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

Lycoming O-320-D1A

116 aircraft on the U.S. register carry a Lycoming O-320-D1A engine, rated at about 160 horsepower. The Gyroflug SC 01 is the model most often fitted with it (4 aircraft). The aircraft carrying it were built between 1987 and 2025.

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-320-D1A. FAA spelling: O-320-D1A.

Fitted to model families

Gyroflug SC 014Accardo Paul VAN'S RV9A1Andrews Jim N RV-9A1Baker Jon VANS RV6A1Barrigar Al RV-61Belisle Kenneth C BELISLE PANTHER LS1Billips Robert A RV-9A1Boarman Mark A VANS RV41Bower James C RV-6A1Bowles Chris VANS RV9A1Brandt Andrew C RV-9A1Brian N Vickers VANS RV-41

Gyroflug SC 01 · Accardo Paul VAN'S RV9A · Andrews Jim N RV-9A · Baker Jon VANS RV6A · Barrigar Al RV-6 · Belisle Kenneth C BELISLE PANTHER LS · Billips Robert A RV-9A · Boarman Mark A VANS RV4 · Bower James C RV-6A · Bowles Chris VANS RV9A

Where they are owner's state

Oregon15Texas14California14Florida8Arizona6South Carolina5Wisconsin3Washington3Virginia3Tennessee3

Kind of aircraft

Piston singles116 (100%)

When the aircraft were built by decade

0122334464198071990422000462010102020

What the FAA has certified, ordered and been told about the Lycoming O-320-D1A the component layer

The design is held under 1 type certificate (E-274, held by Lycoming Engines). The FAA has issued 19 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 23 failure reports with the FAA since 1995, 9 of them in the last ten years.

FAA orders 19 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2012-03-272012-03-07 · Carburetor · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine
2006-01-312005-26-10 · ECi cylinder assemblies. · engine
2004-06-252004-10-14 · Crankshaft gear · engine

All orders naming the Lycoming O-320-D1A

Failure reports 23 since · what operators and shops told the FAA

01234950211215

Parts most often reported as the reports name them

Magneto2Muffler2Starter2Alternator1Arm1Bellcrank1Bolt1Bracket1Buckle1Bushing1

Latest reports

2015-06-03Starter: misoverhauled
2015-03-04Bushing: broken
2014-10-06Starter Gen: engaged
2014-01-29Tube: failed
2013-11-20Starter: inoperative

Certificates and bulletins

E-274Type certificate held by Lycoming Engines · 60 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

Fitted to
Where they are
Biggest operators
Airworthiness

These connections as data: /graph/engine/lycoming-o-320-d1a.json · about the eFlight graph.

Aircraft newest certificates first · 116

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N124SR Smith Richard L
RV-4
Fixed-wing, single engine Individual owner
Texas
Experimental 2008-08-19 ValidFAA registration status code V: Valid registration. All codes
N79LH Hemman Lloyd A
RV-9A
Fixed-wing, single engine Co-owned owner
California
Experimental 2008-05-15 ValidFAA registration status code V: Valid registration. All codes
N818RD Domenico Ricky A
RV9A
Fixed-wing, single engine Individual owner
Colorado
Experimental 2007-09-17 ValidFAA registration status code V: Valid registration. All codes
N883TT Baker Jon
VANS RV6A
Fixed-wing, single engine Co-owned owner
Missouri
Experimental 2007-08-24 ValidFAA registration status code V: Valid registration. All codes
N505EP Petersen Eric P
VANS RV6A
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2007-06-19 ValidFAA registration status code V: Valid registration. All codes
N734JW Whitehouse John M
VANS RV-4
Fixed-wing, single engine Individual owner
California
Experimental 2007-04-23 ValidFAA registration status code V: Valid registration. All codes
N509A Necochea Juan
RV9A
Fixed-wing, single engine Individual owner
California
Experimental 2006-09-07 ValidFAA registration status code V: Valid registration. All codes
N616WD Halama Patrick J
RV9A
Fixed-wing, single engine Individual owner
Wisconsin
Experimental 2006-05-30 ValidFAA registration status code V: Valid registration. All codes
N222 Foutz Robert V
RV-9A
Fixed-wing, single engine Individual owner
Virginia
Experimental 2006-05-19 ValidFAA registration status code V: Valid registration. All codes
N339PJ Wallace James Ray
RV9A
Fixed-wing, single engine Individual owner
Oregon
Experimental 2006-03-17 ValidFAA registration status code V: Valid registration. All codes
N116DP Paup Dennis C
VANS RV-7
Fixed-wing, single engine Individual owner
Iowa
Experimental 2005-04-04 ValidFAA registration status code V: Valid registration. All codes
N477RV Vans Aircraft Inc
VANS RV-7
Fixed-wing, single engine Vans Aircraft INC
Aurora, Oregon
Experimental 2004-02-19 ValidFAA registration status code V: Valid registration. All codes
N20807 Dyess William C
RV-6
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2000-04-10 ValidFAA registration status code V: Valid registration. All codes
N129RV Vans Aircraft Inc
RV-9A
Fixed-wing, single engine Vans Aircraft INC
Aurora, Oregon
Experimental 2000-03-29 ValidFAA registration status code V: Valid registration. All codes
N666RV Vangrunsven R E/Vangrunsven D
RV 6A
Fixed-wing, single engine Vans Aircraft INC
Aurora, Oregon
Experimental 1988-04-21 ValidFAA registration status code V: Valid registration. All codes
N447BD Dixon Bruce
RV-6A
Fixed-wing, single engine Individual owner
Kentucky
Experimental PendingFAA registration status code R: Registration pending. All codes
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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.