The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming AEIO-540 series

434 aircraft on the U.S. register carry a Lycoming AEIO-540 series engine, rated at about 260 horsepower. The Extra Flugzeugbau Gmbh EA-300 is the model most often fitted with it (112 aircraft). The aircraft carrying it were built between 1977 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 AEIO-540 series. FAA spelling: AEIO-540 SER.

Fitted to model families

Extra Flugzeugbau Gmbh EA-300112Aviat Inc PITTS S-2B69Christen Industries Inc PITTS S-2B53Aviat Aircraft Inc S-244Pitts Aerobatics S-219Aerotek Inc PITTS S-2B13Zivko Aeronautics Inc EDGE 54012Aviat Aircraft Inc PITTS S-2B9Extra Flugzeugbau EA 3007Mx Aircraft Co MXS4Mxr Technologies Inc MXS4Grob-Werke G 120A3

Extra Flugzeugbau Gmbh EA-300 · Aviat Inc PITTS S-2B · Christen Industries Inc PITTS S-2B · Aviat Aircraft Inc S-2 · Pitts Aerobatics S-2 · Aerotek Inc PITTS S-2B · Zivko Aeronautics Inc EDGE 540 · Aviat Aircraft Inc PITTS S-2B · Extra Flugzeugbau EA 300 · Mx Aircraft Co MXS

Where they are owner's state

California51Texas35Florida31Delaware28Arizona19Georgia18Oregon13Colorado13Wyoming12Montana12

Kind of aircraft

Piston singles431 (99%)Piston twins3 (0.7%)

When the aircraft were built by decade

047941401871195011960219707119801871990972000122010102020

Connections how this engine series links to the rest of the register

Fitted to
Where they are
Biggest operators

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

Aircraft newest certificates first · 434

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N312JT Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Standard 2026-10-01 ValidFAA registration status code V: Valid registration. All codes
N974 Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Texas
Standard 2026-09-07 ValidFAA registration status code V: Valid registration. All codes
N1326K Aviat Inc
PITTS S-2B
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2026-08-14 ValidFAA registration status code V: Valid registration. All codes
N13PR Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Individual owner
Texas
Standard 2026-07-26 ValidFAA registration status code V: Valid registration. All codes
N864AF Grob-Werke
G 120A
Fixed-wing, single engine Lufthansa Aviation Training USA INC
Goodyear, Arizona
Standard 2026-07-22 ValidFAA registration status code V: Valid registration. All codes
N24FF Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Indiana
Standard 2026-07-08 ValidFAA registration status code V: Valid registration. All codes
N111XT Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Patch Aero LLC
Boca Raton, Florida
Standard 2026-06-30 ValidFAA registration status code V: Valid registration. All codes
N207X Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Individual owner
Florida
Standard 2026-06-26 ValidFAA registration status code V: Valid registration. All codes
N50EX Extra Flugzeugbau Gmbh
EA-300
Fixed-wing, single engine Bob Hoover Academy
Salinas, California
Standard 2026-06-26 ValidFAA registration status code V: Valid registration. All codes
N315SM Socata
TB 30 EPSILON
Fixed-wing, single engine Le Petit Oiseau LLC
Englewood, Colorado
Experimental 2026-06-21 ValidFAA registration status code V: Valid registration. All codes
N867AF Grob-Werke
G 120A
Fixed-wing, single engine Lufthansa Aviation Training USA INC
Goodyear, Arizona
Standard 2026-06-18 ValidFAA registration status code V: Valid registration. All codes
N340MC Michael Victor Conrardy
PITTS S1-11B
Fixed-wing, single engine Individual owner
California
Experimental 2026-06-08 ValidFAA registration status code V: Valid registration. All codes
N865AF Grob-Werke
G 120A
Fixed-wing, single engine Lufthansa Aviation Training USA INC
Goodyear, Arizona
Standard 2026-06-03 ValidFAA registration status code V: Valid registration. All codes
N777YZ Moravan N P Otrokovice
Z-50L
Fixed-wing, single engine Sky West Aviation INC Trustee
Albuquerque, New Mexico
Experimental 2026-06-01 ValidFAA registration status code V: Valid registration. All codes
N91PJ Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Co-owned owner
Arizona
Standard 2026-05-22 ValidFAA registration status code V: Valid registration. All codes
N323CW Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Acorn Aerobatics LLC
Muskego, Wisconsin
Standard 2026-05-21 ValidFAA registration status code V: Valid registration. All codes
N9YH Aviat Aircraft Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
California
Standard 2026-05-17 ValidFAA registration status code V: Valid registration. All codes
N264EX Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Full Circle Aero LLC
Wilmington, Delaware
Standard 2026-05-16 ValidFAA registration status code V: Valid registration. All codes
N8UB Eight Alpha Charlie Corp
ULTIMATE 20-300S
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Experimental 2026-05-08 ValidFAA registration status code V: Valid registration. All codes
N577GT Mx Aircraft Co
MXS
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Experimental 2026-04-23 ValidFAA registration status code V: Valid registration. All codes
N250BD Piper
PA-23-250
Fixed-wing, multi-engine Co-owned owner
Maine
Standard 2026-04-08 ValidFAA registration status code V: Valid registration. All codes
N303FF Mx Aircraft Co
MXS
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Experimental 2026-04-07 ValidFAA registration status code V: Valid registration. All codes
N69PU Aerotek Inc
PITTS S-2B
Fixed-wing, single engine Non-citizen co-owned owner
Florida
Standard 2026-03-12 ValidFAA registration status code V: Valid registration. All codes
N183EX Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Flying W Leasing INC
Bartlett, Illinois
Standard 2026-03-06 ValidFAA registration status code V: Valid registration. All codes
N4767 Zivko Aeronautics Inc
EDGE 540
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Experimental 2026-02-26 ValidFAA registration status code V: Valid registration. All codes
N260EP Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Gastons White River Resort INC
Lakeview, Arkansas
Standard 2026-02-23 ValidFAA registration status code V: Valid registration. All codes
N540HA Zivko Aeronautics Inc
EDGE 540
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Experimental 2026-02-20 ValidFAA registration status code V: Valid registration. All codes
N540MX Mxr Technologies Inc
MX2
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Experimental 2026-02-20 ValidFAA registration status code V: Valid registration. All codes
N6083U Aviat Inc
A-1
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Standard 2026-02-20 ValidFAA registration status code V: Valid registration. All codes
N722X Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine 6 7 Holding LLC
Kalispell, Montana
Standard 2026-02-15 ValidFAA registration status code V: Valid registration. All codes
N531RM Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Standard 2026-02-14 ValidFAA registration status code V: Valid registration. All codes
N540TA Zivko Aeronautics Inc
EDGE 540-T
Fixed-wing, single engine Kenmore Crew Leasing INC Trustee
Bellingham, Washington
Experimental 2026-02-13 ValidFAA registration status code V: Valid registration. All codes
N245JH Aviat Inc
PITTS S-2B
Fixed-wing, single engine Southern Aircraft Consultancy INC Trustee
Casper, Wyoming
Standard 2026-02-06 ValidFAA registration status code V: Valid registration. All codes
N540BM Zivko Aeronautics Inc
EDGE 540
Fixed-wing, single engine International Air Services INC Trustee
Carson City, Nevada
Experimental 2026-01-21 ValidFAA registration status code V: Valid registration. All codes
N94TW Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Cactus Skybolt Aviation LLC
Athens, Alabama
Standard 2025-12-09 ValidFAA registration status code V: Valid registration. All codes
N12CK Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Oregon
Standard 2025-11-21 ValidFAA registration status code V: Valid registration. All codes
N444TM Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Aviation Performance Solutions LLC
Mesa, Arizona
Standard 2025-11-18 ValidFAA registration status code V: Valid registration. All codes
N92717 Piper
PA 46-350P
Fixed-wing, single engine Hold Fast Property LLC
Alto, New Mexico
Standard 2025-11-07 ValidFAA registration status code V: Valid registration. All codes
N56PS Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Hawaii
Standard 2025-11-05 ValidFAA registration status code V: Valid registration. All codes
N84PS Pitts Aerobatics
S-2B
Fixed-wing, single engine Valiair Lc Trustee
Casper, Wyoming
Standard 2025-11-05 ValidFAA registration status code V: Valid registration. All codes
N1010X Mx Aircraft Co
MXS
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2025-10-24 ValidFAA registration status code V: Valid registration. All codes
N771MA Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Lucky Dog Air LLC
Edmond, Oklahoma
Experimental 2025-10-17 ValidFAA registration status code V: Valid registration. All codes
N24GA Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Vehicle Holdings INC
Las Cruces, New Mexico
Standard 2025-10-15 ValidFAA registration status code V: Valid registration. All codes
N41PS Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Individual owner
Ohio
Standard 2025-10-13 ValidFAA registration status code V: Valid registration. All codes
N161JH Aviat Inc
PITTS S-2B
Fixed-wing, single engine Co-owned owner
California
Standard 2025-09-30 ValidFAA registration status code V: Valid registration. All codes
N87WY Pitts Aerobatics
S-2B
Fixed-wing, single engine Individual owner
Virginia
Standard 2025-09-25 ValidFAA registration status code V: Valid registration. All codes
N988RB Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Aslesen Leasin LLC
Halstad, Minnesota
Standard 2025-09-23 ValidFAA registration status code V: Valid registration. All codes
N105JP Pitts Aerobatics
S-2B
Fixed-wing, single engine Pittman Discover Flight LLC
Oshkosh, Wisconsin
Standard 2025-09-19 ValidFAA registration status code V: Valid registration. All codes
N423JD Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Albert Hall CO LLC
Shreveport, Louisiana
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N98TS Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Beta Fleet LLC
South Burlington, Vermont
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N323CK Meadows Denny
SKYBOLT
Fixed-wing, single engine Individual owner
Florida
Experimental 2025-08-21 ValidFAA registration status code V: Valid registration. All codes
N396PW Daily Pat O
STAUDACHER S-300
Fixed-wing, single engine Individual owner
Oregon
Experimental 2025-08-20 ValidFAA registration status code V: Valid registration. All codes
N92TP Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
North Carolina
Standard 2025-08-11 ValidFAA registration status code V: Valid registration. All codes
N74LS Aviat Inc
PITTS S-2B
Fixed-wing, single engine Aerodyne Industires CORP
Elburn, Illinois
Standard 2025-08-04 ValidFAA registration status code V: Valid registration. All codes
N721MD Zivko Aeronautics Inc
EDGE 540
Fixed-wing, single engine Qualitair LLC Trustee
Michelstadt,
Experimental 2025-07-22 ValidFAA registration status code V: Valid registration. All codes
N13ZE Entz Michael A
REBEL-EDGE
Fixed-wing, single engine Redge Akro LLC
Hampshire, Illinois
Experimental 2025-07-21 ValidFAA registration status code V: Valid registration. All codes
N9070G David A Beckett
S1-11
Fixed-wing, single engine Co-owned owner
Texas
Experimental 2025-07-08 ValidFAA registration status code V: Valid registration. All codes
N590RZ Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Washington
Standard 2025-07-07 ValidFAA registration status code V: Valid registration. All codes
N99MF Pitts
S-2S
Fixed-wing, single engine Welkin Aero INC
Garden Plain, Kansas
Experimental 2025-07-02 ValidFAA registration status code V: Valid registration. All codes
N747CJ Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Dch Consulting LLC
Grants Pass, Oregon
Standard 2025-06-25 ValidFAA registration status code V: Valid registration. All codes
N333MD Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Individual owner
Florida
Standard 2025-06-09 ValidFAA registration status code V: Valid registration. All codes
N911WM Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Aviation Trust Company LLC Trustee
Oklahoma City, Oklahoma
Standard 2025-05-28 ValidFAA registration status code V: Valid registration. All codes
N64LB Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Thermal Research CORP
Pensacola, Florida
Standard 2025-05-20 ValidFAA registration status code V: Valid registration. All codes
N716GW Ward Gary P
MX2
Fixed-wing, single engine Individual owner
Virginia
Experimental 2025-05-20 ValidFAA registration status code V: Valid registration. All codes
N7RN Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Afs Aero LLC
Kalispell, Montana
Standard 2025-05-19 ValidFAA registration status code V: Valid registration. All codes
N931 Aviat Inc
PITTS S-2B
Fixed-wing, single engine Withheld at owner's request
Standard 2025-05-15 ValidFAA registration status code V: Valid registration. All codes
N9494R Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Big Squirrelly LLC
Kalispell, Montana
Experimental 2025-05-15 ValidFAA registration status code V: Valid registration. All codes
N19FC Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Withheld at owner's request
Standard 2025-05-06 ValidFAA registration status code V: Valid registration. All codes
N71PB Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Progression Aviation LLC
Alpharetta, Georgia
Standard 2025-04-18 ValidFAA registration status code V: Valid registration. All codes
N92BT Aviat Inc
PITTS S-2B
Fixed-wing, single engine Unadventurous LLC
Amarillo, Texas
Standard 2025-04-17 ValidFAA registration status code V: Valid registration. All codes
N713HB Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine B&B Aerosports LLC
Maryville, Tennessee
Standard 2025-04-01 ValidFAA registration status code V: Valid registration. All codes
N57SD Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Individual owner
Maine
Standard 2025-03-28 ValidFAA registration status code V: Valid registration. All codes
N79AV Pitts Aerobatics
S-2B
Fixed-wing, single engine Withheld at owner's request
Standard 2025-03-27 ValidFAA registration status code V: Valid registration. All codes
N166 Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Vertical Works East LLC
Brielle, New Jersey
Standard 2025-01-28 ValidFAA registration status code V: Valid registration. All codes
N411PS Aviat Aircraft Inc
S-2C
Fixed-wing, single engine 4D Aerosports INC
Wilmington, Delaware
Standard 2025-01-28 ValidFAA registration status code V: Valid registration. All codes
N540TR Loeber A W
TEAM ROCKET F-1
Fixed-wing, single engine 222 Aviation LLC
Oakhurst, California
Experimental 2025-01-15 ValidFAA registration status code V: Valid registration. All codes
N999BN Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Idaho
Standard 2024-12-23 ValidFAA registration status code V: Valid registration. All codes
N177PS Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Co-owned owner
North Carolina
Standard 2024-12-20 ValidFAA registration status code V: Valid registration. All codes
N540BF Zivko Aeronautics Inc
EDGE 540 RXP
Fixed-wing, single engine Co-owned owner
Iowa
Experimental 2024-11-26 ValidFAA registration status code V: Valid registration. All codes
N815C Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Hawaii Soaring LLC
Kailua, Hawaii
Standard 2024-11-25 ValidFAA registration status code V: Valid registration. All codes
N997AC Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Redemption Air Academy LLC
Huntsville, Texas
Standard 2024-11-09 ValidFAA registration status code V: Valid registration. All codes
N169DM Aviat Inc
PITTS S-2B
Fixed-wing, single engine Most Toys Wins LLC
Joliet, Illinois
Standard 2024-11-05 ValidFAA registration status code V: Valid registration. All codes
N911NB Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Peeler Aviation
Eads, Tennessee
Standard 2024-10-31 ValidFAA registration status code V: Valid registration. All codes
N260JP Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Ohio
Standard 2024-10-29 ValidFAA registration status code V: Valid registration. All codes
N300UP Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Neo Terra Aviation LLC
Setauket, New York
Standard 2024-10-29 ValidFAA registration status code V: Valid registration. All codes
N48AS Sky International Inc
S-2C
Fixed-wing, single engine Individual owner
California
Standard 2024-10-28 ValidFAA registration status code V: Valid registration. All codes
N981MM Hankins Jimmy G
GLASAIR III
Fixed-wing, single engine Individual owner
New Hampshire
Experimental 2024-10-10 ValidFAA registration status code V: Valid registration. All codes
N301NL Extra Flugzeugbau Gmbh
EA-300
Fixed-wing, single engine Hammerhead Holdings LLC
Manassas, Virginia
Standard 2024-10-08 ValidFAA registration status code V: Valid registration. All codes
N7EH Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
California
Standard 2024-09-24 ValidFAA registration status code V: Valid registration. All codes
N80LF Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Aeromarine Holdings LLC
Waukesha, Wisconsin
Standard 2024-09-17 ValidFAA registration status code V: Valid registration. All codes
N129SJ Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Working Capital Group LLC
Rogers, Arkansas
Standard 2024-09-16 ValidFAA registration status code V: Valid registration. All codes
N3VG Christen Industries Inc
PITTS S-2B
Fixed-wing, single engine Inverted Aero LLC
Spring Hill, Florida
Standard 2024-08-19 ValidFAA registration status code V: Valid registration. All codes
N787PD Aviat Inc
PITTS S-2B
Fixed-wing, single engine Individual owner
Pennsylvania
Standard 2024-07-30 ValidFAA registration status code V: Valid registration. All codes
N9EX Extra Flugzeugbau Gmbh
EA 300/L
Fixed-wing, single engine Sln Aviation LLC
Salina, Kansas
Standard 2024-07-26 ValidFAA registration status code V: Valid registration. All codes
N153GM Aviat Inc
PITTS S-2B
Fixed-wing, single engine Fly High Aviation LLC
Melrose Park, Illinois
Standard 2024-06-17 ValidFAA registration status code V: Valid registration. All codes
N1AN Pitts Aerobatics
S-2B
Fixed-wing, single engine Individual owner
North Carolina
Standard 2024-06-10 ValidFAA registration status code V: Valid registration. All codes
N61PS Aviat Inc
PITTS S-2B
Fixed-wing, single engine Pitts Rock and Roll INC Trustee
Wilmington, Delaware
Standard 2024-05-31 ValidFAA registration status code V: Valid registration. All codes
N1191 Aviat Inc
PITTS S-2B
Fixed-wing, single engine Co-owned owner
California
Standard 2024-05-21 ValidFAA registration status code V: Valid registration. All codes
N2UQ Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Individual owner
Texas
Standard 2024-05-01 ValidFAA registration status code V: Valid registration. All codes
N385BF Aviat Aircraft Inc
S-2C
Fixed-wing, single engine Individual owner
New Jersey
Standard 2024-04-25 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 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.