Lycoming IO-540-K1B5
17 aircraft on the U.S. register carry a Lycoming IO-540-K1B5 engine, rated at about 300 horsepower. The Pilatus Britten-Norman Ltd. BN-2 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 IO-540-K1B5 (2 codes). FAA spellings: IO-540-K1B5 · IO-540-K1B5.
Fitted to model families
Pilatus Britten-Norman Ltd. BN-2 · Eads Pzl Warszawa-Okecie Sa PZL-104 · Bridgham David A STALLION · Britten Norman Ltd. BN-2B-20 · Britten-Norman BN-2 · Carlson Leonard V SEAWIND 3000 · Cessna R182 Skylane RG · Republic RC-3
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 IO-540-K1B5 the component layer
The design is held under 1 type certificate (1E4, held by Lycoming Engines). The FAA has issued 38 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 100 failure reports with the FAA since 1995, 6 of them in the last ten years.
FAA orders 38 airworthiness directives · newest first
Failure reports 100 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
- Pilatus Britten-Norman Ltd. BN-2 6 with this engine series
- Eads Pzl Warszawa-Okecie Sa PZL-104 5 with this engine series
- Britten-Norman BN-2 1 with this engine series
- Cessna R182 Skylane RG 1 with this engine series
- Republic RC-3 1 with this engine series
- Massachusetts 5 of these aircraft
- Wyoming 1 of these aircraft
- Utah 1 of these aircraft
- Oregon 1 of these aircraft
- Ohio 1 of these aircraft
- Hyannis Air Service INC 2 of these aircraft
- Valiair Lc Trustee 1 of these aircraft
- Spirit Air INC 1 of these aircraft
- FAA orders naming the Lycoming IO-540-K1B5 38 airworthiness directives
- Failure reports on the Lycoming IO-540-K1B5 100 reports since 1995
These connections as data: /graph/engine/lycoming-io-540-k1b5.json · about the eFlight graph.
Aircraft newest certificates first · 17
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N70AS | Britten Norman Ltd. BN-2B-20 |
Fixed-wing, multi-engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2026-01-20 | ValidFAA registration status code V: Valid registration. All codes |
| N570BN | Pilatus Britten-Norman Ltd. BN2B-20 |
Fixed-wing, multi-engine | Hyannis Air Service INC Hyannis, Massachusetts |
Standard | 2025-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N31BP | Eads Pzl Warszawa-Okecie Sa PZL-104MA WILGA 2000 |
Fixed-wing, single engine | Valiair Lc Trustee Casper, Wyoming |
Standard | 2025-04-25 | ValidFAA registration status code V: Valid registration. All codes |
| N600DW | Eads Pzl Warszawa-Okecie Sa PZL-104MA WILGA 2000 |
Fixed-wing, single engine | Digital Production and Design LLC San Mateo, California |
Standard | 2025-02-06 | ValidFAA registration status code V: Valid registration. All codes |
| N801SA | Pilatus Britten-Norman Ltd. BN-2B-21 |
Fixed-wing, multi-engine | Spirit Air INC Salmon, Idaho |
Standard | 2022-05-24 | ValidFAA registration status code V: Valid registration. All codes |
| N321VG | Carlson Leonard V SEAWIND 3000 |
Fixed-wing, single engine | Individual owner Arkansas |
Experimental | 2021-02-19 | ValidFAA registration status code V: Valid registration. All codes |
| N923MW | Eads Pzl Warszawa-Okecie Sa PZL-104M WILGA 2000 |
Fixed-wing, single engine | Trike Industries LLC Draper, Utah |
Standard | 2021-01-21 | ValidFAA registration status code V: Valid registration. All codes |
| N463RK | Republic RC-3 |
Fixed-wing, single engine | Kaskel Super Service LLC Evansville, Indiana |
Experimental | 2020-11-16 | ValidFAA registration status code V: Valid registration. All codes |
| N233G | Eads Pzl Warszawa-Okecie Sa PZL-104MA WILGA 2000 |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2019-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N540BN | Pilatus Britten-Norman Ltd. BN2B-20 |
Fixed-wing, multi-engine | Hyannis Air Service INC D/B/A Hyannis, Massachusetts |
Standard | 2014-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N520BN | Pilatus Britten-Norman Ltd. BN2B-20 |
Fixed-wing, multi-engine | Hyannis Air Service INC Hyannis, Massachusetts |
Standard | 2013-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N530BN | Pilatus Britten-Norman Ltd. BN2B-20 |
Fixed-wing, multi-engine | Hyannis Air Service DBA Hyannis, Massachusetts |
Standard | 2013-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N510BN | Pilatus Britten-Norman Ltd. BN2B-20 |
Fixed-wing, multi-engine | Hyannis Air Service INC DBA Hyannis, Massachusetts |
Standard | 2013-08-29 | ValidFAA registration status code V: Valid registration. All codes |
| N756EU | Cessna R182 |
Fixed-wing, single engine | Fisher Air LLC Cardington, Ohio |
Experimental | 2013-03-12 | ValidFAA registration status code V: Valid registration. All codes |
| N958KM | Britten-Norman BN-2A-21 |
Fixed-wing, multi-engine | East Baton Rouge Parish Mosquito Baton Rouge, Louisiana |
Restricted | 2012-11-21 | ValidFAA registration status code V: Valid registration. All codes |
| N471DB | Bridgham David A STALLION |
Fixed-wing, single engine | Individual owner New Hampshire |
Experimental | 2009-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N424HD | Eads Pzl Warszawa-Okecie Sa PZL-104M WILGA 2000 |
Fixed-wing, single engine | Island Century Media LLC N Redington Beach, Florida |
Standard | 2006-07-12 | 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.