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
N31699 Piper
PA-32-300
Fixed-wing, single engine Donahue Investments LLC
Port Orange, Florida
Standard 2019-09-23 ValidFAA registration status code V: Valid registration. All codes
N7256Q Cessna
182S
Fixed-wing, single engine Co-owned owner
Louisiana
Standard 2019-09-23 ValidFAA registration status code V: Valid registration. All codes
N2102S Piper
PA-32RT-300
Fixed-wing, single engine Jericho Air LLC
Hilton Head Island, South Carolina
Standard 2019-09-17 ValidFAA registration status code V: Valid registration. All codes
N330SM Wingtip To Wingtip Llc
PANZL S-330
Fixed-wing, single engine SA Aerosports LLC
Kalispell, Montana
Experimental 2019-09-12 ValidFAA registration status code V: Valid registration. All codes
N3075C Maule
M-7-235A
Fixed-wing, single engine Individual owner
California
Experimental 2019-09-11 ValidFAA registration status code V: Valid registration. All codes
N680S Piper
AEROSTAR 601P
Fixed-wing, multi-engine Qualitair LLC Trustee
Michelstadt,
Standard 2019-09-11 ValidFAA registration status code V: Valid registration. All codes
N142LL Martin Tom
HARMON ROCKET II
Fixed-wing, single engine Hr II LLC
Prescott, Arizona
Experimental 2019-09-09 ValidFAA registration status code V: Valid registration. All codes
N117CS Piper
PA-32R-301
Fixed-wing, single engine Sam Airlines LLC
Wilmington, Delaware
Standard 2019-09-06 ValidFAA registration status code V: Valid registration. All codes
N426CU Justin S Miller/Gary J Grommon
TOXIC S-1-11
Fixed-wing, single engine Co-owned owner
Iowa
Experimental 2019-09-06 ValidFAA registration status code V: Valid registration. All codes
N6520C Piper
PA-32RT-300
Fixed-wing, single engine Vail Communications INC
Orangevale, California
Standard 2019-09-05 ValidFAA registration status code V: Valid registration. All codes
N628FN Cessna
182S
Fixed-wing, single engine Flying Neutrons LLC
Lebanon, Ohio
Standard 2019-09-04 ValidFAA registration status code V: Valid registration. All codes
N8934P Piper
PA-24-260
Fixed-wing, single engine Nermernuh LLC
Chester, Connecticut
Standard 2019-08-29 ValidFAA registration status code V: Valid registration. All codes
N965JB Piper
PA-32R-301
Fixed-wing, single engine Keevair LLC
Rockaway, New Jersey
Standard 2019-08-27 ValidFAA registration status code V: Valid registration. All codes
N27001 Brooks Sloan
GLASAIR III
Fixed-wing, single engine Individual owner
Texas
Experimental 2019-08-26 ValidFAA registration status code V: Valid registration. All codes
N219RT Socata
TB20
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Standard 2019-08-23 ValidFAA registration status code V: Valid registration. All codes
N9744E Bellanca
17-31ATC
Fixed-wing, single engine Aerospace Trust Management LLC
Wilmington, Delaware
Standard 2019-08-23 ValidFAA registration status code V: Valid registration. All codes
N9207N Maule
M-6-235
Fixed-wing, single engine Co-owned owner
Washington
Standard 2019-08-22 ValidFAA registration status code V: Valid registration. All codes
N616R Robinson Helicopter
R44 II
Helicopter Hangar 21 Aviation INC
Orange, California
Standard 2019-08-16 ValidFAA registration status code V: Valid registration. All codes
N5020Y Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2019-08-15 ValidFAA registration status code V: Valid registration. All codes
N858Z Robinson Helicopter
R44 II
Helicopter Stearman Air Tours INC
Gatesville, North Carolina
Standard 2019-08-15 ValidFAA registration status code V: Valid registration. All codes
N214JA Aero Commander
500 S
Fixed-wing, multi-engine Der Aviation LLC
Dover, Tennessee
Standard 2019-08-14 ValidFAA registration status code V: Valid registration. All codes
N114WE Rockwell International
114A
Fixed-wing, single engine L & K Aviation Holdings LLC
Leavenworth, Kansas
Standard 2019-08-13 ValidFAA registration status code V: Valid registration. All codes
N88PG Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Tennessee
Standard 2019-08-13 ValidFAA registration status code V: Valid registration. All codes
N9014P Piper
PA-24-260
Fixed-wing, single engine Individual owner
California
Standard 2019-08-09 ValidFAA registration status code V: Valid registration. All codes
N38430 Piper
PA-32R-300
Fixed-wing, single engine Vp Aviation INC
Bloomington, Indiana
Standard 2019-08-07 ValidFAA registration status code V: Valid registration. All codes
N8255M Piper
PA-32R-301
Fixed-wing, single engine Phoenix Wings LLC
Oakland, Florida
Standard 2019-08-06 ValidFAA registration status code V: Valid registration. All codes
N8804M Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Individual owner
Illinois
Restricted 2019-08-05 ValidFAA registration status code V: Valid registration. All codes
N336V Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
Virginia
Standard 2019-08-01 ValidFAA registration status code V: Valid registration. All codes
N60DC Piper
AEROSTAR 600
Fixed-wing, multi-engine Cmsjet Sales LLC
Union Lake, Michigan
Standard 2019-08-01 ValidFAA registration status code V: Valid registration. All codes
N82688 Piper
PA-36-300
Fixed-wing, single engine Wells Flying Services LLC
Holdrege, Nebraska
Restricted 2019-08-01 ValidFAA registration status code V: Valid registration. All codes
N55LD Piper
PA-32R-301
Fixed-wing, single engine Double R Airways LLC
Largo, Florida
Standard 2019-07-30 ValidFAA registration status code V: Valid registration. All codes
N38749 Piper
PA-32R-300
Fixed-wing, single engine Individual owner
California
Standard 2019-07-29 ValidFAA registration status code V: Valid registration. All codes
N252R Piper
PA-32R-300
Fixed-wing, single engine Individual owner
North Carolina
Standard 2019-07-26 ValidFAA registration status code V: Valid registration. All codes
N215C Piper
PA-32-260
Fixed-wing, single engine Tahome LLC
Saint Petersburg, Florida
Standard 2019-07-24 ValidFAA registration status code V: Valid registration. All codes
N788TK Robinson Helicopter
R44 II
Helicopter Individual owner
Colorado
Standard 2019-07-22 ValidFAA registration status code V: Valid registration. All codes
N92949 Piper
PA-32R-301
Fixed-wing, single engine Prouts Travel LLC
Wilmington, Delaware
Standard 2019-07-19 ValidFAA registration status code V: Valid registration. All codes
N2027P Cessna
182T
Fixed-wing, single engine Hake Equipment Leasing LLC
Farmington Hills, Michigan
Standard 2019-07-18 ValidFAA registration status code V: Valid registration. All codes
N964WF Cessna
182T
Fixed-wing, single engine Tempietto INC
Aptos, California
Standard 2019-07-15 ValidFAA registration status code V: Valid registration. All codes
N171TW Piper
PA-32R-301
Fixed-wing, single engine Rsj Aviation LLC
Winston Salem, North Carolina
Standard 2019-07-12 ValidFAA registration status code V: Valid registration. All codes
N66070 Cessna
182T
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2019-07-11 ValidFAA registration status code V: Valid registration. All codes
N153MK Piper
PA-32-301
Fixed-wing, single engine Individual owner
Virginia
Standard 2019-07-10 ValidFAA registration status code V: Valid registration. All codes
N300HP David A Rowell
F1 ROCKET
Fixed-wing, single engine F-1 Rocket Aviation LLC
Lewes, Delaware
Experimental 2019-07-09 ValidFAA registration status code V: Valid registration. All codes
N183BB Cessna
R182
Fixed-wing, single engine Individual owner
Tennessee
Standard 2019-07-08 ValidFAA registration status code V: Valid registration. All codes
N10853 Piper
PA-23-250
Fixed-wing, multi-engine St Johns Marine DBA
San Mateo, Florida
Standard 2019-06-26 ValidFAA registration status code V: Valid registration. All codes
N916DP Piper
PA-23-250
Fixed-wing, multi-engine Galliot Bond LLC
Atlanta, Georgia
Standard 2019-06-26 ValidFAA registration status code V: Valid registration. All codes
N3678M Piper
PA-32-300
Fixed-wing, single engine Cometair LLC
Greensboro, North Carolina
Standard 2019-06-25 ValidFAA registration status code V: Valid registration. All codes
N1044N Maule
M-7-235C
Fixed-wing, single engine Maule Flight INC
Moultrie, Georgia
Standard 2019-06-18 ValidFAA registration status code V: Valid registration. All codes
N900SD Piper
PA-32R-301
Fixed-wing, single engine Spot Aviation LTD LLC
Wilmington, Delaware
Standard 2019-06-18 ValidFAA registration status code V: Valid registration. All codes
N6RE Elsworth Roy H
SEAWIND 3000
Fixed-wing, single engine Southwest Lakes Experience LLC
Sawyer, Michigan
Experimental 2019-06-13 ValidFAA registration status code V: Valid registration. All codes
N5184G Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2019-06-10 ValidFAA registration status code V: Valid registration. All codes
N730W Siai-Marchetti
F.260
Fixed-wing, single engine Individual owner
Washington
Standard 2019-06-06 ValidFAA registration status code V: Valid registration. All codes
N792AD Daniel M Brown
GLASAIR III
Fixed-wing, single engine Individual owner
New York
Experimental 2019-06-06 ValidFAA registration status code V: Valid registration. All codes
N2474C Cessna
182T
Fixed-wing, single engine Architectural Industrial Rentals LLC
Wilmington, Delaware
Standard 2019-06-04 ValidFAA registration status code V: Valid registration. All codes
N273BT Piper
PA-23-250
Fixed-wing, multi-engine N273Bt Air LLC
Sweetser, Indiana
Standard 2019-06-03 ValidFAA registration status code V: Valid registration. All codes
N5545L Socata
TB-20 TRINIDAD
Fixed-wing, single engine Withheld at owner's request
Standard 2019-06-03 ValidFAA registration status code V: Valid registration. All codes
N8038J Piper
AEROSTAR 601P
Fixed-wing, multi-engine Naples LLC
Wilmington, Delaware
Standard 2019-05-31 ValidFAA registration status code V: Valid registration. All codes
N2183K Piper
PA-32-300
Fixed-wing, single engine Maven Aviation LLC
Dillon, Montana
Standard 2019-05-29 ValidFAA registration status code V: Valid registration. All codes
N977M Reed Mike
HARMON ROCKET
Fixed-wing, single engine Individual owner
Idaho
Experimental 2019-05-28 ValidFAA registration status code V: Valid registration. All codes
N997SU Robinson Helicopter
R44 II
Helicopter Southern Utah University
Cedar City, Utah
Standard 2019-05-28 ValidFAA registration status code V: Valid registration. All codes
N606DP Dalton 60 Inc
RV-10
Fixed-wing, single engine Withheld at owner's request
Experimental 2019-05-23 ValidFAA registration status code V: Valid registration. All codes
N272VX Lorne J Spence
VANS ACFT RV-14A
Fixed-wing, single engine Individual owner
Florida
Experimental 2019-05-21 ValidFAA registration status code V: Valid registration. All codes
N670PW Piper
PA-32R-301
Fixed-wing, single engine N670Pw LLC
Monmouth Beach, New Jersey
Standard 2019-05-17 ValidFAA registration status code V: Valid registration. All codes
N701FA Cessna
182T
Fixed-wing, single engine Skylane Flyers LLC
Fort Mill, South Carolina
Standard 2019-05-09 ValidFAA registration status code V: Valid registration. All codes
N998MA Piper
PA-32R-301
Fixed-wing, single engine Warhawk LLC
Latrobe, Pennsylvania
Standard 2019-05-07 ValidFAA registration status code V: Valid registration. All codes
N114VF Piper
AEROSTAR 602P
Fixed-wing, multi-engine Atticus Talon LLC
Wilmington, Delaware
Standard 2019-05-03 ValidFAA registration status code V: Valid registration. All codes
N132ME Cessna
182S
Fixed-wing, single engine Individual owner
Virginia
Standard 2019-05-01 ValidFAA registration status code V: Valid registration. All codes
N3055R Piper
PA-32-300
Fixed-wing, single engine All Sky Aviation LLC
Farmington, Utah
Standard 2019-04-30 ValidFAA registration status code V: Valid registration. All codes
N72658 Cessna
182S
Fixed-wing, single engine Tidewater Flying Club INC
Newport News, Virginia
Standard 2019-04-29 ValidFAA registration status code V: Valid registration. All codes
N713HR Maule
MT-7-260
Fixed-wing, single engine Montana Department of Fish Wildlife and Parks
Helena, Montana
Standard 2019-04-26 ValidFAA registration status code V: Valid registration. All codes
N2145N Piper
PA-32-300
Fixed-wing, single engine Individual owner
Florida
Standard 2019-04-25 ValidFAA registration status code V: Valid registration. All codes
N299RM Piper
PA-23-250
Fixed-wing, multi-engine Gulf Atlantic Airways INC
Gainesville, Florida
Standard 2019-04-25 ValidFAA registration status code V: Valid registration. All codes
N8432B Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Tennessee
Standard 2019-04-25 ValidFAA registration status code V: Valid registration. All codes
N260E Agusta Spa
F.260D
Fixed-wing, single engine Neo Terra Aviation LLC
Setauket, New York
Standard 2019-04-24 ValidFAA registration status code V: Valid registration. All codes
N28228 Socata
TB-20 TRINIDAD
Fixed-wing, single engine Sunspray Sailing LTD
Pompano Beach, Florida
Standard 2019-04-24 ValidFAA registration status code V: Valid registration. All codes
N166DA Rockwell International
114
Fixed-wing, single engine Anca Aircraft LLC
Fort Myers, Florida
Standard 2019-04-23 ValidFAA registration status code V: Valid registration. All codes
N427G Rockwell International
114
Fixed-wing, single engine 5 Star Farm Management INC
Linden, California
Standard 2019-04-22 ValidFAA registration status code V: Valid registration. All codes
N114SS Rockwell International
114
Fixed-wing, single engine Heritage Air LLC
Scappoose, Oregon
Standard 2019-04-19 ValidFAA registration status code V: Valid registration. All codes
N1378J Johnson William M
TROJAN TA-16
Fixed-wing, single engine Aeronautics INC
Vero Beach, Florida
Experimental 2019-04-18 ValidFAA registration status code V: Valid registration. All codes
N3646K Piper
AEROSTAR 601P
Fixed-wing, multi-engine Co-owned owner
Colorado
Standard 2019-04-18 ValidFAA registration status code V: Valid registration. All codes
N360ME Cessna
182S
Fixed-wing, single engine B L T 360 Aviation LLC
Dalhart, Texas
Standard 2019-04-17 ValidFAA registration status code V: Valid registration. All codes
N628PD Cessna
182S
Fixed-wing, single engine Individual owner
Texas
Standard 2019-04-17 ValidFAA registration status code V: Valid registration. All codes
N6589W Maule
M-7-235C
Fixed-wing, single engine Individual owner
Maine
Standard 2019-04-15 ValidFAA registration status code V: Valid registration. All codes
N897MA Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Texas
Standard 2019-04-15 ValidFAA registration status code V: Valid registration. All codes
N224GN Norcross Geoffrey C
SEAWIND 3000
Fixed-wing, single engine Individual owner
Delaware
Experimental 2019-04-12 ValidFAA registration status code V: Valid registration. All codes
N654JW Wilson Jared D
RV-10
Fixed-wing, single engine Individual owner
Utah
Experimental 2019-04-04 ValidFAA registration status code V: Valid registration. All codes
N696EA Cessna
182T
Fixed-wing, single engine Hubbard Broadcasting INC
Saint Paul, Minnesota
Standard 2019-04-04 ValidFAA registration status code V: Valid registration. All codes
N474SH Robinson Helicopter
R44 II
Helicopter Meadowbrook Investments LLC
Cottage Grove, Oregon
Standard 2019-04-02 ValidFAA registration status code V: Valid registration. All codes
N5854N Rockwell International
114
Fixed-wing, single engine Individual owner
Illinois
Standard 2019-04-02 ValidFAA registration status code V: Valid registration. All codes
N33JD Piper
PA-32-300
Fixed-wing, single engine Riggs Alan Vance
Artesia, New Mexico
Standard 2019-04-01 ValidFAA registration status code V: Valid registration. All codes
N436KC Piper
PA-32R-301
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2019-04-01 ValidFAA registration status code V: Valid registration. All codes
N8199Y Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
California
Standard 2019-03-30 ValidFAA registration status code V: Valid registration. All codes
N88WP Piper
PA-32RT-300
Fixed-wing, single engine N88Wp LLC
Magnolia, Texas
Standard 2019-03-29 ValidFAA registration status code V: Valid registration. All codes
N100DD Ryan Aeronautical
NAVION
Fixed-wing, single engine Individual owner
Colorado
Standard 2019-03-26 ValidFAA registration status code V: Valid registration. All codes
N240MA Sinton Jack
GLASAIR III
Fixed-wing, single engine Southern Air Services LLC
Okeechobee, Florida
Experimental 2019-03-26 ValidFAA registration status code V: Valid registration. All codes
N9128Z Piper
PA-32R-301
Fixed-wing, single engine Rpd Aviation LLC
Saint Joseph, Minnesota
Standard 2019-03-25 ValidFAA registration status code V: Valid registration. All codes
N58LB Aerofab Inc
LAKE 250
Fixed-wing, single engine Aircraft Partners LLC
Chanhassen, Minnesota
Standard 2019-03-23 ValidFAA registration status code V: Valid registration. All codes
N76AH Piper
PA32-301FT
Fixed-wing, single engine Orthoplane LLC
Kalamazoo, Michigan
Standard 2019-03-21 ValidFAA registration status code V: Valid registration. All codes
N928GT Commander Aircraft Co
114-B
Fixed-wing, single engine Individual owner
Colorado
Standard 2019-03-21 ValidFAA registration status code V: Valid registration. All codes
N300DL Piper
PA-32-300
Fixed-wing, single engine Santa Barbara Flying Club
Santa Barbara, California
Standard 2019-03-16 ValidFAA registration status code V: Valid registration. All codes
N3560X Cessna
182S
Fixed-wing, single engine Co-owned owner
Washington
Standard 2019-03-15 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.