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
N870PD Cessna
182S
Fixed-wing, single engine Wings Over West Michigan INC
Wyoming, Michigan
Standard 2019-03-13 ValidFAA registration status code V: Valid registration. All codes
N24RW Peters W D Jr/Dwyer K L
GLASAIR III SH-3R
Fixed-wing, single engine Rj Nat Aviation LLC
Port Orange, Florida
Experimental 2019-03-08 ValidFAA registration status code V: Valid registration. All codes
N718QC Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Georgia
Standard 2019-03-07 ValidFAA registration status code V: Valid registration. All codes
N23585 Piper
PA-32R-300
Fixed-wing, single engine Smile By Air LLC
Columbus, Ohio
Standard 2019-03-05 ValidFAA registration status code V: Valid registration. All codes
N4UW Cessna
182S
Fixed-wing, single engine Osterholt Enterprises LLC
Kailua Kona, Hawaii
Special flight permit 2019-03-05 ValidFAA registration status code V: Valid registration. All codes
N260JG Aerotek Inc
PITTS S-2B
Fixed-wing, single engine Sworts Virgilea
Chapmansboro, Tennessee
Standard 2019-03-04 ValidFAA registration status code V: Valid registration. All codes
N879MP Commander Aircraft Co
114TC
Fixed-wing, single engine Triple K & F Flying LLC
Greenwood, Mississippi
Standard 2019-03-04 ValidFAA registration status code V: Valid registration. All codes
N31571 Piper
PA-32-300
Fixed-wing, single engine Cg Air LLC
Mason City, Iowa
Standard 2019-03-02 ValidFAA registration status code V: Valid registration. All codes
N56RG Green Thomas E
ACRODUSTER SA75O
Fixed-wing, single engine Individual owner
New Mexico
Experimental 2019-03-02 ValidFAA registration status code V: Valid registration. All codes
N63398 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Ohio
Standard 2019-03-02 ValidFAA registration status code V: Valid registration. All codes
N814MA Piper
PA32-301FT
Fixed-wing, single engine Holder Airplane LLC
Greenville, South Carolina
Standard 2019-03-02 ValidFAA registration status code V: Valid registration. All codes
N182GH Cessna
182S
Fixed-wing, single engine Troy-Oakland Pilots Flying Club INC
Troy, Michigan
Standard 2019-02-27 ValidFAA registration status code V: Valid registration. All codes
N41GS Piper
AEROSTAR 601P
Fixed-wing, multi-engine Golf Sierra LLC
West Palm Beach, Florida
Standard 2019-02-27 ValidFAA registration status code V: Valid registration. All codes
N5656S Maule
M-7-235
Fixed-wing, single engine Individual owner
Alaska
Standard 2019-02-23 ValidFAA registration status code V: Valid registration. All codes
N65CW Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Texas
Standard 2019-02-23 ValidFAA registration status code V: Valid registration. All codes
N86AT Piper Aircraft Corporation
PA-60-601P
Fixed-wing, multi-engine 86At LLC
Elizabethtown, Pennsylvania
Standard 2019-02-23 ValidFAA registration status code V: Valid registration. All codes
N3001P Piper
PA-32-300
Fixed-wing, single engine N3001P LLC
Aurora, Ohio
Standard 2019-02-22 ValidFAA registration status code V: Valid registration. All codes
N8036D Piper
PA-32R-301
Fixed-wing, single engine N 8036D LLC
Brownsburg, Indiana
Standard 2019-02-22 ValidFAA registration status code V: Valid registration. All codes
N8305L Piper
PA-32-301
Fixed-wing, single engine Pipsara LLC
Jacksonville, Florida
Standard 2019-02-22 ValidFAA registration status code V: Valid registration. All codes
N9214F Maule
M-7-235
Fixed-wing, single engine Maule N889Z INC Trustee
Wilmington, Delaware
Standard 2019-02-21 ValidFAA registration status code V: Valid registration. All codes
N1404P Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Green Rose LLC
Swartz Creek, Michigan
Standard 2019-02-20 ValidFAA registration status code V: Valid registration. All codes
N182LM Cessna
182T
Fixed-wing, single engine Commercial Diving INC
Melbourne, Florida
Standard 2019-02-20 ValidFAA registration status code V: Valid registration. All codes
N104E Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Washington
Standard 2019-02-12 ValidFAA registration status code V: Valid registration. All codes
N128AC Smith
AEROSTAR 601
Fixed-wing, multi-engine Cga Holdings LLC
Kalispell, Montana
Standard 2019-02-12 ValidFAA registration status code V: Valid registration. All codes
N287DP Piper
PA-32RT-300
Fixed-wing, single engine Mag Aviation LLC
Carl Junction, Missouri
Standard 2019-02-11 ValidFAA registration status code V: Valid registration. All codes
N540VL Luker Victor R Jr
GLASAIR III
Fixed-wing, single engine Individual owner
Texas
Experimental 2019-02-11 ValidFAA registration status code V: Valid registration. All codes
N31592 Piper
PA-32RT-300
Fixed-wing, single engine Co-owned owner
Louisiana
Standard 2019-02-05 ValidFAA registration status code V: Valid registration. All codes
N8579P Piper
PA-24-260
Fixed-wing, single engine Wor LLC
Jamaica Beach, Texas
Standard 2019-02-04 ValidFAA registration status code V: Valid registration. All codes
N540LY Herald Micheld D
PITTS S-1-X
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Experimental 2019-02-01 ValidFAA registration status code V: Valid registration. All codes
N2367M Cessna
182S
Fixed-wing, single engine Peterson Aviation LLC
Oregon, Wisconsin
Standard 2019-01-22 ValidFAA registration status code V: Valid registration. All codes
N61385 Maule
M-7-235
Fixed-wing, single engine Individual owner
Missouri
Standard 2019-01-22 ValidFAA registration status code V: Valid registration. All codes
N2380C Cessna
182S
Fixed-wing, single engine H & M Aviation LLC
Calhoun, Georgia
Standard 2019-01-18 ValidFAA registration status code V: Valid registration. All codes
N275DH Howard Henry
BEARHAWK
Fixed-wing, single engine Individual owner
Texas
Experimental 2019-01-18 ValidFAA registration status code V: Valid registration. All codes
N87BR Brim R M/Composite Aero
173/RG-EXL
Fixed-wing, single engine Dredge Forward CORP
Melbourne, Florida
Experimental 2019-01-17 ValidFAA registration status code V: Valid registration. All codes
N9351F Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2019-01-16 ValidFAA registration status code V: Valid registration. All codes
N224EC H Allen Anderson / Philip Mull
RV-10
Fixed-wing, single engine Individual owner
Florida
Experimental 2019-01-14 ValidFAA registration status code V: Valid registration. All codes
N2449A Cessna
182S
Fixed-wing, single engine Westbank Fishing LLC
Kiln, Mississippi
Standard 2019-01-14 ValidFAA registration status code V: Valid registration. All codes
N59EE Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Indiana
Standard 2019-01-09 ValidFAA registration status code V: Valid registration. All codes
N2172G Piper
PA-32-300
Fixed-wing, single engine Second Wind Aviation LLC
Chesapeake, Virginia
Standard 2019-01-08 ValidFAA registration status code V: Valid registration. All codes
N235BG Maule
MT-7-235
Fixed-wing, single engine Individual owner
Washington
Standard 2019-01-08 ValidFAA registration status code V: Valid registration. All codes
N31709 Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Alabama
Standard 2019-01-03 ValidFAA registration status code V: Valid registration. All codes
N621CL Cessna
182S
Fixed-wing, single engine N621Cl LLC
Overland Park, Kansas
Standard 2019-01-02 ValidFAA registration status code V: Valid registration. All codes
N7256Y Cessna
182S
Fixed-wing, single engine Individual owner
Connecticut
Standard 2018-12-27 ValidFAA registration status code V: Valid registration. All codes
N328JM Macy Jack L
STARDUSTER TOO SA300
Fixed-wing, single engine Grand Aviation INC
Grove, Oklahoma
Experimental 2018-12-26 ValidFAA registration status code V: Valid registration. All codes
N6781F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Georgia
Standard 2018-12-18 ValidFAA registration status code V: Valid registration. All codes
N60LF Piper
PA-23-250
Fixed-wing, multi-engine Aztec Air LLC
Little Rock, Arkansas
Standard 2018-12-17 ValidFAA registration status code V: Valid registration. All codes
N5651V Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Florida
Standard 2018-12-10 ValidFAA registration status code V: Valid registration. All codes
N545MC Cessna
182S
Fixed-wing, single engine Co-owned owner
Ohio
Standard 2018-12-07 ValidFAA registration status code V: Valid registration. All codes
N198DP Brooklands Aerospace Grp Plc
OA7 OPTICA
Fixed-wing, single engine Prs Services INC
Spring Hill, Florida
Standard 2018-12-04 ValidFAA registration status code V: Valid registration. All codes
N23407 Cessna
182S
Fixed-wing, single engine S C Skylane LLC
Cumming, Georgia
Standard 2018-12-04 ValidFAA registration status code V: Valid registration. All codes
N2382D Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2018-12-03 ValidFAA registration status code V: Valid registration. All codes
N192TG Cessna
182T
Fixed-wing, single engine Saz Dynamics LLC
Daly City, California
Standard 2018-12-01 ValidFAA registration status code V: Valid registration. All codes
N234ME Cessna
182S
Fixed-wing, single engine Individual owner
Florida
Standard 2018-11-26 ValidFAA registration status code V: Valid registration. All codes
N20GK Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
California
Standard 2018-11-21 ValidFAA registration status code V: Valid registration. All codes
N888WB Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Texas
Standard 2018-11-21 ValidFAA registration status code V: Valid registration. All codes
N832T Maule
M-7-235B
Fixed-wing, single engine Individual owner
Nebraska
Standard 2018-11-20 ValidFAA registration status code V: Valid registration. All codes
N7023Q Piper
AEROSTAR 601P
Fixed-wing, multi-engine Hudson Valley Flight LLC
Wappingers Falls, New York
Standard 2018-11-13 ValidFAA registration status code V: Valid registration. All codes
N710RR Cessna
206H
Fixed-wing, single engine Individual owner
California
Standard 2018-11-08 ValidFAA registration status code V: Valid registration. All codes
N72694 Cessna
182S
Fixed-wing, single engine 16 Sandals LLC
Tuscaloosa, Alabama
Standard 2018-11-07 ValidFAA registration status code V: Valid registration. All codes
N6873C Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
North Carolina
Standard 2018-11-06 ValidFAA registration status code V: Valid registration. All codes
N9239D Piper
PA-32R-301
Fixed-wing, single engine Misson Aviation LLC
Lima, Ohio
Standard 2018-11-05 ValidFAA registration status code V: Valid registration. All codes
N404GA Robinson Helicopter
R44 II
Helicopter Ely AG Services LLC
Sallisaw, Oklahoma
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N54KA Piper
PA-32-300
Fixed-wing, single engine Point To Point Air LLC
Arlington, Washington
Standard 2018-11-03 ValidFAA registration status code V: Valid registration. All codes
N300RJ Piper
PA-32R-300
Fixed-wing, single engine Tcj Kqc LLC
Robstown, Texas
Standard 2018-11-02 ValidFAA registration status code V: Valid registration. All codes
N1709T Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2018-11-01 ValidFAA registration status code V: Valid registration. All codes
N2467C Cessna
182S
Fixed-wing, single engine Ksg Capital LLC
Casper, Wyoming
Standard 2018-10-30 ValidFAA registration status code V: Valid registration. All codes
N924DM Robinson Helicopter
R44
Helicopter Smoketown Helicopters LLC
Smoketown, Pennsylvania
Standard 2018-10-29 ValidFAA registration status code V: Valid registration. All codes
N115CS Piper
PA-32R-301
Fixed-wing, single engine Burger Aviation LLC
Brandon, Mississippi
Standard 2018-10-27 ValidFAA registration status code V: Valid registration. All codes
N84209 Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Co-owned owner
Florida
Standard 2018-10-27 ValidFAA registration status code V: Valid registration. All codes
N6240C Piper
PA-32RT-300
Fixed-wing, single engine N8116J INC
Greenville, North Carolina
Standard 2018-10-26 ValidFAA registration status code V: Valid registration. All codes
N691BA Robinson Helicopter
R44 II
Helicopter Rotor Ops 269 LLC
Wilmington, Delaware
Standard 2018-10-26 ValidFAA registration status code V: Valid registration. All codes
N799J Cessna
182S
Fixed-wing, single engine Co-owned owner
New York
Standard 2018-10-25 ValidFAA registration status code V: Valid registration. All codes
N79MF Piper
PA-23-250
Fixed-wing, multi-engine Skyking Aviation Services LLC
Carson City, Nevada
Standard 2018-10-25 ValidFAA registration status code V: Valid registration. All codes
N3641M Piper
PA-32-300
Fixed-wing, single engine Sweet Water Air LLC
Kissimmee, Florida
Standard 2018-10-24 ValidFAA registration status code V: Valid registration. All codes
N8244V Piper
PA-32-301
Fixed-wing, single engine Individual owner
Kentucky
Standard 2018-10-23 ValidFAA registration status code V: Valid registration. All codes
N848T Piper
PA-32R-301
Fixed-wing, single engine Loggerhead Reef Aviation LLC
Jupiter, Florida
Standard 2018-10-17 ValidFAA registration status code V: Valid registration. All codes
N182VP Cessna
182S
Fixed-wing, single engine Jobsight Delta INC
Sugar Grove, Illinois
Standard 2018-10-15 ValidFAA registration status code V: Valid registration. All codes
N514TF Todd S Fusco
FUSCO BARRACUDA
Fixed-wing, single engine Individual owner
Iowa
Experimental 2018-10-12 ValidFAA registration status code V: Valid registration. All codes
N748C Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Individual owner
Washington
Standard 2018-10-11 ValidFAA registration status code V: Valid registration. All codes
N28PL Robinson Helicopter
R44 II
Helicopter Dragonfly Aviation LLC
Mirando City, Texas
Standard 2018-10-05 ValidFAA registration status code V: Valid registration. All codes
N182DD Cessna
182S
Fixed-wing, single engine Gulf Coast Helicopters INC
Pearland, Texas
Standard 2018-10-04 ValidFAA registration status code V: Valid registration. All codes
N40AS Cessna
182S
Fixed-wing, single engine Schaad Rene
Arroyo Grande, California
Standard 2018-10-02 ValidFAA registration status code V: Valid registration. All codes
N3011X Piper
PA-32-300
Fixed-wing, single engine Hanania-Stout Motorcars LLC
Chattanooga, Tennessee
Standard 2018-09-26 ValidFAA registration status code V: Valid registration. All codes
N796AA Piper
PA-23-250
Fixed-wing, multi-engine Technical Education Services INC
Virginia Beach, Virginia
Standard 2018-09-24 ValidFAA registration status code V: Valid registration. All codes
N1004D Maule
M-7-260
Fixed-wing, single engine Individual owner
Virginia
Standard 2018-09-19 ValidFAA registration status code V: Valid registration. All codes
N2519T Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
California
Standard 2018-09-17 ValidFAA registration status code V: Valid registration. All codes
N9154Y Cessna
182T
Fixed-wing, single engine Individual owner
North Carolina
Standard 2018-09-14 ValidFAA registration status code V: Valid registration. All codes
N139SA Cessna
206H
Fixed-wing, single engine Mississippi Forestry Commission
Pearl, Mississippi
Standard 2018-09-11 ValidFAA registration status code V: Valid registration. All codes
N35184 Cessna
182T
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2018-09-11 ValidFAA registration status code V: Valid registration. All codes
N983SR Piper
PA-32RT-300
Fixed-wing, single engine Co-owned owner
New Jersey
Provisional 2018-09-11 ValidFAA registration status code V: Valid registration. All codes
N260BG Rockwell International
114
Fixed-wing, single engine Individual owner
California
Standard 2018-09-10 ValidFAA registration status code V: Valid registration. All codes
N321TE Found Acft Canada Inc
FBA-2C1
Fixed-wing, single engine Co-owned owner
Wyoming
Standard 2018-09-10 ValidFAA registration status code V: Valid registration. All codes
N9290D Piper
PA-32R-301
Fixed-wing, single engine Individual owner
California
Standard 2018-09-10 ValidFAA registration status code V: Valid registration. All codes
N6898W Piper
PA-60-602P
Fixed-wing, multi-engine Sarah Business LLC
Wilmington, Delaware
Standard 2018-09-08 ValidFAA registration status code V: Valid registration. All codes
N792GW Cessna
182S
Fixed-wing, single engine Smith Brothers Aviation LLC
Bryan, Texas
Standard 2018-08-31 ValidFAA registration status code V: Valid registration. All codes
N32JW John N Wach
GLASAIR III
Fixed-wing, single engine Individual owner
Washington
Experimental 2018-08-30 ValidFAA registration status code V: Valid registration. All codes
N1190D Cessna
182S
Fixed-wing, single engine Cds Enterprise Group LLC
Ionia, Michigan
Standard 2018-08-25 ValidFAA registration status code V: Valid registration. All codes
N2382Y Cessna
182S
Fixed-wing, single engine Barnwater Development INC
Ardmore, Oklahoma
Standard 2018-08-25 ValidFAA registration status code V: Valid registration. All codes
N2957N Piper
PA-32-300
Fixed-wing, single engine Individual owner
California
Standard 2018-08-23 ValidFAA registration status code V: Valid registration. All codes
N8354Q Piper
PA-32-301
Fixed-wing, single engine Kandravi Enterprises INC
Centereach, New York
Standard 2018-08-22 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.