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
N796HE Larry Erd
VANS RV-10
Fixed-wing, single engine Individual owner
Florida
Experimental 2023-08-04 ValidFAA registration status code V: Valid registration. All codes
N179JS Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard 2023-08-03 ValidFAA registration status code V: Valid registration. All codes
N182FN Cessna
182S
Fixed-wing, single engine Sumner Investments LLC
Denham Springs, Louisiana
Standard 2023-08-02 ValidFAA registration status code V: Valid registration. All codes
N989RM Maule
MT-7-235
Fixed-wing, single engine Individual owner
Florida
Standard 2023-08-02 ValidFAA registration status code V: Valid registration. All codes
N144SJ Piper Aircraft Corporation
PA-60-601P
Fixed-wing, multi-engine Trigger Down LLC
Virginia Beach, Virginia
Standard 2023-07-27 ValidFAA registration status code V: Valid registration. All codes
N9123D Piper
PA-32-301
Fixed-wing, single engine Engineers Flying Club
Bethany, Oklahoma
Standard 2023-07-27 ValidFAA registration status code V: Valid registration. All codes
N3YU Cessna
182T
Fixed-wing, single engine T2 Aviation LLC
Missouri City, Texas
Standard 2023-07-26 ValidFAA registration status code V: Valid registration. All codes
N4828H Robinson Helicopter
R44 II
Helicopter Wilson Aviation Club LLC
Wilmington, Delaware
Standard 2023-07-26 ValidFAA registration status code V: Valid registration. All codes
N8301F Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Michigan
Standard 2023-07-26 ValidFAA registration status code V: Valid registration. All codes
N365MA Cessna
182S
Fixed-wing, single engine Dip Aviation LLC
Fort Lauderdale, Florida
Standard 2023-07-25 ValidFAA registration status code V: Valid registration. All codes
N7272R Cessna
182S
Fixed-wing, single engine Bst Equipment LLC
Spearfish, South Dakota
Standard 2023-07-25 ValidFAA registration status code V: Valid registration. All codes
N1044L Maule
M-7-235C
Fixed-wing, single engine Individual owner
Alaska
Standard 2023-07-24 ValidFAA registration status code V: Valid registration. All codes
N58AL Luters Arnis V
GLASAIRIII
Fixed-wing, single engine Individual owner
California
Experimental 2023-07-24 ValidFAA registration status code V: Valid registration. All codes
N665PW Cessna
182S
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2023-07-20 ValidFAA registration status code V: Valid registration. All codes
N787EM Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Kentucky
Standard 2023-07-19 ValidFAA registration status code V: Valid registration. All codes
N8812E Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Heiman Flying Services LLC
Summerfield, Kansas
Restricted 2023-07-19 ValidFAA registration status code V: Valid registration. All codes
N916RK Gippsaero Pty Ltd
GA8
Fixed-wing, single engine Grant Aviation INC
Anchorage, Alaska
Standard 2023-07-19 ValidFAA registration status code V: Valid registration. All codes
N114KL Rockwell International
114
Fixed-wing, single engine Individual owner
Michigan
Standard 2023-07-13 ValidFAA registration status code V: Valid registration. All codes
N2227J Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Nevada
Standard 2023-07-13 ValidFAA registration status code V: Valid registration. All codes
N260DM Siai-Marchetti
SF260
Fixed-wing, single engine Langeard Aviation INC
Wilmington, Delaware
Standard 2023-07-10 ValidFAA registration status code V: Valid registration. All codes
N7207B Cessna
182S
Fixed-wing, single engine Individual owner
Florida
Standard 2023-07-08 ValidFAA registration status code V: Valid registration. All codes
N762TR Cessna
182T
Fixed-wing, single engine Individual owner
North Carolina
Standard 2023-07-07 ValidFAA registration status code V: Valid registration. All codes
N4995B Piper
PA-24-260
Fixed-wing, single engine Individual owner
California
Standard 2023-07-05 ValidFAA registration status code V: Valid registration. All codes
N63977 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2023-07-05 ValidFAA registration status code V: Valid registration. All codes
N329AB Robinson Helicopter
R44 II
Helicopter Dm Aviation Services LLC
Kennebunk, Maine
Standard 2023-07-04 ValidFAA registration status code V: Valid registration. All codes
N36150 Piper
PA-32RT-300
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard 2023-07-01 ValidFAA registration status code V: Valid registration. All codes
N41484 Piper
PA 46-350P
Fixed-wing, single engine Individual owner
Texas
Standard 2023-07-01 ValidFAA registration status code V: Valid registration. All codes
N231PA Cessna
182S
Fixed-wing, single engine Co-owned owner
Texas
Standard 2023-06-28 ValidFAA registration status code V: Valid registration. All codes
N244MM Robinson Helicopter
R44 II
Helicopter November Alpha LLC DBA
Dover, Delaware
Standard 2023-06-28 ValidFAA registration status code V: Valid registration. All codes
N67MR Cessna
182S
Fixed-wing, single engine Grandview Services LLC
Walnut Creek, California
Standard 2023-06-27 ValidFAA registration status code V: Valid registration. All codes
N153TA Cessna
182T
Fixed-wing, single engine American Eagle 1 LLC
Kimberling City, Missouri
Standard 2023-06-24 ValidFAA registration status code V: Valid registration. All codes
N44YA Robinson Helicopter
R44 II
Helicopter Aarow Aircraft Leasing LLC
Mcminnville, Oregon
Standard 2023-06-22 ValidFAA registration status code V: Valid registration. All codes
N472RP Piper
PA-32-300
Fixed-wing, single engine Wsic LLC
Crosbyton, Texas
Standard 2023-06-22 ValidFAA registration status code V: Valid registration. All codes
N2217E Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Ohio
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N506CX Robinson Helicopter
R44 II
Helicopter Eagle Helicopters LLC
Beulah, North Dakota
Standard 2023-06-21 ValidFAA registration status code V: Valid registration. All codes
N9282P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Virginia
Standard 2023-06-20 ValidFAA registration status code V: Valid registration. All codes
N88135 Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Reed Aviation INC
Iota, Louisiana
Restricted 2023-06-19 ValidFAA registration status code V: Valid registration. All codes
N544AB Robinson Helicopter
R44 II
Helicopter 544Ab Aircraft Leasing LLC
Spanish Fork, Utah
Standard 2023-06-17 ValidFAA registration status code V: Valid registration. All codes
N8359X Piper
PA-32R-301
Fixed-wing, single engine W&H Services LLC
Boerne, Texas
Standard 2023-06-17 ValidFAA registration status code V: Valid registration. All codes
N216MA Piper
PA-32R-301
Fixed-wing, single engine Patriot Flight LLC
Bartlesville, Oklahoma
Standard 2023-06-16 ValidFAA registration status code V: Valid registration. All codes
N70BM Socata
TB-20 TRINIDAD
Fixed-wing, single engine Aatw LLC
Conway, Arkansas
Standard 2023-06-15 ValidFAA registration status code V: Valid registration. All codes
N6101M Maule
M-6-235
Fixed-wing, single engine 316 Aviation LLC
Sandy, Oregon
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N8238T Piper
PA-32R-301
Fixed-wing, single engine Individual owner
Delaware
Standard 2023-06-14 ValidFAA registration status code V: Valid registration. All codes
N23NV Piper
PA-32R-300
Fixed-wing, single engine Avk Air LLC
Harvest, Alabama
Standard 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N313CH Hautamaki Charles A
GLASAIR SH-3R
Fixed-wing, single engine Individual owner
Illinois
Experimental 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N700EC White Kenneth A
GLASAIR III
Fixed-wing, single engine Individual owner
Nevada
Experimental 2023-06-13 ValidFAA registration status code V: Valid registration. All codes
N329HP Piper
PA-32R-301
Fixed-wing, single engine Right Rudder LLC
Halifax, Pennsylvania
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N88SH Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Indiana
Standard 2023-06-12 ValidFAA registration status code V: Valid registration. All codes
N242AF Cessna
182T
Fixed-wing, single engine Alagar Volare LLC
Anna, Texas
Standard 2023-06-09 ValidFAA registration status code V: Valid registration. All codes
N130K Piper
PA-32RT-300
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Norfolk,
Standard 2023-06-08 InvalidFAA registration status code W: Registration certificate deemed ineffective or invalid. All codes
N62032 Boyer Tom
HARMON ROCKET II
Fixed-wing, single engine Individual owner
Ohio
Experimental 2023-06-08 ValidFAA registration status code V: Valid registration. All codes
N824DB Piper
PA-32R-301
Fixed-wing, single engine Purple Piper Airways LLC
Indian Rocks Beach, Florida
Standard 2023-06-08 ValidFAA registration status code V: Valid registration. All codes
N20VC Socata
TB-20 TRINIDAD
Fixed-wing, single engine Danny J Daigle LLC
Greenville, Maine
Standard 2023-06-07 ValidFAA registration status code V: Valid registration. All codes
N2451U Cessna
182S
Fixed-wing, single engine Co-owned owner
Michigan
Standard 2023-06-07 ValidFAA registration status code V: Valid registration. All codes
N54KP Cessna
182T
Fixed-wing, single engine Individual owner
Tennessee
Standard 2023-06-07 ValidFAA registration status code V: Valid registration. All codes
N31380 Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Nevada
Experimental 2023-06-06 ValidFAA registration status code V: Valid registration. All codes
N6588A Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 2023-06-02 ValidFAA registration status code V: Valid registration. All codes
N344G Robinson Helicopter
R44 II
Helicopter Individual owner
Tennessee
Standard 2023-06-01 ValidFAA registration status code V: Valid registration. All codes
N74500 Robinson Helicopter
R44 II
Helicopter Lanier Equipment Leasing LLC
Gainesville, Georgia
Standard 2023-06-01 ValidFAA registration status code V: Valid registration. All codes
N10EJ Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Florida
Standard 2023-05-31 ValidFAA registration status code V: Valid registration. All codes
N36460 Piper
AEROSTAR 602P
Fixed-wing, multi-engine 63Nl LLC
Willmar, Minnesota
Standard 2023-05-29 ValidFAA registration status code V: Valid registration. All codes
N4567 Robinson Helicopter
R44 II
Helicopter Amigo Helicopter Services LLC
Falfurrias, Texas
Multiple 2023-05-29 ValidFAA registration status code V: Valid registration. All codes
N55PV Robinson Helicopter
R44 II
Helicopter Heli Munnik LLC
Springfield, Missouri
Standard 2023-05-29 ValidFAA registration status code V: Valid registration. All codes
N284W Wagen Richard A
VELOCITY XL-FG
Fixed-wing, single engine Individual owner
Michigan
Experimental 2023-05-27 ValidFAA registration status code V: Valid registration. All codes
N7950P Piper
PA-24-250
Fixed-wing, single engine Anahuac Utilities LLC
Wrightsboro, Texas
Standard 2023-05-26 ValidFAA registration status code V: Valid registration. All codes
N15MH Piper
AEROSTAR 601
Fixed-wing, multi-engine Withheld at owner's request
Standard 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N215AV Gippsland Aeronautics Pty Ltd
GA 8
Fixed-wing, single engine National Test Pilot School
Mojave, California
Experimental 2023-05-25 ValidFAA registration status code V: Valid registration. All codes
N65413 Cessna
182T
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2023-05-24 ValidFAA registration status code V: Valid registration. All codes
N622KC Cessna
182T
Fixed-wing, single engine Air Burt LLC
Rochester Hills, Michigan
Standard 2023-05-23 ValidFAA registration status code V: Valid registration. All codes
N31721 Piper
PA-32RT-300
Fixed-wing, single engine Co-owned owner
Texas
Standard 2023-05-22 ValidFAA registration status code V: Valid registration. All codes
N647B Piper
PA-32-300
Fixed-wing, single engine Maxiao Aviation CORP
Milpitas, California
Standard 2023-05-19 ValidFAA registration status code V: Valid registration. All codes
N8409A Piper
PA-32R-301
Fixed-wing, single engine Wngz Aviation Apparel LLC
Sanford, Florida
Standard 2023-05-18 ValidFAA registration status code V: Valid registration. All codes
N3337M Piper
PA-32RT-300
Fixed-wing, single engine Makarios Air LLC
Loganville, Georgia
Standard 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N716JL Robinson Helicopter
R44 II
Helicopter Track D LLC
Talkeetna, Alaska
Standard 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N9516W Cessna
182S
Fixed-wing, single engine Ringco Aviation LLC
Oklahoma City, Oklahoma
Standard 2023-05-17 ValidFAA registration status code V: Valid registration. All codes
N235PH Commander Aircraft Co
114-B
Fixed-wing, single engine Skyrider Anesthesia LLC
Saint Augustine, Florida
Standard 2023-05-16 ValidFAA registration status code V: Valid registration. All codes
N540JK Kee John M Jr
EXPRESS
Fixed-wing, single engine Milanovo Property Holdings CO LLC
Dover, Delaware
Experimental 2023-05-16 ValidFAA registration status code V: Valid registration. All codes
N1LY Cessna
182S
Fixed-wing, single engine All About Lawns INC
Sebring, Florida
Standard 2023-05-15 ValidFAA registration status code V: Valid registration. All codes
N660HB Maule
MX-7-235
Fixed-wing, single engine Individual owner
Georgia
Standard 2023-05-15 ValidFAA registration status code V: Valid registration. All codes
N2382E Cessna
182S
Fixed-wing, single engine Gore Group LLC
Eagle Pass, Texas
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N9643E Bellanca
17-31A
Fixed-wing, single engine El Gato Grande Aviation LLC
Philadelphia, Pennsylvania
Standard 2023-05-10 ValidFAA registration status code V: Valid registration. All codes
N2446R Cessna
182S
Fixed-wing, single engine Edgon INC
Orlando, Florida
Standard 2023-05-06 ValidFAA registration status code V: Valid registration. All codes
N33AK Piper
AEROSTAR 601P
Fixed-wing, multi-engine Moses and Associates INC
Gainesville, Florida
Standard 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N7267Z Cessna
182S
Fixed-wing, single engine Individual owner
Louisiana
Standard 2023-05-05 ValidFAA registration status code V: Valid registration. All codes
N422DM Wingtip To Wingtip Llc
PANZL S-330
Fixed-wing, single engine Individual owner
California
Experimental 2023-05-04 ValidFAA registration status code V: Valid registration. All codes
N8420B Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Splash & Go Seaplanes LLC
Miami, Florida
Standard 2023-05-04 ValidFAA registration status code V: Valid registration. All codes
N11YT Piper
PA-32-301
Fixed-wing, single engine Anm Air LLC
Grimes, Iowa
Standard 2023-05-03 ValidFAA registration status code V: Valid registration. All codes
N247GW Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2023-05-03 ValidFAA registration status code V: Valid registration. All codes
N4799W Rockwell International
114
Fixed-wing, single engine Hudson Kelsey L
Snohomish, Washington
Experimental 2023-05-03 ValidFAA registration status code V: Valid registration. All codes
N98GG Grimaud Joseph A Jr
SEAWIND 3000
Fixed-wing, single engine Sandlapper Aviation of de INC
Bennington, Vermont
Experimental 2023-05-03 ValidFAA registration status code V: Valid registration. All codes
N278KE Robinson Helicopter
R44 II
Helicopter Rotor Technologies INC
Nashua, New Hampshire
Standard 2023-05-02 ValidFAA registration status code V: Valid registration. All codes
N2932F Piper
PA-32-300
Fixed-wing, single engine Iceman Holdings LLC
Greer, South Carolina
Standard 2023-05-02 ValidFAA registration status code V: Valid registration. All codes
N132ST Piper
PA32-301FT
Fixed-wing, single engine Grande Aviation LLC
Englewood, Florida
Standard 2023-05-01 ValidFAA registration status code V: Valid registration. All codes
N233WM Rockwell International
500-S
Fixed-wing, multi-engine Bosco 74 LLC
Wilmington, Delaware
Standard 2023-05-01 ValidFAA registration status code V: Valid registration. All codes
N789PB Borrero J L
GLASAIR III
Fixed-wing, single engine Individual owner
Experimental 2023-05-01 Reports overdueFAA registration status code N: Non-citizen corporation that has not returned its flight-hour reports. All codes
N81223 Piper
PA-32-300
Fixed-wing, single engine Eat Aviation LLC
Metter, Georgia
Standard 2023-05-01 ValidFAA registration status code V: Valid registration. All codes
N10ZV Piper
PA-32R-300
Fixed-wing, single engine That 70S Plane INC
Athens, Georgia
Standard 2023-04-29 ValidFAA registration status code V: Valid registration. All codes
N23383 Cessna
182S
Fixed-wing, single engine Performance Auto Body INC
Knightdale, North Carolina
Standard 2023-04-28 ValidFAA registration status code V: Valid registration. All codes
N666V Bellanca
17-31ATC
Fixed-wing, single engine Southwest Viking LLC
Anthem, Arizona
Standard 2023-04-28 ValidFAA registration status code V: Valid registration. All codes
N2114Z Iar Sa Brasov
IAR 823
Fixed-wing, single engine Eagle & Associates LLC
Lake City, Florida
Experimental 2023-04-26 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.