The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 8, 2026

Lycoming TIO-540 series

5,079 aircraft on the U.S. register carry a Lycoming TIO-540 series engine, rated at about 310 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (1,727 aircraft). The aircraft carrying it were built between 1962 and 2024.

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 TIO-540 series (3 codes). FAA spellings: TI0-540 SER · TIO 540 SER · TIO 540 SER.

When the aircraft were built by decade

By decade built, as a table
aircraft
19402
19507
19601,030
19701,712
1980483
1990461
2000827
201010
20204

What the FAA has certified, ordered and been told about the Lycoming TIO-540 series the component layer

The design is held under 1 type certificate (E14EA, held by Lycoming Engines). The FAA has issued 41 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 363 failure reports with the FAA since 1995, 11 of them in the last ten years.

FAA orders 41 airworthiness directives · newest first

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
2012-10-242012-19-01 · Crankshafts · engine

All orders naming the Lycoming TIO-540 series

Failure reports 363 since · what operators and shops told the FAA

0142842569502071218125
Failure reports by year, as a table
reports
951
974
983
0011
0156
0252
0346
0432
0537
0623
0715
0816
0912
1014
119
1211
132
145
153
173
181
194
211
241
251

Parts most often reported as the reports name them

Bolt15Pump10Cylinder8Regulator8Skin8Tube8Spar7Wheel7Bearing6Brace6
Parts most reported, as a table
reports
Bolt15
Pump10
Cylinder8
Regulator8
Skin8
Tube8
Spar7
Wheel7
Bearing6
Brace6

Latest reports

2025-05-20Actuator: broken
2024-03-05Magneto: worn
2021-05-19None: collapsed
2019-12-26Torque Link: separated
2019-08-07Probe: false indication

Certificates and bulletins

E14EAType certificate held by Lycoming Engines · 40 models listed · revised May 24, 2012

Safety bulletins 10 · 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
2011-03-31NE-08-26R3 · Magneto/Distributor
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

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-tio-540-series.json.

Aircraft newest certificates first · 5,079

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N234DL Piper
PA-32R-301T
Fixed-wing, single engine Angel Wings LLC
Waxhaw, North Carolina
Standard 1999-03-25 ValidFAA registration status code V: Valid registration. All codes
N77DX Mooney
M20M
Fixed-wing, single engine Co-owned owner
Texas
Standard 1999-03-20 ValidFAA registration status code V: Valid registration. All codes
N8652N Piper
PA-32-300
Fixed-wing, single engine Individual owner
New Mexico
Standard 1999-03-03 ValidFAA registration status code V: Valid registration. All codes
N795JB Piper
PA-24-260
Fixed-wing, single engine Mountain High LLC
Ketchum, Idaho
Standard 1999-02-17 ValidFAA registration status code V: Valid registration. All codes
N40033 Piper
PA-32R-300
Fixed-wing, single engine Fly Well Flying Club INC
Roseville, Minnesota
Standard 1999-01-21 ValidFAA registration status code V: Valid registration. All codes
N406WB Piper
PA-32-300
Fixed-wing, single engine New England Airlines INC
Westerly, Rhode Island
Standard 1999-01-04 ValidFAA registration status code V: Valid registration. All codes
N6AR Piper
PA-31
Fixed-wing, multi-engine Bluewater Airmotive Corporation
Wilmington, Delaware
Standard 1998-12-10 ValidFAA registration status code V: Valid registration. All codes
N43471 Piper
PA-32-301T
Fixed-wing, single engine Individual owner
Colorado
Standard 1998-12-04 ValidFAA registration status code V: Valid registration. All codes
N300RM Piper
PA-32-300
Fixed-wing, single engine Hiscall Enterprises INC
Dickson, Tennessee
None on file 1998-11-23 ValidFAA registration status code V: Valid registration. All codes
N4147R Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Texas
Standard 1998-11-18 ValidFAA registration status code V: Valid registration. All codes
N560MP Piper
PA 46-350P
Fixed-wing, single engine Jet Prop Aviation INC
Phoenix, Arizona
Standard 1998-11-10 ValidFAA registration status code V: Valid registration. All codes
N398TC Piper
PA-32R-301T
Fixed-wing, single engine C & H Air Direct Flight Service INC
Wilmington, Delaware
Standard 1998-10-22 ValidFAA registration status code V: Valid registration. All codes
N3710M Piper
PA-32R-301T
Fixed-wing, single engine Co-owned owner
California
Standard 1998-10-02 ValidFAA registration status code V: Valid registration. All codes
N991K Piper
PA-24-260
Fixed-wing, single engine Individual owner
Ohio
Standard 1998-09-22 ValidFAA registration status code V: Valid registration. All codes
N272CA Aero Commander
500-B
Fixed-wing, multi-engine Central Airlines INC
Leawood, Kansas
Standard 1998-09-09 ValidFAA registration status code V: Valid registration. All codes
N353SL Piper
PA-31-350
Fixed-wing, multi-engine Sneaker Air INC
Miami, Florida
Standard 1998-08-25 ValidFAA registration status code V: Valid registration. All codes
N44295 Piper
PA-32-300
Fixed-wing, single engine Caribbean Aviation Lc
Miami, Florida
Standard 1998-08-07 ValidFAA registration status code V: Valid registration. All codes
N8614N Piper
PA-32-300
Fixed-wing, single engine Farmers Bank of Northern Missouri Na
Unionville, Missouri
Standard 1998-07-17 ValidFAA registration status code V: Valid registration. All codes
N82279 Piper
PA-32-301T
Fixed-wing, single engine Individual owner
Indiana
Standard 1998-07-16 ValidFAA registration status code V: Valid registration. All codes
N39771 Piper
PA-32-300
Fixed-wing, single engine Individual owner
Arkansas
Standard 1998-06-30 ValidFAA registration status code V: Valid registration. All codes
N4426Y Piper
PA-23-250
Fixed-wing, multi-engine R & S Enterprises
Fort Wayne, Indiana
Standard 1998-06-10 ValidFAA registration status code V: Valid registration. All codes
N6UC Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard 1998-06-03 ValidFAA registration status code V: Valid registration. All codes
N5870V Piper
PA-32R-300
Fixed-wing, single engine Hagerstown Regional Aero Club
Dallastown, Pennsylvania
Standard 1998-04-30 ValidFAA registration status code V: Valid registration. All codes
N2243F Piper
PA-32RT-300T
Fixed-wing, single engine Individual owner
California
Standard 1998-04-24 ValidFAA registration status code V: Valid registration. All codes
N8248Q Piper
PA-32R-301T
Fixed-wing, single engine Elkhart Flying Club INC
Nappanee, Indiana
Standard 1998-04-21 ValidFAA registration status code V: Valid registration. All codes
N46WH Piper
PA 46-350P
Fixed-wing, single engine Abecca CORP
Jackson, Michigan
Standard 1998-04-18 ValidFAA registration status code V: Valid registration. All codes
N4192W Piper
PA-32S-300
Fixed-wing, single engine Co-owned owner
Indiana
Standard 1998-03-18 ValidFAA registration status code V: Valid registration. All codes
N54238 Piper
PA-23-250
Fixed-wing, multi-engine Backcreek Farms INC
Rougemont, North Carolina
Standard 1998-03-05 ValidFAA registration status code V: Valid registration. All codes
N1541X Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Illinois
Standard 1998-01-20 ValidFAA registration status code V: Valid registration. All codes
N15036 Piper
PA-32-300
Fixed-wing, single engine Avocation Aviation INC
Muncie, Indiana
Standard 1997-11-05 ValidFAA registration status code V: Valid registration. All codes
N8911P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Arizona
Standard 1997-10-27 ValidFAA registration status code V: Valid registration. All codes
N20LX Piper
PA-31-350
Fixed-wing, multi-engine Lockheed Martin Corporation
Palmdale, California
Experimental 1997-10-02 ValidFAA registration status code V: Valid registration. All codes
N8952P Piper
PA-24-260
Fixed-wing, single engine Co-owned owner
Missouri
Standard 1997-09-30 ValidFAA registration status code V: Valid registration. All codes
N108AC Piper
PA-31-325
Fixed-wing, multi-engine Individual owner
Florida
Standard 1997-09-29 ValidFAA registration status code V: Valid registration. All codes
N5242S Piper
PA-32-300
Fixed-wing, single engine Tanakon INC
Fairbanks, Alaska
Standard 1997-09-20 ValidFAA registration status code V: Valid registration. All codes
N7868F Piper
PA-32R-300
Fixed-wing, single engine C & R Aero INC
Marco Island, Florida
Standard 1997-09-15 ValidFAA registration status code V: Valid registration. All codes
N11BH Harbold Norris Brown
SEQUOIA 300
Fixed-wing, single engine Individual owner
South Carolina
Experimental 1997-09-05 ValidFAA registration status code V: Valid registration. All codes
N900TS Piper
PA-23-250
Fixed-wing, multi-engine Midwest Flying Service INC
Sheldon, Iowa
Standard 1997-08-07 ValidFAA registration status code V: Valid registration. All codes
N28200 Bellanca
17-31ATC
Fixed-wing, single engine Individual owner
Arizona
Standard 1997-07-21 ValidFAA registration status code V: Valid registration. All codes
N83BF Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
California
Standard 1997-05-28 ValidFAA registration status code V: Valid registration. All codes
N5295T Piper
PA-32-300
Fixed-wing, single engine Hayley Douglas Aviation INC
Auburn, Alabama
Standard 1997-05-16 ValidFAA registration status code V: Valid registration. All codes
N228CA Cessna
TR182
Fixed-wing, single engine Individual owner
Kansas
Standard 1997-04-29 ValidFAA registration status code V: Valid registration. All codes
N395PM Piper
PA 46-350P
Fixed-wing, single engine Bare Bones Aircraft INC
Fort Walton Beach, Florida
Standard 1997-04-17 ValidFAA registration status code V: Valid registration. All codes
N43527 Piper
PA-32-300
Fixed-wing, single engine Individual owner
Washington
Standard 1997-04-11 ValidFAA registration status code V: Valid registration. All codes
N32512 Piper
PA-32-300
Fixed-wing, single engine Individual owner
Missouri
Standard 1997-03-31 ValidFAA registration status code V: Valid registration. All codes
N447T Piper
PA-23-250
Fixed-wing, multi-engine Thompson Systems INC
Amana, Iowa
Standard 1997-03-18 ValidFAA registration status code V: Valid registration. All codes
N305MC Piper
PA-32-300
Fixed-wing, single engine Shen Air II INC
Mount Crawford, Virginia
Standard 1997-03-11 ValidFAA registration status code V: Valid registration. All codes
N8966N Piper
PA-32-300
Fixed-wing, single engine Cherokee Six LLC
Minburn, Iowa
Standard 1997-02-27 ValidFAA registration status code V: Valid registration. All codes
N9247Y Piper
PA-31-310
Fixed-wing, multi-engine West Bend Air INC
West Bend, Wisconsin
Standard 1997-02-06 ValidFAA registration status code V: Valid registration. All codes
N8922N Piper
PA-32-300
Fixed-wing, single engine Individual owner
California
Standard 1997-01-15 ValidFAA registration status code V: Valid registration. All codes
N32SB Piper
PA-31-325
Fixed-wing, multi-engine Individual owner
Maryland
Restricted 1997-01-10 ValidFAA registration status code V: Valid registration. All codes
N22363 Piper
PA-32RT-300T
Fixed-wing, single engine Barnes Welding INC
Waterville, Washington
Standard 1996-12-20 ValidFAA registration status code V: Valid registration. All codes
N8282N Piper
PA-32R-301T
Fixed-wing, single engine Mercury Aircraft Holdings INC
West Monroe, Louisiana
Standard 1996-11-14 ValidFAA registration status code V: Valid registration. All codes
N4747W Rockwell International
114
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 1996-11-13 ValidFAA registration status code V: Valid registration. All codes
N212KM Piper
PA 46-350P
Fixed-wing, single engine Individual owner
Ohio
Standard 1996-10-30 ValidFAA registration status code V: Valid registration. All codes
N999AB Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
California
Standard 1996-10-30 ValidFAA registration status code V: Valid registration. All codes
N500GW Aero Commander
500-B
Fixed-wing, multi-engine Feldtman Enterprises INC
Wilmington, Delaware
Standard 1996-10-21 ValidFAA registration status code V: Valid registration. All codes
N6393Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Washington
Standard 1996-09-20 ValidFAA registration status code V: Valid registration. All codes
N42RT Piper
PA-32R-301T
Fixed-wing, single engine Co-owned owner
Texas
Standard 1996-09-10 ValidFAA registration status code V: Valid registration. All codes
N8584P Piper
PA-24-260
Fixed-wing, single engine Individual owner
South Dakota
Standard 1996-08-23 ValidFAA registration status code V: Valid registration. All codes
N676SA Piper
PA-31-325
Fixed-wing, multi-engine Vincennes University
Indianapolis, Indiana
Standard 1996-08-12 ValidFAA registration status code V: Valid registration. All codes
N109FC Piper
PA-31-325
Fixed-wing, multi-engine Usda Forest Service Fepp
Tallahassee, Florida
Standard 1996-08-08 ValidFAA registration status code V: Valid registration. All codes
N681AT Piper
PA-32-300
Fixed-wing, single engine Individual owner
Connecticut
Standard 1996-07-24 ValidFAA registration status code V: Valid registration. All codes
N127KH Aero Commander
500-B
Fixed-wing, multi-engine Central Airlines INC
Leawood, Kansas
Standard 1996-07-18 ValidFAA registration status code V: Valid registration. All codes
N5714Y Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Oklahoma
Standard 1996-06-21 ValidFAA registration status code V: Valid registration. All codes
N30TP Piper
PA-31-350
Fixed-wing, multi-engine Le Ciel Bleu LLC
Hudson, Wisconsin
Standard 1996-06-11 ValidFAA registration status code V: Valid registration. All codes
N75014 Piper
PA-32R-300
Fixed-wing, single engine Hammonds Hangars INC
Wilmington, Delaware
Standard 1996-06-06 ValidFAA registration status code V: Valid registration. All codes
N39603 Piper
PA-32RT-300T
Fixed-wing, single engine Individual owner
North Dakota
Standard 1996-06-05 ValidFAA registration status code V: Valid registration. All codes
N872JW Bellanca
17-31A
Fixed-wing, single engine Co-owned owner
Ohio
Standard 1996-05-28 ValidFAA registration status code V: Valid registration. All codes
N6052Y Piper
PA-23-250
Fixed-wing, multi-engine Central Kentucky Aviation INC
Bardstown, Kentucky
Standard 1996-05-07 ValidFAA registration status code V: Valid registration. All codes
N20GF Socata
TB21
Fixed-wing, single engine Co-owned owner
California
Standard 1996-04-10 ValidFAA registration status code V: Valid registration. All codes
N82173 Piper
PA-32R-301T
Fixed-wing, single engine Co-owned owner
California
Standard 1996-04-01 ValidFAA registration status code V: Valid registration. All codes
N9344P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Maryland
Standard 1996-03-28 ValidFAA registration status code V: Valid registration. All codes
N8194E Piper
PA-32-301T
Fixed-wing, single engine Bill W Chu INC
Madera, California
Standard 1996-03-21 ValidFAA registration status code V: Valid registration. All codes
N1851A Piper
PA-31-310
Fixed-wing, multi-engine Placer County Sheriffs Department
Auburn, California
Standard 1996-03-12 ValidFAA registration status code V: Valid registration. All codes
N601EM Smith
AEROSTAR 601P
Fixed-wing, multi-engine Valestin Donald P
Queen Creek, Arizona
Standard 1996-01-26 ValidFAA registration status code V: Valid registration. All codes
N301CA Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Arizona
Standard 1996-01-02 ValidFAA registration status code V: Valid registration. All codes
N7978P Piper
PA-24-250
Fixed-wing, single engine Kozak Aeronautical Company
Wilmington, Delaware
Standard 1995-11-29 ValidFAA registration status code V: Valid registration. All codes
N58RD Aerofab Inc
LAKE 250
Fixed-wing, single engine Co-owned owner
Alaska
Standard 1995-11-01 ValidFAA registration status code V: Valid registration. All codes
N2157N Piper
PA-32RT-300T
Fixed-wing, single engine C A R S Sales INC
Denver, North Carolina
Standard 1995-10-27 ValidFAA registration status code V: Valid registration. All codes
N8732P Piper
PA-24-260
Fixed-wing, single engine Comanche Aviation INC
North Bend, Ohio
Standard 1995-10-16 ValidFAA registration status code V: Valid registration. All codes
N49RD Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Michigan
Standard 1995-10-10 ValidFAA registration status code V: Valid registration. All codes
N121SL Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Georgia
Standard 1995-10-04 ValidFAA registration status code V: Valid registration. All codes
N63693 Piper
PA-31-310
Fixed-wing, multi-engine Budd Aircraft Enterprises INC
Chesterfield, Missouri
Standard 1995-09-22 ValidFAA registration status code V: Valid registration. All codes
N999HJ Mooney
M20M
Fixed-wing, single engine Individual owner
California
Standard 1995-08-30 ValidFAA registration status code V: Valid registration. All codes
N2297Q Piper
PA-32R-300
Fixed-wing, single engine Fact Ware INC
Newtown, Pennsylvania
Standard 1995-08-29 ValidFAA registration status code V: Valid registration. All codes
N7XA Piper
PA-32R-301T
Fixed-wing, single engine Cine Aviation INC
W Bloomfield, Michigan
Standard 1995-08-14 ValidFAA registration status code V: Valid registration. All codes
N1088M Mooney
M20M
Fixed-wing, single engine Individual owner
Texas
Standard 1995-08-12 ValidFAA registration status code V: Valid registration. All codes
N614HM Smith
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
California
Standard 1995-07-20 ValidFAA registration status code V: Valid registration. All codes
N3556X Piper
PA-31-310
Fixed-wing, multi-engine West Bend Air INC
West Bend, Wisconsin
Standard 1995-07-07 ValidFAA registration status code V: Valid registration. All codes
N6631F Piper
PA-32R-300
Fixed-wing, single engine Yah INC
Wilmington, Delaware
Standard 1995-06-27 ValidFAA registration status code V: Valid registration. All codes
N7998V Aero Commander
CALLAIR A-9B
Fixed-wing, single engine Individual owner
Arizona
Restricted 1995-06-15 ValidFAA registration status code V: Valid registration. All codes
N14224 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Florida
Standard 1995-06-13 ValidFAA registration status code V: Valid registration. All codes
N4233R Piper
PA-32-300
Fixed-wing, single engine 33 Romeo INC
Wilmington, Delaware
Standard 1995-04-21 ValidFAA registration status code V: Valid registration. All codes
N85DL Piper
PA-31-310
Fixed-wing, multi-engine Delta Lima INC
Justice, West Virginia
Standard 1995-04-06 ValidFAA registration status code V: Valid registration. All codes
N7716P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 1995-03-31 ValidFAA registration status code V: Valid registration. All codes
N324RR Aero Commander
500-B
Fixed-wing, multi-engine Central Airlines INC
Leawood, Kansas
Standard 1995-03-27 ValidFAA registration status code V: Valid registration. All codes
N22117 Piper
PA-32RT-300T
Fixed-wing, single engine Individual owner
Colorado
Standard 1995-03-16 ValidFAA registration status code V: Valid registration. All codes
N8221P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Texas
Standard 1995-02-22 ValidFAA registration status code V: Valid registration. All codes
N7599L Piper
PA-31-310
Fixed-wing, multi-engine Aviation Pursuits INC
Carrollton, Georgia
Standard 1995-01-30 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.