Lycoming O-540-E4B5
21 aircraft on the U.S. register carry a Lycoming O-540-E4B5 engine, rated at about 260 horsepower. The Piper PA-32 Cherokee Six, Lance and Saratoga is the model most often fitted with it (6 aircraft). The aircraft carrying it were built between 1947 and 2019.
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-E4B5. FAA spelling: O-540-E4B5.
Fuel: 100LL avgas.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Piper PA-32 Cherokee Six, Lance and Saratoga | 6 |
| Baker Matthew A HARMONROCKET II | 1 |
| Crites SKYBOLT | 1 |
| Dale R Johannes BEARHAWK | 1 |
| David Carl Goodwin Iv RV-10 | 1 |
| Hall Larry D PAZMANY PL-9 | 1 |
| Hartter Lenny J BEARHAWK | 1 |
| Lambert Havelka RV-10 | 1 |
| Moeller Raymond H Ii STEEN SKYBOLT | 1 |
| Paul D Renaud RV-10 | 1 |
| Robert Michael Kuklo BARRACUDA | 1 |
| Ryan R Bendure HARMON ROCKET II | 1 |
Piper PA-32 Cherokee Six, Lance and Saratoga · Baker Matthew A HARMONROCKET II · Crites SKYBOLT · Dale R Johannes BEARHAWK · David Carl Goodwin Iv RV-10 · Hall Larry D PAZMANY PL-9 · Hartter Lenny J BEARHAWK · Lambert Havelka RV-10 · Moeller Raymond H Ii STEEN SKYBOLT · Paul D Renaud RV-10
Where they are owner's state
What the FAA has certified, ordered and been told about the Lycoming O-540-E4B5 the component layer
The design is held under 1 type certificate (E-295, held by Lycoming Engines). The FAA has issued 24 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 39 failure reports with the FAA since 1995, 2 of them in the last ten years.
FAA orders 24 airworthiness directives · newest first
Failure reports 39 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 95 | 6 |
| 96 | 2 |
| 97 | 8 |
| 98 | 2 |
| 99 | 1 |
| 00 | 1 |
| 01 | 2 |
| 02 | 3 |
| 03 | 2 |
| 04 | 5 |
| 05 | 1 |
| 09 | 1 |
| 11 | 2 |
| 14 | 1 |
| 20 | 1 |
| 25 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Valve | 3 |
| Crankshaft | 2 |
| Drain Tube | 2 |
| Magneto | 2 |
| Muffler | 2 |
| Spar | 2 |
| Valve Seat | 2 |
| B-Nut | 1 |
| Bolt | 1 |
| Carburetor | 1 |
Latest reports
Approved replacement parts 18 parts manufacturer approvals
Parts a company other than the maker may make for this engine and sell as FAA-approved. The companies holding the most:
Most often: harness (6), scavenge pump (4), magneto (3), alternator (2), turbocharger (1), machining (1), impulse coupling (1).
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-32 Cherokee Six, Lance and Saratoga 6 with this engine series
- Stinson 108 Voyager and Station Wagon 1 with this engine series
- Colorado 3 of these aircraft
- California 3 of these aircraft
- Alaska 3 of these aircraft
- Virginia 1 of these aircraft
- Utah 1 of these aircraft
- Garmin International INC 1 of these aircraft
- FAA orders naming the Lycoming O-540-E4B5 24 airworthiness directives
- Failure reports on the Lycoming O-540-E4B5 39 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/lycoming-o-540-e4b5.json.
Aircraft newest certificates first · 21
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N220EX | Thompson Philip R COMP AIR 6 |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2025-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N4769S | Piper PA-32-260 |
Fixed-wing, single engine | Redemption Leasing LLC Kodiak, Alaska |
Standard | 2025-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N154RV | David Carl Goodwin Iv RV-10 |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2024-04-30 | ValidFAA registration status code V: Valid registration. All codes |
| N540CZ | W J Versfeld COZY MKIV |
Fixed-wing, single engine | Co-owned owner California |
Experimental | 2023-06-21 | ValidFAA registration status code V: Valid registration. All codes |
| N728HR | Baker Matthew A HARMONROCKET II |
Fixed-wing, single engine | Individual owner California |
Experimental | 2022-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N6098M | Stinson 108-3 |
Fixed-wing, single engine | Individual owner Alaska |
Experimental | 2020-07-16 | ValidFAA registration status code V: Valid registration. All codes |
| N3922W | Piper PA-32-260 |
Fixed-wing, single engine | Steffey John Saint Augustine, Florida |
Standard | 2019-04-19 | ValidFAA registration status code V: Valid registration. All codes |
| N6234X | Moeller Raymond H Ii STEEN SKYBOLT |
Fixed-wing, single engine | Individual owner Illinois |
Experimental | 2019-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N134RT | Taylor Robert E BEARHAWK |
Fixed-wing, single engine | Individual owner Alaska |
Experimental | 2017-06-27 | ValidFAA registration status code V: Valid registration. All codes |
| N408PT | Crites SKYBOLT |
Fixed-wing, single engine | Withheld at owner's request | Experimental | 2017-01-31 | ValidFAA registration status code V: Valid registration. All codes |
| N817LH | Lambert Havelka RV-10 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2015-12-24 | ValidFAA registration status code V: Valid registration. All codes |
| N655X | Hall Larry D PAZMANY PL-9 |
Fixed-wing, single engine | Individual owner Utah |
Experimental | 2015-09-22 | ValidFAA registration status code V: Valid registration. All codes |
| N3593W | Piper PA-32-260 |
Fixed-wing, single engine | Individual owner Georgia |
Standard | 2015-02-27 | ValidFAA registration status code V: Valid registration. All codes |
| N540KL | Dale R Johannes BEARHAWK |
Fixed-wing, single engine | Individual owner Montana |
Experimental | 2013-10-25 | ValidFAA registration status code V: Valid registration. All codes |
| N253PR | Paul D Renaud RV-10 |
Fixed-wing, single engine | Individual owner New Jersey |
Experimental | 2013-04-15 | ValidFAA registration status code V: Valid registration. All codes |
| N77RM | Ryan R Bendure HARMON ROCKET II |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2012-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N57GF | Robert Michael Kuklo BARRACUDA |
Fixed-wing, single engine | Individual owner California |
Experimental | 2012-03-15 | ValidFAA registration status code V: Valid registration. All codes |
| N3119X | Hartter Lenny J BEARHAWK |
Fixed-wing, single engine | Co-owned owner Colorado |
Experimental | 2009-04-21 | ValidFAA registration status code V: Valid registration. All codes |
| N60LY | Piper PA-32-260 |
Fixed-wing, single engine | Leon Roberts Enterprises LLC Vienna, Virginia |
Standard | 2003-12-04 | ValidFAA registration status code V: Valid registration. All codes |
| N4878S | Piper PA-32-260 |
Fixed-wing, single engine | Garmin International INC Salem, Oregon |
Experimental | 1998-02-18 | ValidFAA registration status code V: Valid registration. All codes |
| N7081H | Piper PA-32-260 |
Fixed-wing, single engine | Individual owner Delaware |
Standard | Sale reportedFAA registration status code 7. All codes |
Source: FAA Civil Aviation Registry, Releasable Aircraft Database (the engine reference table and each aircraft's engine code), November 10, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.