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

Lycoming LIO-320-C1A

1 aircraft on the U.S. register carry a Lycoming LIO-320-C1A engine, rated at about 160 horsepower. The Piper PA-39 Twin Comanche C/R 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 LIO-320-C1A. FAA spelling: LIO-320-C1A.

Fitted to model families

Piper PA-39 Twin Comanche C/R1

Piper PA-39 Twin Comanche C/R

Where they are owner's state

Illinois1

Kind of aircraft

Piston twins1 (100%)

When the aircraft were built by decade

0001111970

What the FAA has certified, ordered and been told about the Lycoming LIO-320-C1A the component layer

The design is held under 1 type certificate (1E12, held by Lycoming Engines). The FAA has issued 29 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 1 failure report with the FAA since 1995, 1 of them in the last ten years.

FAA orders 29 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2015-11-032015-19-07 · Fuel injector fuel lines · engine
2012-02-242012-03-06 · Fuel servo diaphragm · engine
2012-01-252011-26-04 · Externally mounted fuel injector fuel lines · engine
2011-08-162011-15-10 · Fuel servos · engine

All orders naming the Lycoming LIO-320-C1A

Failure reports 1 since · what operators and shops told the FAA

00011114

Parts most often reported as the reports name them

Rotor1

Latest reports

2014-05-16Rotor: cracked

Certificates and bulletins

1E12Type certificate held by Lycoming Engines · 32 models listed · revised April 4, 2018

Safety bulletins 5 · 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
2008-09-10NE-06-32R1 · Reciprocating Engine - Crankshaft
2008-07-03NE-08-32 · Propeller Governor Set Screw

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

Fitted to
Where they are
Airworthiness

These connections as data: /graph/engine/lycoming-lio-320-c1a.json · about the eFlight graph.

Aircraft newest certificates first · 1

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N502DW Piper
PA-39
Fixed-wing, multi-engine Solamich Aviation LLC
Huntley, Illinois
Standard 2023-12-09 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.