The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 5, 2026

Lycoming O-540-A1B5

4 aircraft on the U.S. register carry a Lycoming O-540-A1B5 engine, rated at about 250 horsepower. The Kim S Olson SUPER REBLE is the model most often fitted with it (1 aircraft). The aircraft carrying it were built between 2006 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-A1B5. FAA spelling: O-540-A1B5.

Fitted to model families

Kim S Olson SUPER REBLE1Nathanael W Allen RV101Turner Mark D BEARHAWK1Vu Anh RV-101

Kim S Olson SUPER REBLE · Nathanael W Allen RV10 · Turner Mark D BEARHAWK · Vu Anh RV-10

Where they are owner's state

Virginia1Minnesota1Idaho1California1

Kind of aircraft

Piston singles4 (100%)

When the aircraft were built by decade

00122120001201022020

What the FAA has certified, ordered and been told about the Lycoming O-540-A1B5 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 2 failure reports with the FAA since 1995, 1 of them in the last ten years.

FAA orders 24 airworthiness directives · newest first

2026-09-142026-17-10 · Reciprocating Engine Cylinder Section · engine
2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2012-10-242012-19-01 · Crankshafts · engine
2012-03-272012-03-07 · Carburetor · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine

All orders naming the Lycoming O-540-A1B5

Failure reports 2 since · what operators and shops told the FAA

00011196118

Parts most often reported as the reports name them

Bendix Drive1Blade1

Latest reports

2018-05-23Blade: cracked
1996-12-21Bendix Drive: excess worn

Certificates and bulletins

E-295Type certificate held by Lycoming Engines · 47 models listed · revised April 30, 2013

Safety bulletins 6 · advice, not orders

2019-05-02NE-19-08 · Reciprocating Engine Cylinder Section - Lycoming Engines Parallel Valve Cylinders
2016-05-13NE-08-32R1 · Propeller Governor Idler Gear Shaft Set Screw
2014-03-24NE-14-13 · Reciprocating Engine - Cylinder Mounting Studs
2012-11-21NE-13-06 · Pushrod Shroud Spring Retainers, Engine Components Part No. AEL14995, for Lycoming Engines 320,...
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft

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

Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-o-540-a1b5.json · about the eFlight graph.

Aircraft newest certificates first · 4

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N97XZ Nathanael W Allen
RV10
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2026-03-04 ValidFAA registration status code V: Valid registration. All codes
N540WT Turner Mark D
BEARHAWK
Fixed-wing, single engine Individual owner
California
Experimental 2025-09-22 ValidFAA registration status code V: Valid registration. All codes
N147B Kim S Olson
SUPER REBLE
Fixed-wing, single engine Individual owner
Idaho
Experimental 2021-08-24 ValidFAA registration status code V: Valid registration. All codes
N591VU Vu Anh
RV-10
Fixed-wing, single engine Individual owner
Virginia
Experimental 2006-10-20 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.