Lycoming O-235
14 aircraft on the U.S. register carry a Lycoming O-235 engine, rated at about 115 horsepower. The Navmar Applied Sciences TEROS C is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1966 and 2025.
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 O-235. FAA spelling: O-235.
Fitted to model families
Navmar Applied Sciences TEROS C · Allen Mulderink/Todd Ripp HATZ · Champion 7 Citabria and Champ · David V Coscio LONG EZ/VARIEZE · Deboer D Dwight RUTAN LONG EZ · Douglass A Schmalzel STOL CH750 · Fletcher William Robert Jr VANS RV 3 · John P Corbett RUTAN LONG-EZ · Joseph D Herman ZODIAC 601XLB · Michael Leamy ZENITH 750 STOL
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming O-235 the component layer
The design is held under 1 type certificate (E-223, held by Lycoming Engines). The FAA has issued 12 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 84 failure reports with the FAA since 1995, 11 of them in the last ten years.
FAA orders 12 airworthiness directives · newest first
Failure reports 84 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
Certificates and bulletins
Safety bulletins 4 · advice, not orders
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
- Champion 7 Citabria and Champ 1 with this engine series
- Georgia 3 of these aircraft
- Wisconsin 1 of these aircraft
- Washington 1 of these aircraft
- Tennessee 1 of these aircraft
- Pennsylvania 1 of these aircraft
- Navmar Applied Sciences CORP 1 of these aircraft
- FAA orders naming the Lycoming O-235 12 airworthiness directives
- Failure reports on the Lycoming O-235 84 reports since 1995
These connections as data: /graph/engine/lycoming-o-235.json · about the eFlight graph.
Aircraft newest certificates first · 14
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N2019L | Michael Leamy ZENITH 750 STOL |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2025-08-04 | ValidFAA registration status code V: Valid registration. All codes |
| N64MK | Champion 7ECA |
Fixed-wing, single engine | Individual owner Iowa |
Standard | 2025-04-02 | ValidFAA registration status code V: Valid registration. All codes |
| N822DJ | David V Coscio LONG EZ/VARIEZE |
Fixed-wing, single engine | Individual owner California |
Experimental | 2024-12-10 | ValidFAA registration status code V: Valid registration. All codes |
| N749TF | Navmar Applied Sciences TEROS C |
Defense drones | Navmar Applied Sciences CORP Ivyland, Pennsylvania |
Experimental | 2024-06-05 | ValidFAA registration status code V: Valid registration. All codes |
| N523EZ | Deboer D Dwight RUTAN LONG EZ |
Fixed-wing, single engine | Individual owner Washington |
Experimental | 2023-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N235FB | Navmar Applied Sciences TEROS C |
Defense drones | Florida Power and Light West Palm Beach, Florida |
Experimental | 2023-02-09 | ValidFAA registration status code V: Valid registration. All codes |
| N52525 | Allen Mulderink/Todd Ripp HATZ |
Fixed-wing, single engine | Mulderink Allen F Watertown, Wisconsin |
Experimental | 2022-11-28 | ValidFAA registration status code V: Valid registration. All codes |
| N120RR | Samuel L Orr PIPER PA-18 REP L-21 |
Fixed-wing, single engine | Individual owner Georgia |
Experimental | 2022-01-10 | ValidFAA registration status code V: Valid registration. All codes |
| N6473E | Myron Callaham PANTHER LS |
Fixed-wing, single engine | Individual owner Kentucky |
Experimental | 2021-11-09 | ValidFAA registration status code V: Valid registration. All codes |
| N750XS | Douglass A Schmalzel STOL CH750 |
Fixed-wing, single engine | Individual owner Michigan |
Experimental | 2021-04-13 | ValidFAA registration status code V: Valid registration. All codes |
| N601HH | Joseph D Herman ZODIAC 601XLB |
Fixed-wing, single engine | Individual owner Illinois |
Experimental | 2019-12-16 | ValidFAA registration status code V: Valid registration. All codes |
| N950JC | John P Corbett RUTAN LONG-EZ |
Fixed-wing, single engine | Individual owner Georgia |
Experimental | 2016-10-25 | ValidFAA registration status code V: Valid registration. All codes |
| N89RV | Fletcher William Robert Jr VANS RV 3 |
Fixed-wing, single engine | Individual owner Tennessee |
Experimental | 2012-01-24 | ValidFAA registration status code V: Valid registration. All codes |
| N58AT | Teek D T LONG EZ |
Fixed-wing, single engine | Individual owner Georgia |
Experimental | 2011-03-14 | ValidFAA registration status code V: Valid registration. All codes |
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.