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

Lycoming IO-540-K1H5

2 aircraft on the U.S. register carry a Lycoming IO-540-K1H5 engine, rated at about 300 horsepower. The Goddard Tom/Goddard Peter GLASAIR III is the model most often fitted with it (1 aircraft).

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-K1H5. FAA spelling: IO-540-K1H5.

Fitted to model families

Goddard Tom/Goddard Peter GLASAIR III1Olds Rodger C GLASAIR III1

Goddard Tom/Goddard Peter GLASAIR III · Olds Rodger C GLASAIR III

Where they are owner's state

California1Arizona1

Kind of aircraft

Piston singles2 (100%)

When the aircraft were built by decade

0001112000

What the FAA has certified, ordered and been told about the Lycoming IO-540-K1H5 the component layer

The design is held under 1 type certificate (1E4, held by Lycoming Engines). The FAA has issued 31 airworthiness directives (orders that owners must comply with) that name this engine series.

FAA orders 31 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
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-10-242012-19-01 · Crankshafts · engine

All orders naming the Lycoming IO-540-K1H5

Certificates and bulletins

1E4Type certificate held by Lycoming Engines · 81 models listed · revised February 28, 2018

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-io-540-k1h5.json · about the eFlight graph.

Aircraft newest certificates first · 2

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N32NV Goddard Tom/Goddard Peter
GLASAIR III
Fixed-wing, single engine Individual owner
California
None on file 2022-01-12 ValidFAA registration status code V: Valid registration. All codes
N105RC Olds Rodger C
GLASAIR III
Fixed-wing, single engine Individual owner
Arizona
Experimental 2012-05-10 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.