The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 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
N255AT Cessna
182S
Fixed-wing, single engine Individual owner
Kentucky
Standard 2017-05-30 ValidFAA registration status code V: Valid registration. All codes
N31536 Piper
PA-32-300
Fixed-wing, single engine Island Air Taxi LLC
Put In Bay, Ohio
Standard 2017-05-25 ValidFAA registration status code V: Valid registration. All codes
N44990 Piper
PA-32-300
Fixed-wing, single engine Individual owner
Maryland
Standard 2017-05-25 ValidFAA registration status code V: Valid registration. All codes
N677SW Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Tennessee
Standard 2017-05-25 ValidFAA registration status code V: Valid registration. All codes
N822F Robinson Helicopter
R44 II
Helicopter Hawaii Pacific Aviation INC
Kailua Kona, Hawaii
Standard 2017-05-22 ValidFAA registration status code V: Valid registration. All codes
N8317F Piper
PA-32R-301
Fixed-wing, single engine Luxairways LLC
Old Bethpage, New York
Standard 2017-05-15 ValidFAA registration status code V: Valid registration. All codes
N339ME Cessna
182S
Fixed-wing, single engine Individual owner
Wyoming
Standard 2017-05-11 ValidFAA registration status code V: Valid registration. All codes
N426CT Robinson Helicopter
R44 II
Helicopter Air Kraft Aviation LLC
Timber Lake, South Dakota
Standard 2017-05-11 ValidFAA registration status code V: Valid registration. All codes
N925PT Cessna
182T
Fixed-wing, single engine Puddle Jumper Aviation LLC
Saginaw, Michigan
Standard 2017-05-11 ValidFAA registration status code V: Valid registration. All codes
N14HF Maule
MT-7-235
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 2017-05-10 ValidFAA registration status code V: Valid registration. All codes
N155CP Robinson Helicopter
R44 II
Helicopter Emerald City Aircraft Leasing INC
Port Orchard, Washington
Standard 2017-05-10 ValidFAA registration status code V: Valid registration. All codes
N72614 Cessna
206H
Fixed-wing, single engine Liberty Leasing IV LLC
Melbourne, Florida
Standard 2017-05-10 ValidFAA registration status code V: Valid registration. All codes
N54TD Ackland Jeffrey D
ACKLAND GLSAIR SH-2S
Fixed-wing, single engine G-Loc Fighters LLC
Wilmington, Delaware
Experimental 2017-05-04 ValidFAA registration status code V: Valid registration. All codes
N21AR Socata
TB-20 TRINIDAD
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 2017-05-01 ValidFAA registration status code V: Valid registration. All codes
N103RR Piper
PA-32-300
Fixed-wing, single engine Lancaster Flyers LLC
Fenwick Island, Delaware
Standard 2017-04-26 ValidFAA registration status code V: Valid registration. All codes
N23JV Withrow
STARDUSTER TOO SA300
Fixed-wing, single engine Individual owner
Nevada
Experimental 2017-04-24 ValidFAA registration status code V: Valid registration. All codes
N905RK Albritton Randy L
RA8
Fixed-wing, single engine Individual owner
Washington
Experimental 2017-04-24 ValidFAA registration status code V: Valid registration. All codes
N441DR Robinson Helicopter
R44 II
Helicopter Dakota Rotors LLC
Custer, South Dakota
Standard 2017-04-19 ValidFAA registration status code V: Valid registration. All codes
N6MH Dehavilland
DHC-1B-2
Fixed-wing, single engine Individual owner
Michigan
Experimental 2017-04-17 ValidFAA registration status code V: Valid registration. All codes
N99DB Bliss
STARDUSTER II
Fixed-wing, single engine Individual owner
Florida
Experimental 2017-04-17 ValidFAA registration status code V: Valid registration. All codes
N9919T Piper
PA-32R-301
Fixed-wing, single engine Four M Aviation LLC
Saint Petersburg, Florida
Standard 2017-04-13 ValidFAA registration status code V: Valid registration. All codes
N8050J Cessna
182T
Fixed-wing, single engine Paramus Flying Club INC
Fairfield, New Jersey
Standard 2017-04-03 ValidFAA registration status code V: Valid registration. All codes
N46GA Robinson Helicopter
R44 II
Helicopter Crosswind Leasing LLC
Prescott, Arizona
Standard 2017-03-28 ValidFAA registration status code V: Valid registration. All codes
N877DE Piper
PA32-301FT
Fixed-wing, single engine Ron Cybulski Farms INC
Caro, Michigan
Standard 2017-03-28 ValidFAA registration status code V: Valid registration. All codes
N11GA Robinson Helicopter
R44 II
Helicopter Crosswind Leasing LLC
Prescott, Arizona
Standard 2017-03-27 ValidFAA registration status code V: Valid registration. All codes
N144BZ Robinson Helicopter
R44 II
Helicopter Crosswind Leasing LLC
Prescott, Arizona
Standard 2017-03-27 ValidFAA registration status code V: Valid registration. All codes
N540BK Myers Robert G
BERKUT-HBX
Fixed-wing, single engine Individual owner
Colorado
Experimental 2017-03-27 ValidFAA registration status code V: Valid registration. All codes
N128MB Piper
AEROSTAR 602P
Fixed-wing, multi-engine Co-owned owner
Arizona
Standard 2017-03-15 ValidFAA registration status code V: Valid registration. All codes
N631BW Piper
PA-32-300
Fixed-wing, single engine Individual owner
California
Standard 2017-03-15 ValidFAA registration status code V: Valid registration. All codes
N22ZZ Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
New York
Standard 2017-03-14 ValidFAA registration status code V: Valid registration. All codes
N9783E Bellanca
17-31A
Fixed-wing, single engine Individual owner
Virginia
Standard 2017-03-13 ValidFAA registration status code V: Valid registration. All codes
N11ZA Maule
MX-7-235
Fixed-wing, single engine Ranch Aero LLC
Sterling City, Texas
Standard 2017-03-09 ValidFAA registration status code V: Valid registration. All codes
N865CW Cessna
182T
Fixed-wing, single engine Southern Aviation
Anchorage, Alaska
Standard 2017-03-07 ValidFAA registration status code V: Valid registration. All codes
N9568J Cessna
182S
Fixed-wing, single engine Co-owned owner
Illinois
Standard 2017-03-07 ValidFAA registration status code V: Valid registration. All codes
N6082R Piper
AEROSTAR 601P
Fixed-wing, multi-engine N6082R LLC
Centennial, Colorado
Standard 2017-03-02 ValidFAA registration status code V: Valid registration. All codes
N8367D Beech
J35
Fixed-wing, single engine Ag-Monkey INC
Norris City, Illinois
Standard 2017-03-02 ValidFAA registration status code V: Valid registration. All codes
N32VT Piper
PA-32-300
Fixed-wing, single engine Winging It LLC
Louisville, Kentucky
Standard 2017-03-01 ValidFAA registration status code V: Valid registration. All codes
N8146Y Piper
PA-32R-301
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2017-03-01 ValidFAA registration status code V: Valid registration. All codes
N808ZT Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809EM Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809GT Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809HW Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809KP Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809LN Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809ND Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809PG Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809QJ Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809RH Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809SE Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809TT Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809US Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N809VA Cessna
206H
Fixed-wing, single engine T A F y Consulting
Bristow, Virginia
Standard 2017-02-16 ValidFAA registration status code V: Valid registration. All codes
N2063P Cessna
182T
Fixed-wing, single engine Withheld at owner's request
Standard 2017-02-15 ValidFAA registration status code V: Valid registration. All codes
N5196P Cessna
182T
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2017-02-15 ValidFAA registration status code V: Valid registration. All codes
N800TX Cessna
182S
Fixed-wing, single engine Texan LLC
Bloomington, Indiana
Standard 2017-02-14 ValidFAA registration status code V: Valid registration. All codes
N216JK Cessna
182S
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2017-02-13 ValidFAA registration status code V: Valid registration. All codes
N2966Y Piper
PA-32R-301
Fixed-wing, single engine Piper Holdings LLC
Osage Beach, Missouri
Standard 2017-02-13 ValidFAA registration status code V: Valid registration. All codes
N9277F Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
Texas
Standard 2017-02-13 ValidFAA registration status code V: Valid registration. All codes
N901AP Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2017-02-10 ValidFAA registration status code V: Valid registration. All codes
N165R Piper
PA-32RT-300
Fixed-wing, single engine Txav8R LLC
Houston, Texas
Standard 2017-02-09 ValidFAA registration status code V: Valid registration. All codes
N82965 Piper
PA-32-301
Fixed-wing, single engine Mockingbird Flying Club
Sioux Falls, South Dakota
Standard 2017-02-09 ValidFAA registration status code V: Valid registration. All codes
N144X Nelson James G
F-1 ROCKET
Fixed-wing, single engine Individual owner
California
Experimental 2017-02-01 ValidFAA registration status code V: Valid registration. All codes
N5648D Maule
M-6-235
Fixed-wing, single engine Individual owner
New Jersey
Standard 2017-02-01 ValidFAA registration status code V: Valid registration. All codes
N23TL Cessna
182T
Fixed-wing, single engine Lottman Aviation LLC
Beatrice, Nebraska
Standard 2017-01-31 ValidFAA registration status code V: Valid registration. All codes
N33SX Schumacher Joe P
SWEARINGEN SX-300
Fixed-wing, single engine Individual owner
Texas
Experimental 2017-01-27 ValidFAA registration status code V: Valid registration. All codes
N2534B Batton Robert L
TEAM ROCKET F1
Fixed-wing, single engine Mckane Holdings LLC
West Point, Mississippi
Experimental 2017-01-26 ValidFAA registration status code V: Valid registration. All codes
N3010G Maule
MT-7-235
Fixed-wing, single engine Jerry Slough Aviation LLC
Bakersfield, California
Standard 2017-01-26 ValidFAA registration status code V: Valid registration. All codes
N82255 Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
Florida
Standard 2017-01-26 ValidFAA registration status code V: Valid registration. All codes
N195AJ Piper
PA-32R-301
Fixed-wing, single engine 195Aj LLC
Toledo, Ohio
Standard 2017-01-25 ValidFAA registration status code V: Valid registration. All codes
N269S Cessna
182T
Fixed-wing, single engine Flightco INC
Swainsboro, Georgia
Standard 2017-01-25 ValidFAA registration status code V: Valid registration. All codes
N157RD Cessna
182S
Fixed-wing, single engine Boman & Kemp Lc
Ogden, Utah
Standard 2017-01-17 ValidFAA registration status code V: Valid registration. All codes
N2965A Piper
PA-32-300
Fixed-wing, single engine Pa 32 LLC
Union Center, Wisconsin
Standard 2017-01-17 ValidFAA registration status code V: Valid registration. All codes
N713TB Socata
TB21
Fixed-wing, single engine Individual owner
Nevada
Standard 2017-01-11 ValidFAA registration status code V: Valid registration. All codes
N1132Q Piper
PA-32-300
Fixed-wing, single engine Wattum Investments LLC
Kodiak, Alaska
Standard 2017-01-09 ValidFAA registration status code V: Valid registration. All codes
N63CE Cessna
182S
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2017-01-05 ValidFAA registration status code V: Valid registration. All codes
N314FR Cessna
182S
Fixed-wing, single engine Hawkeye Helicopter LLC
Lyndon, Kansas
Standard 2017-01-04 ValidFAA registration status code V: Valid registration. All codes
N540KY Lewis Norman
RV-8
Fixed-wing, single engine Anikin Aviation INC
Amsterdam, New York
Experimental 2017-01-04 ValidFAA registration status code V: Valid registration. All codes
N61CE Cessna
182S
Fixed-wing, single engine Barr Air Patrol LLC
Mesquite, Texas
Standard 2016-12-29 ValidFAA registration status code V: Valid registration. All codes
N100JG Piper
PA-32R-301
Fixed-wing, single engine Club Cherokee INC
Crystal, Minnesota
Standard 2016-12-27 ValidFAA registration status code V: Valid registration. All codes
N38GV Doug Walechuk
VANS RV-10
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2016-12-27 ValidFAA registration status code V: Valid registration. All codes
N70684 Pabo Kenneth W
HARMON ROCKET II
Fixed-wing, single engine Grb Aviation LLC
Lake Providence, Louisiana
Experimental 2016-12-27 ValidFAA registration status code V: Valid registration. All codes
N725JK Maule
M-5-235C
Fixed-wing, single engine Alkay Flight LLC
Lewes, Delaware
Standard 2016-12-22 ValidFAA registration status code V: Valid registration. All codes
N566LW Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Texas
Standard 2016-12-20 ValidFAA registration status code V: Valid registration. All codes
N196SQ Piper
PA-32R-300
Fixed-wing, single engine Bay Land Aviation INC
Salisbury, Maryland
Standard 2016-12-15 ValidFAA registration status code V: Valid registration. All codes
N6ZR Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
California
Standard 2016-12-12 ValidFAA registration status code V: Valid registration. All codes
N8425T Piper
PA-32R-301
Fixed-wing, single engine N93Lv LLC
Lancaster, Pennsylvania
Standard 2016-12-12 ValidFAA registration status code V: Valid registration. All codes
N235MP Maule
M-7-235B
Fixed-wing, single engine Bushhawk LLC
Queen Creek, Arizona
Standard 2016-12-01 ValidFAA registration status code V: Valid registration. All codes
N823HR Iar Sa Brasov
IAR 823
Fixed-wing, single engine Blue Air Training CORP
Las Vegas, Nevada
Experimental 2016-12-01 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N84EB Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 2016-11-30 ValidFAA registration status code V: Valid registration. All codes
N8296P Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Hawaii
Standard 2016-11-29 ValidFAA registration status code V: Valid registration. All codes
N10PZ Maule
M-7-260C
Fixed-wing, single engine Paxton Aviation INC
Wilmington, Delaware
Standard 2016-11-28 ValidFAA registration status code V: Valid registration. All codes
N275TB Socata
TB-20 TRINIDAD
Fixed-wing, single engine Downwind LLC
Olathe, Kansas
Standard 2016-11-28 ValidFAA registration status code V: Valid registration. All codes
N12EE Cessna
182S
Fixed-wing, single engine Arizona Cloudbusters INC
Mesa, Arizona
Standard 2016-11-21 ValidFAA registration status code V: Valid registration. All codes
N59678 Piper
PA-36-300
Fixed-wing, single engine L&M Decuir INC
Cottonport, Louisiana
Restricted 2016-11-21 ValidFAA registration status code V: Valid registration. All codes
N151ME Cessna
182S
Fixed-wing, single engine Individual owner
Connecticut
Standard 2016-11-18 ValidFAA registration status code V: Valid registration. All codes
N65TK Piper
AEROSTAR 601P
Fixed-wing, multi-engine Really INC
Orange Park, Florida
Standard 2016-11-16 ValidFAA registration status code V: Valid registration. All codes
N4251P Maule
M-7-235C
Fixed-wing, single engine Individual owner
Texas
Standard 2016-11-09 ValidFAA registration status code V: Valid registration. All codes
N240DC Cessna
182T
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2016-11-08 ValidFAA registration status code V: Valid registration. All codes
N40NC Piper
PA-32-301
Fixed-wing, single engine Individual owner
North Carolina
Standard 2016-11-02 ValidFAA registration status code V: Valid registration. All codes
N47423 Piper
PA-32R-300
Fixed-wing, single engine Synergy Wellness Group INC
Bakersfield, California
Standard 2016-10-28 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.