Lycoming O-540-A1D5
18 aircraft on the U.S. register carry a Lycoming O-540-A1D5 engine, rated at about 250 horsepower. The Piper PA-24 Comanche is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1960 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 O-540-A1D5. FAA spelling: O-540-A1D5.
Fitted to model families
Piper PA-24 Comanche · Billig-Burrows STARDUSTER TOO · Gooch Lynn E RV-10 · Hagg Jeffrey RV8 · Jerald L Folkerts SUPER REBEL · John C Phillips RV-10 · Manary Lowell A MJ51 · N419Cm Llc VANS RV10 · Piper PA-23 Apache and Aztec · Piper PA-25 Pawnee
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-540-A1D5 the component layer
The design is held under 1 type certificate (E-295, held by Lycoming Engines). The FAA has issued 25 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 28 failure reports with the FAA since 1995, 7 of them in the last ten years.
FAA orders 25 airworthiness directives · newest first
Failure reports 28 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
Certificates and bulletins
Safety bulletins 6 · 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
- Piper PA-24 Comanche 4 with this engine series
- N419Cm Llc VANS RV10 1 with this engine series
- Piper PA-23 Apache and Aztec 1 with this engine series
- Piper PA-25 Pawnee 1 with this engine series
- International Air Services INC Trustee 1 of these aircraft
- FAA orders naming the Lycoming O-540-A1D5 25 airworthiness directives
- Failure reports on the Lycoming O-540-A1D5 28 reports since 1995
These connections as data: /graph/engine/lycoming-o-540-a1d5.json · about the eFlight graph.
Aircraft newest certificates first · 18
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N3632P | Piper PA-24-250 |
Fixed-wing, single engine | Aerospace Trust Management LLC Trustee Wilmington, Delaware |
Standard | 2026-03-11 | ValidFAA registration status code V: Valid registration. All codes |
| N476CF | N419Cm Llc VANS RV10 |
Fixed-wing, single engine | Individual owner Missouri |
Experimental | 2025-09-12 | ValidFAA registration status code V: Valid registration. All codes |
| N6995P | Piper PA-24-250 |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2025-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N318DS | Strodtbeck Dale G RV-10 |
Fixed-wing, single engine | Individual owner Montana |
Experimental | 2025-07-03 | ValidFAA registration status code V: Valid registration. All codes |
| N25SR | Jerald L Folkerts SUPER REBEL |
Fixed-wing, single engine | Individual owner Idaho |
Experimental | 2024-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N837EL | Wesley E Hewitt VANS RV-10 |
Fixed-wing, single engine | Hewitt Vehicles LLC Oakford, Indiana |
Experimental | 2023-03-07 | ValidFAA registration status code V: Valid registration. All codes |
| N787KS | Piper PA-24-250 |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2023-01-06 | ValidFAA registration status code V: Valid registration. All codes |
| N4724P | Piper PA-23-250 |
Fixed-wing, multi-engine | Tnt Farms Marana, Arizona |
Standard | 2021-05-03 | ValidFAA registration status code V: Valid registration. All codes |
| N45888 | Piper PA-24-250 |
Fixed-wing, single engine | D-Five Holdings Group LLC Vidor, Texas |
Standard | 2021-04-01 | ValidFAA registration status code V: Valid registration. All codes |
| N556G | Gooch Lynn E RV-10 |
Fixed-wing, single engine | Individual owner South Carolina |
Experimental | 2020-09-21 | ValidFAA registration status code V: Valid registration. All codes |
| N142KW | John C Phillips RV-10 |
Fixed-wing, single engine | Individual owner Virginia |
Experimental | 2019-05-22 | ValidFAA registration status code V: Valid registration. All codes |
| N6530Z | Piper PA-25-235 |
Fixed-wing, single engine | Elk Mountain Soaring LLC Bountiful, Utah |
Standard | 2017-08-31 | ValidFAA registration status code V: Valid registration. All codes |
| N820TX | Ronald J Walker VANS RV-10 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2016-07-22 | ValidFAA registration status code V: Valid registration. All codes |
| N828CB | Stokes Robert J Jr BEARHAWK |
Fixed-wing, single engine | Individual owner Arizona |
Experimental | 2016-02-19 | ValidFAA registration status code V: Valid registration. All codes |
| N2957 | Billig-Burrows STARDUSTER TOO |
Fixed-wing, single engine | Individual owner Alabama |
Experimental | 2012-04-24 | ValidFAA registration status code V: Valid registration. All codes |
| N510DD | Schardt Donovan D VANS RV-10 |
Fixed-wing, single engine | Co-owned owner Nebraska |
Experimental | 2009-03-24 | ValidFAA registration status code V: Valid registration. All codes |
| N3LM | Manary Lowell A MJ51 |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2007-12-07 | ValidFAA registration status code V: Valid registration. All codes |
| N548JH | Hagg Jeffrey RV8 |
Fixed-wing, single engine | Individual owner Indiana |
Experimental | 2006-09-21 | 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.