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
N8393G Piper
PA-32R-301
Fixed-wing, single engine
Standard 1991-09-09 ValidFAA registration status code V: Valid registration. All codes
N5893N Rockwell International
114A
Fixed-wing, single engine Individual owner
Texas
Standard 1991-05-18 ValidFAA registration status code V: Valid registration. All codes
N38999 Piper
PA-32R-300
Fixed-wing, single engine Raymond O Bentley INC
Winter Haven, Florida
Standard 1991-04-03 ValidFAA registration status code V: Valid registration. All codes
N311RP Petersen Roger
SKYBOLT
Fixed-wing, single engine Individual owner
Kentucky
Experimental 1991-03-15 ValidFAA registration status code V: Valid registration. All codes
N2218S Piper
PA-32-300
Fixed-wing, single engine Individual owner
Texas
Standard 1991-01-03 ValidFAA registration status code V: Valid registration. All codes
N8808B Eagle Aircraft Co.-Bellanca
EAGLE DW-1
Fixed-wing, single engine Individual owner
Montana
Restricted 1990-08-01 ValidFAA registration status code V: Valid registration. All codes
N99WZ Maule
M-6-235
Fixed-wing, single engine Surgair INC
Absarokee, Montana
Standard 1990-07-19 ValidFAA registration status code V: Valid registration. All codes
N1041H Piper
PA-32R-300
Fixed-wing, single engine Century Flight Systems INC
Mineral Wells, Texas
Standard 1990-02-20 ValidFAA registration status code V: Valid registration. All codes
N8654P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Connecticut
Standard 1990-01-13 ValidFAA registration status code V: Valid registration. All codes
N4364F Piper
PA-32-301
Fixed-wing, single engine Pwc Hawaii CORP
Lahaina, Hawaii
Standard 1989-10-12 ValidFAA registration status code V: Valid registration. All codes
N350DF Forton Donald E
SUNDANCE
Fixed-wing, single engine Individual owner
Michigan
Experimental 1989-08-18 ValidFAA registration status code V: Valid registration. All codes
N723CF Piper
PA-32R-300
Fixed-wing, single engine Cay Air INC
Largo, Florida
Standard 1989-07-24 ValidFAA registration status code V: Valid registration. All codes
N555MJ Marker Michael M Jr
GLASAIR III
Fixed-wing, single engine Co-owned owner
New Mexico
Experimental 1989-06-13 ValidFAA registration status code V: Valid registration. All codes
N2442V Piper
PA-36-300
Fixed-wing, single engine Barts Flying Service INC
Storm Lake, Iowa
Restricted 1989-06-01 ValidFAA registration status code V: Valid registration. All codes
N114US Rockwell International
114
Fixed-wing, single engine Co-owned owner
California
Standard 1989-03-09 ValidFAA registration status code V: Valid registration. All codes
N8888E Fieseler Ronald G
SKYBOLT
Fixed-wing, single engine Individual owner
Texas
Experimental 1989-02-27 ValidFAA registration status code V: Valid registration. All codes
N8192H Piper
PA-32-301
Fixed-wing, single engine Co-owned owner
Florida
Standard 1989-01-25 ValidFAA registration status code V: Valid registration. All codes
N117MC Pilatus Britten-Norman Ltd.
BN-2B-21
Fixed-wing, multi-engine Parish of East Baton Rouge
Baton Rouge, Louisiana
Standard 1988-10-20 ValidFAA registration status code V: Valid registration. All codes
N5064C Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
New York
Standard 1988-09-26 ValidFAA registration status code V: Valid registration. All codes
N2196N Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 1988-08-05 ValidFAA registration status code V: Valid registration. All codes
N2299D Rockwell International
114
Fixed-wing, single engine Cheri Lee INC
Kulpmont, Pennsylvania
Standard 1988-06-18 ValidFAA registration status code V: Valid registration. All codes
N245MB Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
California
Standard 1988-06-09 ValidFAA registration status code V: Valid registration. All codes
N8703P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Washington
Restricted 1988-04-08 ValidFAA registration status code V: Valid registration. All codes
N6051H Piper
PA-32-300
Fixed-wing, single engine Flying Six INC
Mc Cool Junction, Nebraska
Standard 1987-12-16 ValidFAA registration status code V: Valid registration. All codes
N8348H Piper
PA-32R-301
Fixed-wing, single engine Individual owner
New York
Standard 1987-02-06 ValidFAA registration status code V: Valid registration. All codes
N8343H Piper
PA-32R-301
Fixed-wing, single engine G&C Leasing INC
Lunenburg, Massachusetts
Standard 1986-08-18 ValidFAA registration status code V: Valid registration. All codes
N47630 Piper
PA-32R-300
Fixed-wing, single engine Individual owner
New York
Standard 1986-07-01 ValidFAA registration status code V: Valid registration. All codes
N42050 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Texas
Standard 1986-03-05 ValidFAA registration status code V: Valid registration. All codes
N4984F Rockwell International
114
Fixed-wing, single engine Individual owner
Ohio
Standard 1985-09-19 ValidFAA registration status code V: Valid registration. All codes
N773HD Bronner
STEEN SKYBOLT
Fixed-wing, single engine Individual owner
Texas
Experimental 1985-09-10 ValidFAA registration status code V: Valid registration. All codes
N8813K Eagle Aircraft Co
EAGLE DW-1
Fixed-wing, single engine Precissi Flying Service INC
Lodi, California
Restricted 1985-09-10 ValidFAA registration status code V: Valid registration. All codes
N108WM Piper
PA-32-300
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 1985-04-03 ValidFAA registration status code V: Valid registration. All codes
N5796N Rockwell International
114
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 1984-01-16 ValidFAA registration status code V: Valid registration. All codes
N1350U Dehavilland
DHC-1 T.MK. 10
Fixed-wing, single engine Individual owner
Texas
Experimental 1983-12-06 ValidFAA registration status code V: Valid registration. All codes
N9617C Piper
PA-32RT-300
Fixed-wing, single engine Pete and Pete Sales INC
Williamsville, New York
Standard 1983-04-08 ValidFAA registration status code V: Valid registration. All codes
N300AD Slatter Lowell J
SA-750
Fixed-wing, single engine Individual owner
Idaho
Experimental 1982-06-30 ValidFAA registration status code V: Valid registration. All codes
N81877 Piper
PA-32R-301
Fixed-wing, single engine Ansen Leasing CO
Boone, North Carolina
Standard 1982-06-29 ValidFAA registration status code V: Valid registration. All codes
N51826 Van Dyke James C
SA-750
Fixed-wing, single engine Individual owner
California
Experimental 1979-10-29 ValidFAA registration status code V: Valid registration. All codes
N100AE Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Nebraska
Standard Sale reportedFAA registration status code 7. All codes
N11379 Cessna
206H
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N1165Z Aero Commander
500-B
Fixed-wing, multi-engine Individual owner
New Mexico
Standard PendingFAA registration status code R: Registration pending. All codes
N116G Maule
M-7-235B
Fixed-wing, single engine Individual owner
Wyoming
Standard PendingFAA registration status code R: Registration pending. All codes
N1176R Cessna
182T
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N124AS Robinson Helicopter
R44 II
Helicopter Lek Services CORP
Houston, Texas
Restricted ValidFAA registration status code V: Valid registration. All codes
N1402X Aerofab Inc
LAKE LA-250
Fixed-wing, single engine Individual owner
Ohio
Standard PendingFAA registration status code R: Registration pending. All codes
N144AK Robinson Helicopter
R44 II
Helicopter Express Helicopters LLC
Houston, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N168TC Cessna
182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N183ME Cessna
206H
Fixed-wing, single engine Individual owner
Arizona
Standard PendingFAA registration status code R: Registration pending. All codes
N2041S Cessna
182T
Fixed-wing, single engine Individual owner
Texas
Standard CanceledFAA registration status code 20: Registration pending, canceled. All codes
N2131A Cessna
182T
Fixed-wing, single engine Tru Flight Materials LLC
Wilmington, Delaware
Standard ValidFAA registration status code V: Valid registration. All codes
N2360A Cessna
206H
Fixed-wing, single engine Individual owner
Iowa
Standard PendingFAA registration status code R: Registration pending. All codes
N242KM Piper
PA-32-300
Fixed-wing, single engine Plane Care INC
Weston, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N2439B Cessna
182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N2445R Cessna
182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N2449C Cessna
182S
Fixed-wing, single engine Airmart Aircraft Holdings INC
Oak Ridge, North Carolina
Standard ValidFAA registration status code V: Valid registration. All codes
N2510X Piper
PA-32-301
Fixed-wing, single engine Individual owner
Connecticut
Standard PendingFAA registration status code R: Registration pending. All codes
N2535E Socata
TB-20 TRINIDAD
Fixed-wing, single engine Individual owner
Georgia
Standard Sale reportedFAA registration status code 7. All codes
N25KC Whisenant Guy
SKYBOLT
Fixed-wing, single engine Individual owner
Mississippi
Experimental PendingFAA registration status code R: Registration pending. All codes
N27CY Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Florida
Standard Sale reportedFAA registration status code 7. All codes
N2NZ Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Arkansas
Standard PendingFAA registration status code R: Registration pending. All codes
N304CG Cessna
182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N30725 Piper
PA-32RT-300
Fixed-wing, single engine Individual owner
Oklahoma
Standard PendingFAA registration status code R: Registration pending. All codes
N30SX Meredith / Ore
GLASAIR III
Fixed-wing, single engine Individual owner
Ohio
Experimental PendingFAA registration status code R: Registration pending. All codes
N35590 Piper
PA-32R-301
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N3572B Piper
PA-32R-301
Fixed-wing, single engine Piper Aircraft INC
Vero Beach, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N357DG Piper
AEROSTAR 601P
Fixed-wing, multi-engine Withheld at owner's request
Standard PendingFAA registration status code R: Registration pending. All codes
N357KF Cessna
182S
Fixed-wing, single engine Airmart INC
Lexington, Kentucky
Standard ValidFAA registration status code V: Valid registration. All codes
N36590 Piper
PA-32RT-300
Fixed-wing, single engine American Aircraft Sales LLC
Lincolnshire, Illinois
Standard ValidFAA registration status code V: Valid registration. All codes
N3676E Piper
PA-36-300
Fixed-wing, single engine Piper Aircraft INC
Vero Beach, Florida
Restricted ValidFAA registration status code V: Valid registration. All codes
N370 Piper
PA-23-250
Fixed-wing, multi-engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N3837E Piper
PA-36-300
Fixed-wing, single engine Piper Aircraft INC
Vero Beach, Florida
Restricted ValidFAA registration status code V: Valid registration. All codes
N3AG Piper
PA-60-602P
Fixed-wing, multi-engine Managed Aviation INC
The Villages, Florida
Standard Expired dealerFAA registration status code 23: Expired dealer, pending cancellation. All codes
N40978 Piper
PA-31-350
Fixed-wing, multi-engine Dodson International Parts INC
Rantoul, Kansas
Standard ValidFAA registration status code V: Valid registration. All codes
N411VS Robinson Helicopter
R44 II
Helicopter Individual owner
Alaska
Standard PendingFAA registration status code R: Registration pending. All codes
N418WR Cessna
182S
Fixed-wing, single engine Beegles Aircraft Service LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N423TA Cessna
T182T
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N441CH Robinson Helicopter
R44 II
Helicopter Individual owner
Washington
Standard PendingFAA registration status code R: Registration pending. All codes
N473TD Piper
PA-60-602P
Fixed-wing, multi-engine Managed Aviation INC
The Villages, Florida
Standard Expired dealerFAA registration status code 23: Expired dealer, pending cancellation. All codes
N484WB Robinson Helicopter
R44 II
Helicopter Individual owner
Missouri
Multiple PendingFAA registration status code R: Registration pending. All codes
N51282 Cessna
T206H
Fixed-wing, single engine Individual owner
Nebraska
Standard PendingFAA registration status code R: Registration pending. All codes
N5191F Cessna
182T
Fixed-wing, single engine Arapahoe Aero Aircraft Sales LLC
Englewood, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N5501Y Maule
MT-7-260
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N5515V Maule
M-7-260C
Fixed-wing, single engine Mt Aircraft LLC
Port Orange, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N56520 Maule
M-6-235
Fixed-wing, single engine Mt Aircraft LLC
Port Orange, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N5655J Maule
M-6-235
Fixed-wing, single engine Individual owner
South Dakota
Standard Sale reportedFAA registration status code 17: Sale reported, pending cancellation. All codes
N5655P Maule
MX-7-235
Fixed-wing, single engine Individual owner
Florida
Standard PendingFAA registration status code R: Registration pending. All codes
N6068R Piper
AEROSTAR 600
Fixed-wing, multi-engine Piper Aircraft INC
Vero Beach, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N6077T Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard ValidFAA registration status code V: Valid registration. All codes
N620KV Maule
MX-7-235
Fixed-wing, single engine Individual owner
Alaska
Standard PendingFAA registration status code R: Registration pending. All codes
N6230Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Tennessee
Experimental PendingFAA registration status code R: Registration pending. All codes
N6578A Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
New Jersey
Standard PendingFAA registration status code R: Registration pending. All codes
N679MC Cessna
182T
Fixed-wing, single engine Van Bortel Aircraft INC
Arlington, Texas
Standard ValidFAA registration status code V: Valid registration. All codes
N67PG Frazior W W/Frazior J C
HARMON ROCKET II
Fixed-wing, single engine Individual owner
Florida
Experimental Sale reportedFAA registration status code 7. All codes
N6887J Piper
PA-32R-300
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N690RG Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Puerto Rico
Standard PendingFAA registration status code R: Registration pending. All codes
N6917A Piper
PA-23-250
Fixed-wing, multi-engine Piper Aircraft INC
Vero Beach, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N701KE Smith
AEROSTAR 601P
Fixed-wing, multi-engine Northern Jet Sales LLC
Port Saint Lucie, Florida
Standard ValidFAA registration status code V: Valid registration. All codes
N71P Maule
M-7-260C
Fixed-wing, single engine Individual owner
Florida
Standard PendingFAA registration status code R: Registration pending. All codes
N725BJ Cessna
206H
Fixed-wing, single engine Bas Part Sales LLC
Greeley, Colorado
Standard ValidFAA registration status code V: Valid registration. All codes
N72671 Cessna
182S
Fixed-wing, single engine Vfr Aircraft and Training LLC
Farmington, Missouri
Standard Expired dealerFAA registration status code 23: Expired dealer, pending cancellation. 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.