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
What the FAA has certified, ordered and been told about the Lycoming AEIO-540 series the component layer
No FAA order in the current files names this engine series. Operators and repair shops have filed 150 failure reports with the FAA since 1995, 4 of them in the last ten years.
Failure reports 150 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Pump17Washer10Ignition Switch8Lever5Switch5Actuator4Baffle4Bearing4Bracket4Servo4
Latest reports
2026-08-13Servo: faulted
2026-05-09Thrust Button: melted
2019-06-11Inertia Reel: inoperative
2019-02-08Buckle: broken
2016-03-03Tension Spring: stiff
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
- Extra Flugzeugbau Gmbh EA-300 112 with this engine series
- Aviat Inc PITTS S-2B 69 with this engine series
- Christen Industries Inc PITTS S-2B 53 with this engine series
- Aviat Aircraft Inc S-2 44 with this engine series
- Pitts Aerobatics S-2 19 with this engine series
- Aerotek Inc PITTS S-2B 13 with this engine series
- Zivko Aeronautics Inc EDGE 540 12 with this engine series
- Aviat Aircraft Inc PITTS S-2B 9 with this engine series
Where they are
- California 51 of these aircraft
- Texas 35 of these aircraft
- Florida 31 of these aircraft
- Delaware 28 of these aircraft
- Arizona 19 of these aircraft
Biggest operators
- Southern Aircraft Consultancy INC Trustee 6 of these aircraft
- Plane Fun INC Tr Trustee 5 of these aircraft
- International Air Services INC Trustee 5 of these aircraft
- Lufthansa Aviation Training USA INC 3 of these aircraft
- Eastern Stearman INC Trustee 3 of these aircraft
Airworthiness
- Failure reports on the Lycoming AEIO-540 series 150 reports since 1995
Analytics
These connections as data: /graph/engine/lycoming-aeio-540-series.json · about the eFlight graph.
Aircraft newest certificates first · 434
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N260EF | Pitts Aerobatics S-2B |
Fixed-wing, single engine | Individual owner New York |
Standard | 1999-01-14 | ValidFAA registration status code V: Valid registration. All codes |
| N272AF | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Pennsylvania |
Standard | 1998-10-27 | ValidFAA registration status code V: Valid registration. All codes |
| N711SF | Aviat Aircraft Inc PITTS S-2B |
Fixed-wing, single engine | Flying L Aircraft INC Fort Denaud, Florida |
Standard | 1998-10-24 | ValidFAA registration status code V: Valid registration. All codes |
| N916 | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Co-owned owner Texas |
Standard | 1998-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N812BL | Aviat Aircraft Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 1998-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N6235Z | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Missouri |
Standard | 1997-08-23 | ValidFAA registration status code V: Valid registration. All codes |
| N255PS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Nebraska |
Standard | 1997-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N488MA | Anderson Mike PHOENIX X1A |
Fixed-wing, single engine | Individual owner California |
Experimental | 1997-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N3434F | Avions Mudry Cie CAP 231 |
Fixed-wing, single engine | Individual owner Georgia |
Experimental | 1997-03-10 | ValidFAA registration status code V: Valid registration. All codes |
| N933ST | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Saratina INC Calhoun, Georgia |
Standard | 1997-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N169M | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 1996-11-26 | ValidFAA registration status code V: Valid registration. All codes |
| N419JR | American Champion Aircraft 8KCAB |
Fixed-wing, single engine | Raf LLC Lenexa, Kansas |
Standard | 1996-11-19 | ValidFAA registration status code V: Valid registration. All codes |
| N237H | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 1996-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N494BE | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Big Ego Aerobatics INC Naperville, Illinois |
Standard | 1996-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N87NH | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 1995-09-08 | ValidFAA registration status code V: Valid registration. All codes |
| N6082U | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Wifferdill INC Palm Bay, Florida |
Standard | 1995-05-16 | ValidFAA registration status code V: Valid registration. All codes |
| N397DC | Clark James D PATRIOT 300 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 1995-03-29 | ValidFAA registration status code V: Valid registration. All codes |
| N409FD | Siai Marchetti F.260C |
Fixed-wing, single engine | South Seas Aviation LTD Wilmington, Delaware |
Standard | 1994-11-14 | ValidFAA registration status code V: Valid registration. All codes |
| N846 | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Co-owned owner Delaware |
Standard | 1994-07-13 | ValidFAA registration status code V: Valid registration. All codes |
| N260LS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner New York |
Standard | 1994-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N260PR | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Plane Enterprises INC Martin, Tennessee |
Standard | 1992-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N76K | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner California |
Standard | 1991-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6077C | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner California |
Standard | 1990-02-05 | ValidFAA registration status code V: Valid registration. All codes |
| N440BB | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 1989-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N67FD | Siai Marchetti F.260C |
Fixed-wing, single engine | Dragon Leasing CORP Naperville, Illinois |
Standard | 1987-07-30 | ValidFAA registration status code V: Valid registration. All codes |
| N224D | Extra Flugzeugbau Gmbh EA 300/L |
Fixed-wing, single engine | Individual owner Nevada |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N260PS | Aviat Inc PITTS S-2B |
Fixed-wing, single engine | Bulldawg LLC Byers, Colorado |
Standard | ValidFAA registration status code V: Valid registration. All codes | |
| N300XA | Extra Flugzeugbau Gmbh EA-300 |
Fixed-wing, single engine | Individual owner Nevada |
Experimental | Sale reportedFAA registration status code 7. All codes | |
| N340BF | Aviat Aircraft Inc S-2C |
Fixed-wing, single engine | Individual owner California |
Standard | Pending cancellationFAA registration status code 19: Registration pending, pending cancellation. All codes | |
| N5329G | Pitts Aerobatics S-2B |
Fixed-wing, single engine | Individual owner Wyoming |
Standard | Sale reportedFAA registration status code 17: Sale reported, pending cancellation. All codes | |
| N540XX | Mxr Technologies Inc MXS |
Fixed-wing, single engine | Individual owner Arizona |
Experimental | PendingFAA registration status code R: Registration pending. All codes | |
| N687BC | Mcilraith Glen SH-3R |
Fixed-wing, single engine | Individual owner Oregon |
Experimental | Pending cancellationFAA registration status code 19: Registration pending, pending cancellation. All codes | |
| N77TW | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Individual owner California |
Standard | Sale reportedFAA registration status code 7. All codes | |
| N88EW | Christen Industries Inc PITTS S-2B |
Fixed-wing, single engine | Aviat Aircraft INC Afton, Wyoming |
Standard | 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.