registration. All codes
N23735 Cessna
182S
Fixed-wing, single engine Leighton Farms LTD
Griswold, Iowa
Standard 2005-09-09 ValidFAA registration status code V: Valid registration. All codes
N339SA Cessna
182S
Fixed-wing, single engine Big River Farms INC
Natchez, Mississippi
Standard 2005-09-09 ValidFAA registration status code V: Valid registration. All codes
N68DS Cessna
182S
Fixed-wing, single engine Co-owned owner
New Jersey
Standard 2005-09-07 ValidFAA registration status code V: Valid registration. All codes
N74BM Smith
AEROSTAR 601P
Fixed-wing, multi-engine Alexander City Aviation CORP
Alexander City, Alabama
Standard 2005-09-02 ValidFAA registration status code V: Valid registration. All codes
N2446X Cessna
206H
Fixed-wing, single engine Washington State Patrol
Olympia, Washington
Standard 2005-08-23 ValidFAA registration status code V: Valid registration. All codes
N771CB Rockwell International
114
Fixed-wing, single engine Skycruise INC
Largo, Florida
Standard 2005-08-11 ValidFAA registration status code V: Valid registration. All codes
N3039S Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
California
Standard 2005-08-10 ValidFAA registration status code V: Valid registration. All codes
N943G Maule
M-7-260C
Fixed-wing, single engine Individual owner
California
Standard 2005-08-08 ValidFAA registration status code V: Valid registration. All codes
N2989M Piper
PA-32-300
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2005-07-28 ValidFAA registration status code V: Valid registration. All codes
N72559 Cessna
182S
Fixed-wing, single engine Individual owner
Florida
Standard 2005-07-28 ValidFAA registration status code V: Valid registration. All codes
N716HP Cessna
182T
Fixed-wing, single engine State of Ohio
Columbus, Ohio
Standard 2005-07-19 ValidFAA registration status code V: Valid registration. All codes
N298DB Cessna
182T
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2005-07-18 ValidFAA registration status code V: Valid registration. All codes
N833SA Cessna
182T
Fixed-wing, single engine Individual owner
Florida
Standard 2005-06-29 ValidFAA registration status code V: Valid registration. All codes
N75LL Davis/Wheeler Express
F-FT-1S
Fixed-wing, single engine Davis Air LLC
Phoenix, Arizona
Experimental 2005-06-21 ValidFAA registration status code V: Valid registration. All codes
N20TL Socata
TB-20 TRINIDAD
Fixed-wing, single engine N20Tl LLC
Incline Village, Nevada
Standard 2005-06-20 ValidFAA registration status code V: Valid registration. All codes
N50PW Piper
PA-32RT-300
Fixed-wing, single engine Handi Corner INC
Sandersville, Georgia
Standard 2005-06-16 ValidFAA registration status code V: Valid registration. All codes
N114CE Commander Aircraft Co
114-B
Fixed-wing, single engine Commander Air LLC
Purcellville, Virginia
Standard 2005-06-15 ValidFAA registration status code V: Valid registration. All codes
N727VT Cessna
182S
Fixed-wing, single engine Co-owned owner
California
Standard 2005-06-15 ValidFAA registration status code V: Valid registration. All codes
N5MF Frey
TIGER BIRD F-1
Fixed-wing, single engine Individual owner
Texas
Experimental 2005-06-09 ValidFAA registration status code V: Valid registration. All codes
N72798 Cessna
182T
Fixed-wing, single engine Skylane 72798 LLC
Winston Salem, North Carolina
Standard 2005-06-06 ValidFAA registration status code V: Valid registration. All codes
N1XC Dehavilland
DHC-1B-2
Fixed-wing, single engine Tarheel Aeroplanes LLC
Macclesfield, North Carolina
Experimental 2005-05-19 ValidFAA registration status code V: Valid registration. All codes
N427DT Robinson Helicopter
R44 II
Helicopter Eagle Eye Helicopter LLC
Fort Pierce, Florida
Standard 2005-05-18 ValidFAA registration status code V: Valid registration. All codes
N206CP Cessna
206H
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-09 ValidFAA registration status code V: Valid registration. All codes
N359CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-09 ValidFAA registration status code V: Valid registration. All codes
N639CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-09 ValidFAA registration status code V: Valid registration. All codes
N351CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N357BC Cessna
182S
Fixed-wing, single engine Individual owner
Florida
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N405RR Robinson Helicopter
R44 II
Helicopter Bjp Aviation LLC
Seattle, Washington
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N632CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N633CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N634CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N635CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N636CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N637CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N638CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N83MH Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2005-05-04 ValidFAA registration status code V: Valid registration. All codes
N5671G Maule
M-5-235C
Fixed-wing, single engine Montana Wingnuts LLC
Kalispell, Montana
Standard 2005-05-02 ValidFAA registration status code V: Valid registration. All codes
N58UP Robinson Helicopter
R44 II
Helicopter Our 44 INC
Corralitos, California
Standard 2005-05-02 ValidFAA registration status code V: Valid registration. All codes
N557HR Johnston Philip
HARMON ROCKET II
Fixed-wing, single engine Individual owner
California
Experimental 2005-04-29 ValidFAA registration status code V: Valid registration. All codes
N183SB Barnes Steve
BARNES STORMER
Fixed-wing, single engine Individual owner
California
Experimental 2005-04-20 ValidFAA registration status code V: Valid registration. All codes
N355CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-19 ValidFAA registration status code V: Valid registration. All codes
N356CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-19 ValidFAA registration status code V: Valid registration. All codes
N357CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-19 ValidFAA registration status code V: Valid registration. All codes
N352CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N358CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N360CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N631CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N640CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Maxwell Afb, Alabama
Standard 2005-04-18 ValidFAA registration status code V: Valid registration. All codes
N161BW Robinson Helicopter
R44 II
Helicopter Individual owner
Illinois
Standard 2005-04-04 ValidFAA registration status code V: Valid registration. All codes
N26NA Gippsland
GA-8
Fixed-wing, single engine Natron Air INC
Soldotna, Alaska
Standard 2005-04-04 ValidFAA registration status code V: Valid registration. All codes
N199CA Cessna
182T
Fixed-wing, single engine Capital Holdings 109 LLC
Potomac, Maryland
Standard 2005-03-31 ValidFAA registration status code V: Valid registration. All codes
N353CP Cessna
182T
Fixed-wing, single engine Civil Air Patrol
Montgomery, Alabama
Standard 2005-03-30 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.