The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 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

These connections as data: /graph/engine/lycoming-tio-540-series.json · about the eFlight graph.

Aircraft newest certificates first · 5,079

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N66177 Cessna
T182T
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2018-01-08 ValidFAA registration status code V: Valid registration. All codes
N72608 Cessna
T206H
Fixed-wing, single engine Gv Air INC
Medford, Oregon
Standard 2018-01-08 ValidFAA registration status code V: Valid registration. All codes
N9050P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Oregon
Standard 2018-01-04 ValidFAA registration status code V: Valid registration. All codes
N159B Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Kansas
Standard 2018-01-03 ValidFAA registration status code V: Valid registration. All codes
N2182V Piper
PA-32RT-300T
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2018-01-02 ValidFAA registration status code V: Valid registration. All codes
N8540F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Arkansas
Standard 2018-01-02 ValidFAA registration status code V: Valid registration. All codes
N2220J Piper
PA-32-300
Fixed-wing, single engine Trj Aero Holdings LLC
Tequesta, Florida
Standard 2017-12-29 ValidFAA registration status code V: Valid registration. All codes
N9144C Mooney
M20M
Fixed-wing, single engine Hjh INC
Wichita, Kansas
Standard 2017-12-28 ValidFAA registration status code V: Valid registration. All codes
N6953J Piper
PA-32R-300
Fixed-wing, single engine Co-owned owner
Mississippi
Standard 2017-12-27 ValidFAA registration status code V: Valid registration. All codes
N4137F Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Florida
Standard 2017-12-26 ValidFAA registration status code V: Valid registration. All codes
N455MA Piper
PA-32R-301T
Fixed-wing, single engine B & D Aviation LLC
Jackson, Mississippi
Standard 2017-12-21 ValidFAA registration status code V: Valid registration. All codes
N765 Smith
AEROSTAR 601P
Fixed-wing, multi-engine Moby Partnership
Albuquerque, New Mexico
Standard 2017-12-20 ValidFAA registration status code V: Valid registration. All codes
N4151P Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
California
Standard 2017-12-18 ValidFAA registration status code V: Valid registration. All codes
N8535E Piper
PA-32R-300
Fixed-wing, single engine American Compressor Flight INC
Santa Fe Springs, California
Standard 2017-12-18 ValidFAA registration status code V: Valid registration. All codes
N216SB Cessna
T206H
Fixed-wing, single engine Individual owner
Nevada
Standard 2017-12-14 ValidFAA registration status code V: Valid registration. All codes
N5YG Piper
PA 46-350P
Fixed-wing, single engine Sethjay LLC
Washington, District of Columbia
Standard 2017-12-13 ValidFAA registration status code V: Valid registration. All codes
N63885 Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Florida
Standard 2017-12-13 ValidFAA registration status code V: Valid registration. All codes
N500LC Piper
PA-23-250
Fixed-wing, multi-engine Csc Delaware Trust CO Trustee
Wilmington, Delaware
Standard 2017-12-08 ValidFAA registration status code V: Valid registration. All codes
N3054H Piper
PA-32RT-300T
Fixed-wing, single engine Economy Supply INC
Oilton, Oklahoma
Standard 2017-12-07 ValidFAA registration status code V: Valid registration. All codes
N8793P Piper
PA-24-260
Fixed-wing, single engine Individual owner
North Dakota
Standard 2017-12-07 ValidFAA registration status code V: Valid registration. All codes
N424SB Mooney
M20M
Fixed-wing, single engine Bsi Technologies II INC
Richmond, Virginia
Standard 2017-12-05 ValidFAA registration status code V: Valid registration. All codes
N456TB Socata
TB21
Fixed-wing, single engine Individual owner
Texas
Standard 2017-12-05 ValidFAA registration status code V: Valid registration. All codes
N5209P Cessna
T182T
Fixed-wing, single engine Individual owner
Iowa
Standard 2017-12-04 ValidFAA registration status code V: Valid registration. All codes
N39851 Bellanca
17-31A
Fixed-wing, single engine Individual owner
Missouri
Standard 2017-11-30 ValidFAA registration status code V: Valid registration. All codes
N50BF Piper
PA 46-350P
Fixed-wing, single engine Individual owner
California
Standard 2017-11-30 ValidFAA registration status code V: Valid registration. All codes
N39506 Piper
PA-32RT-300T
Fixed-wing, single engine Co-owned owner
Kentucky
Standard 2017-11-27 ValidFAA registration status code V: Valid registration. All codes
N9294P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Colorado
Standard 2017-11-27 ValidFAA registration status code V: Valid registration. All codes
N2237S Cessna
T182T
Fixed-wing, single engine Oregon State Police
Salem, Oregon
Standard 2017-11-20 ValidFAA registration status code V: Valid registration. All codes
N6121A Commander Aircraft Co
114TC
Fixed-wing, single engine Michael Lancy Architect INC
Glendora, California
Standard 2017-11-20 ValidFAA registration status code V: Valid registration. All codes
N2138F Piper
PA-32RT-300T
Fixed-wing, single engine Individual owner
Texas
Standard 2017-11-16 ValidFAA registration status code V: Valid registration. All codes
N8065J Piper
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
California
Standard 2017-11-14 ValidFAA registration status code V: Valid registration. All codes
N888LM Piper
PA-31-350
Fixed-wing, multi-engine Air Mods and Repair
Robbinsville, New Jersey
Standard 2017-11-14 ValidFAA registration status code V: Valid registration. All codes
N5369J Piper
PA32-301XTC
Fixed-wing, single engine Mjr Aviation LLC
Boulder Creek, California
Standard 2017-11-08 ValidFAA registration status code V: Valid registration. All codes
N2179M Cessna
T182T
Fixed-wing, single engine Individual owner
Florida
Standard 2017-11-07 ValidFAA registration status code V: Valid registration. All codes
N5431Y Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Florida
Standard 2017-11-07 ValidFAA registration status code V: Valid registration. All codes
N9396P Piper
PA-24-260
Fixed-wing, single engine Individual owner
Missouri
Standard 2017-11-06 ValidFAA registration status code V: Valid registration. All codes
N32CG Mooney
M20M
Fixed-wing, single engine Taylor Group Architects of California INC
Fresno, California
Standard 2017-11-03 ValidFAA registration status code V: Valid registration. All codes
N841AT Piper
PA-32R-301T
Fixed-wing, single engine Luxury Transportation LLC
Talladega, Alabama
Standard 2017-11-02 ValidFAA registration status code V: Valid registration. All codes
N6200D Cessna
T182T
Fixed-wing, single engine Individual owner
Montana
Standard 2017-11-01 ValidFAA registration status code V: Valid registration. All codes
N9227P Piper
PA-24-260
Fixed-wing, single engine Individual owner
California
Standard 2017-11-01 ValidFAA registration status code V: Valid registration. All codes
N34XT Piper
PA32-301XTC
Fixed-wing, single engine Gwk Aviation LLC
Fort Smith, Arkansas
Standard 2017-10-31 ValidFAA registration status code V: Valid registration. All codes
N494MB Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Texas
Standard 2017-10-31 ValidFAA registration status code V: Valid registration. All codes
N8551P Piper
PA-24-260
Fixed-wing, single engine Individual owner
North Dakota
Standard 2017-10-31 ValidFAA registration status code V: Valid registration. All codes
N59CA Aerofab Inc
LAKE 250
Fixed-wing, single engine
Standard 2017-10-30 ValidFAA registration status code V: Valid registration. All codes
N8422P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Illinois
Standard 2017-10-30 ValidFAA registration status code V: Valid registration. All codes
N921UN Cessna
T206H
Fixed-wing, single engine 921Un Ventures LLC
Mercer Island, Washington
Standard 2017-10-30 ValidFAA registration status code V: Valid registration. All codes
N4104K Piper
PA-31-350
Fixed-wing, multi-engine Star Marianas Aviation School INC
Tinian, Northern Mariana Islands
Restricted 2017-10-24 ValidFAA registration status code V: Valid registration. All codes
N617ET Piper
PA-32-300
Fixed-wing, single engine Individual owner
California
Standard 2017-10-24 ValidFAA registration status code V: Valid registration. All codes
N33556 Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Nebraska
Standard 2017-10-23 ValidFAA registration status code V: Valid registration. All codes
N6961J Piper
PA-32R-300
Fixed-wing, single engine Baja Airventures INC
Chula Vista, California
Standard 2017-10-23 ValidFAA registration status code V: Valid registration. All codes
N27989 Piper
PA-31-350
Fixed-wing, multi-engine Csc Delaware Trust CO Trustee
Wilmington, Delaware
Standard 2017-10-16 ValidFAA registration status code V: Valid registration. All codes
N68MW Piper
PA-23-250
Fixed-wing, multi-engine Csc Delaware Trust CO Trustee
Wilmington, Delaware
Restricted 2017-10-16 ValidFAA registration status code V: Valid registration. All codes
N18JM Piper
PA 46-350P
Fixed-wing, single engine Individual owner
Idaho
Standard 2017-10-13 ValidFAA registration status code V: Valid registration. All codes
N232TJ Cessna
T206H
Fixed-wing, single engine Csc Delaware Trust CO Trustee
Wilmington, Delaware
Standard 2017-10-11 ValidFAA registration status code V: Valid registration. All codes
N4003R Piper
PA-32-300
Fixed-wing, single engine Individual owner
Wisconsin
Standard 2017-10-11 ValidFAA registration status code V: Valid registration. All codes
N4174U Piper
PA-32R-301T
Fixed-wing, single engine Southern Siding and Window CORP
Augusta, Georgia
Standard 2017-10-11 ValidFAA registration status code V: Valid registration. All codes
N600RJ Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Tennessee
Standard 2017-10-05 ValidFAA registration status code V: Valid registration. All codes
N6527Y Piper
PA-23-250
Fixed-wing, multi-engine All Pro Electrical Contractors INC
Silsbee, Texas
Standard 2017-10-05 ValidFAA registration status code V: Valid registration. All codes
N703TB Socata
TB21
Fixed-wing, single engine Aircraft Guaranty CORP Trustee
Oklahoma City, Oklahoma
Standard 2017-10-04 ValidFAA registration status code V: Valid registration. All codes
N37RE Piper
PA-32R-300
Fixed-wing, single engine Giroux Aeronautical Company LLC
Fulton, New York
Standard 2017-10-02 ValidFAA registration status code V: Valid registration. All codes
N8829P Piper
PA-24-260
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2017-09-25 ValidFAA registration status code V: Valid registration. All codes
N3609Q Piper
PA-32R-300
Fixed-wing, single engine Northern Aviation LLC
Palmer, Alaska
Standard 2017-09-19 ValidFAA registration status code V: Valid registration. All codes
N4051W Piper
PA-32-300
Fixed-wing, single engine Co-owned owner
Colorado
Standard 2017-09-15 ValidFAA registration status code V: Valid registration. All codes
N767RJ Piper
PA-23-250
Fixed-wing, multi-engine S&S Aircraft INC
Bennington, Vermont
Standard 2017-09-14 ValidFAA registration status code V: Valid registration. All codes
N26H Helmetag Roy W
GLASSAIR III
Fixed-wing, single engine Individual owner
New York
Experimental 2017-09-12 ValidFAA registration status code V: Valid registration. All codes
N220RM Piper
PA-32RT-300T
Fixed-wing, single engine Co-owned owner
North Carolina
Standard 2017-09-07 ValidFAA registration status code V: Valid registration. All codes
N32998 Piper
PA-32-300
Fixed-wing, single engine Individual owner
Kentucky
Standard 2017-09-06 ValidFAA registration status code V: Valid registration. All codes
N3989X Piper
PA-32-300
Fixed-wing, single engine Individual owner
Tennessee
Standard 2017-09-01 ValidFAA registration status code V: Valid registration. All codes
N108NS Piper
PA-32R-300
Fixed-wing, single engine Individual owner
Alaska
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N131FA Piper
PA-23-250
Fixed-wing, multi-engine Individual owner
Guam
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N329SD Piper
PA-23-250
Fixed-wing, multi-engine Ace Flight Center INC
St Thomas, U.S. Virgin Islands
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N4168R Piper
PA-32-300
Fixed-wing, single engine Individual owner
Guam
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N4193W Piper
PA-32-300
Fixed-wing, single engine Individual owner
Montana
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N72FA Piper
PA-31-310
Fixed-wing, multi-engine Individual owner
Guam
Standard 2017-08-31 ValidFAA registration status code V: Valid registration. All codes
N711WZ Mooney
M20M
Fixed-wing, single engine Individual owner
Arizona
Standard 2017-08-30 ValidFAA registration status code V: Valid registration. All codes
N773HP Cessna
T206H
Fixed-wing, single engine Florida Highway Patrol
Tallahassee, Florida
Standard 2017-08-30 ValidFAA registration status code V: Valid registration. All codes
N9780Q Smith
AEROSTAR 601P
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2017-08-30 ValidFAA registration status code V: Valid registration. All codes
N6647Y Piper
PA-23-250
Fixed-wing, multi-engine Skyway INC
Wilmington, Delaware
Standard 2017-08-29 ValidFAA registration status code V: Valid registration. All codes
N482RP Rockwell International
114
Fixed-wing, single engine Individual owner
Illinois
Standard 2017-08-28 ValidFAA registration status code V: Valid registration. All codes
N5263T Piper
PA-32-300
Fixed-wing, single engine Backroads Aviation LLC
Holdrege, Nebraska
Standard 2017-08-28 ValidFAA registration status code V: Valid registration. All codes
N2153V Mooney
M20M
Fixed-wing, single engine Goro Sky Aircraft LLC
Lino Lakes, Minnesota
Standard 2017-08-25 ValidFAA registration status code V: Valid registration. All codes
N60CG Piper
PA-31-350
Fixed-wing, multi-engine Saj Aviation LLC
Reading, Pennsylvania
Standard 2017-08-25 ValidFAA registration status code V: Valid registration. All codes
N8047S Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
California
Standard 2017-08-25 ValidFAA registration status code V: Valid registration. All codes
N290M Piper
PA-23-250
Fixed-wing, multi-engine Surging Skyward INC
Newtown, Pennsylvania
Standard 2017-08-24 ValidFAA registration status code V: Valid registration. All codes
N15498 Piper
PA-32-300
Fixed-wing, single engine Universal Management and Mainteneance CO INC
Enid, Oklahoma
Standard 2017-08-23 ValidFAA registration status code V: Valid registration. All codes
N39673 Piper
PA-32RT-300T
Fixed-wing, single engine Co-owned owner
North Carolina
Standard 2017-08-22 ValidFAA registration status code V: Valid registration. All codes
N118ES Piper
PA-32R-300
Fixed-wing, single engine Cmv Aviation LLC
Johnson City, New York
Standard 2017-08-18 ValidFAA registration status code V: Valid registration. All codes
N5867P Piper
PA-24-250
Fixed-wing, single engine Individual owner
Michigan
Standard 2017-08-15 ValidFAA registration status code V: Valid registration. All codes
N4187Q Piper
PA-32R-301T
Fixed-wing, single engine Aggie80 Air LLC
Richmond, Texas
Standard 2017-08-14 ValidFAA registration status code V: Valid registration. All codes
N613SM Piper
PA-32R-301T
Fixed-wing, single engine Individual owner
Washington
Standard 2017-08-14 ValidFAA registration status code V: Valid registration. All codes
N575E Piper
PA-31-350
Fixed-wing, multi-engine Co-owned owner
Alaska
Standard 2017-08-11 ValidFAA registration status code V: Valid registration. All codes
N7139C Piper
PA-31-310
Fixed-wing, multi-engine Gv Air INC
Medford, Oregon
Standard 2017-08-09 ValidFAA registration status code V: Valid registration. All codes
N731W Piper
PA-24-260
Fixed-wing, single engine N64Gs LLC
Van Nuys, California
Standard 2017-08-09 ValidFAA registration status code V: Valid registration. All codes
N911DW Piper
PA-32R-301T
Fixed-wing, single engine Ocmulgee Outdoors INC
Hazlehurst, Georgia
Standard 2017-08-09 ValidFAA registration status code V: Valid registration. All codes
N9153Y Mooney
M20M
Fixed-wing, single engine Akn INC
Crystal, Minnesota
Standard 2017-08-09 ValidFAA registration status code V: Valid registration. All codes
N400KX Cessna
T182T
Fixed-wing, single engine Spritzair LLC
Durham, North Carolina
Standard 2017-08-08 ValidFAA registration status code V: Valid registration. All codes
N5938Y Piper
PA-23-250
Fixed-wing, multi-engine Fly for Fun Aircraft LLC
Rockville, Maryland
Standard 2017-08-03 ValidFAA registration status code V: Valid registration. All codes
N3941X Piper
PA-32-300
Fixed-wing, single engine Individual owner
Mississippi
Standard 2017-08-02 ValidFAA registration status code V: Valid registration. All codes
N280MB Rockwell International
500-S
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2017-08-01 ValidFAA registration status code V: Valid registration. All codes
N6588Y Piper
PA-23-250
Fixed-wing, multi-engine So Flipping Busy LLC
Apple Valley, Minnesota
Standard 2017-08-01 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.