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

Lycoming O-320-E2G

32 aircraft on the U.S. register carry a Lycoming O-320-E2G engine, rated at about 150 horsepower. The Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger is the model most often fitted with it (16 aircraft). The aircraft carrying it were built between 1972 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-320-E2G (2 codes). FAA spellings: O-320-E2G · 0-320-E2G.

Fitted to model families

Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger16Andres A Santos VANS RV 41Brownlow Charles B HATZ LB-11Dennis Robinson/Tim Seratt CORSAIR1Epp Ron PA-18 REPLICA1Gulfstream American Corp AA-51Hedge Daniel A W10 TAILWIND1Homelvig John D/Adam K/Alice E RV-9A1Hughes John J HATZ CB-11Long Claude W-10 WITTMAN TAILWIN1Mark Whitfill VANS RV6A1Michael E Sides 2+2 SPORTSMAN1

Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger · Andres A Santos VANS RV 4 · Brownlow Charles B HATZ LB-1 · Dennis Robinson/Tim Seratt CORSAIR · Epp Ron PA-18 REPLICA · Gulfstream American Corp AA-5 · Hedge Daniel A W10 TAILWIND · Homelvig John D/Adam K/Alice E RV-9A · Hughes John J HATZ CB-1 · Long Claude W-10 WITTMAN TAILWIN

Where they are owner's state

Texas4Massachusetts4Oklahoma3Nebraska2Mississippi2Idaho2California2Washington1Virginia1Tennessee1

Kind of aircraft

Piston singles32 (100%)

When the aircraft were built by decade

0481216161970320008201022020

What the FAA has certified, ordered and been told about the Lycoming O-320-E2G the component layer

The design is held under 1 type certificate (E-274, held by Lycoming Engines). The FAA has issued 18 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, 2 of them in the last ten years.

FAA orders 18 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2017-08-152017-16-11 · Reciprocating Engine Power Section · 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

All orders naming the Lycoming O-320-E2G

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

012349596979899000102040717118

Parts most often reported as the reports name them

Valve3Cylinder2Line2Aileron1Bearing1Blade1Bolt1Camshaft1Duct1Efi1

Latest reports

2018-06-28Cylinder: damaged
2017-07-01Efi: failed
2007-01-18Pump: leaking
2004-02-28Cylinder: worn
2002-06-29Exhaust Valve: broken

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-e2g.json · about the eFlight graph.

Aircraft newest certificates first · 32

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N26253 Gulfstream American Corp
AA-5A
Fixed-wing, single engine Individual owner
Florida
Standard 2026-02-03 ValidFAA registration status code V: Valid registration. All codes
N804GA Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N593AC Homelvig John D/Adam K/Alice E
RV-9A
Fixed-wing, single engine Co-owned owner
North Dakota
Experimental 2025-08-21 ValidFAA registration status code V: Valid registration. All codes
N21HK Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2025-08-11 ValidFAA registration status code V: Valid registration. All codes
N277MW Grumman American Avn. Corp.
AA-5
Fixed-wing, single engine Euroaviation INC Trustee
Kem,
Standard 2025-01-21 ValidFAA registration status code V: Valid registration. All codes
N9845U Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Texas
Standard 2024-11-25 ValidFAA registration status code V: Valid registration. All codes
N961KS Grumman American Avn. Corp.
AA-5
Fixed-wing, single engine Individual owner
California
Standard 2024-11-16 ValidFAA registration status code V: Valid registration. All codes
N376DM Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
California
Standard 2024-02-28 ValidFAA registration status code V: Valid registration. All codes
N191G Dennis Robinson/Tim Seratt
CORSAIR
Fixed-wing, single engine Individual owner
Missouri
Experimental 2023-09-14 ValidFAA registration status code V: Valid registration. All codes
N439DS Skinner David L
ACRO SPORT II
Fixed-wing, single engine Individual owner
Ohio
Experimental 2023-09-06 ValidFAA registration status code V: Valid registration. All codes
N376V Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2023-09-05 ValidFAA registration status code V: Valid registration. All codes
N287PS Michael E Sides
2+2 SPORTSMAN
Fixed-wing, single engine Individual owner
Nebraska
Experimental 2022-01-31 ValidFAA registration status code V: Valid registration. All codes
N741HC Brownlow Charles B
HATZ LB-1
Fixed-wing, single engine Up 2011 LLC
Edmond, Oklahoma
Experimental 2021-02-05 ValidFAA registration status code V: Valid registration. All codes
N202DG Grumman American Avn. Corp.
AA-5
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2021-01-13 ValidFAA registration status code V: Valid registration. All codes
N532JH Hughes John J
HATZ CB-1
Fixed-wing, single engine Individual owner
Idaho
Experimental 2020-03-16 ValidFAA registration status code V: Valid registration. All codes
N522MW Mark Whitfill
VANS RV6A
Fixed-wing, single engine Individual owner
Texas
Experimental 2018-12-28 ValidFAA registration status code V: Valid registration. All codes
N530CJ Long Claude
W-10 WITTMAN TAILWIN
Fixed-wing, single engine Individual owner
Washington
Experimental 2018-11-02 ValidFAA registration status code V: Valid registration. All codes
N9965U Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Idaho
Standard 2018-09-20 ValidFAA registration status code V: Valid registration. All codes
N51790 Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
North Carolina
Standard 2017-10-24 ValidFAA registration status code V: Valid registration. All codes
N347ST Warren S Arter
ARTER CUB II
Fixed-wing, single engine Individual owner
Mississippi
Experimental 2016-08-22 ValidFAA registration status code V: Valid registration. All codes
N9587L Grumman American Avn. Corp.
AA-5
Fixed-wing, single engine Individual owner
Mississippi
Standard 2016-03-21 ValidFAA registration status code V: Valid registration. All codes
N714AS Andres A Santos
VANS RV 4
Fixed-wing, single engine Individual owner
Puerto Rico
Experimental 2013-07-18 ValidFAA registration status code V: Valid registration. All codes
N22783 Raymond R Fookes
FOOKES FALCON
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2013-04-10 ValidFAA registration status code V: Valid registration. All codes
N625WZ Epp Ron
PA-18 REPLICA
Fixed-wing, single engine Chris Vinton Ranch CO
Whitman, Nebraska
Experimental 2012-10-01 ValidFAA registration status code V: Valid registration. All codes
N320DH Hedge Daniel A
W10 TAILWIND
Fixed-wing, single engine Individual owner
Texas
Experimental 2012-04-19 ValidFAA registration status code V: Valid registration. All codes
N884RV Paul W Dannebrock
RV-9A
Fixed-wing, single engine Individual owner
New York
Experimental 2012-02-28 ValidFAA registration status code V: Valid registration. All codes
N9779U Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Massachusetts
Standard 2012-02-21 ValidFAA registration status code V: Valid registration. All codes
N143W Scott Jeffrey E
WAG AEROSPORTTRAINER
Fixed-wing, single engine Individual owner
Arkansas
Experimental 2010-05-27 ValidFAA registration status code V: Valid registration. All codes
N9849U Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Texas
Standard 1995-09-28 ValidFAA registration status code V: Valid registration. All codes
N9791U Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 1988-08-12 ValidFAA registration status code V: Valid registration. All codes
N32SK Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Arizona
Standard 1983-06-06 ValidFAA registration status code V: Valid registration. All codes
N3050J Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Virginia
Standard PendingFAA registration status code R: Registration pending. 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.