The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 7, 2026

Lycoming IO-320 series

1,707 aircraft on the U.S. register carry a Lycoming IO-320 series engine, rated at about 150 horsepower. The Piper PA-30 Twin Comanche is the model most often fitted with it (808 aircraft). The aircraft carrying it were built between 1956 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 IO-320 series. FAA spelling: IO-320 SERIES.

Fitted to model families

Piper PA-30 Twin Comanche808Bellanca 7 Citabria185Champion 7 Citabria and Champ135Bellanca 8 Decathlon and Scout124Piper PA-39 Twin Comanche C/R68Cessna 172 Skyhawk26Piper PA-28 Cherokee, Warrior, Archer and Arrow15Piper PA-18 Super Cub8Piper PA-22 Tri-Pacer and Colt4Pitts Special S-13Beechcraft D952Cessna 177 Cardinal2

Piper PA-30 Twin Comanche · Bellanca 7 Citabria · Champion 7 Citabria and Champ · Bellanca 8 Decathlon and Scout · Piper PA-39 Twin Comanche C/R · Cessna 172 Skyhawk · Piper PA-28 Cherokee, Warrior, Archer and Arrow · Piper PA-18 Super Cub · Piper PA-22 Tri-Pacer and Colt · Pitts Special S-1

Where they are owner's state

Texas153Florida146California144Georgia71Delaware59Washington54Illinois52Alabama49Michigan48Ohio46

Kind of aircraft

Piston twins882 (52%)Piston singles824 (48%)Gliders1 (0.1%)

When the aircraft were built by decade

0208415622830193019401950196019701980199020002010192020

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

The design is held under 1 type certificate (1E12, held by Lycoming Engines). The FAA has issued 30 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 43 failure reports with the FAA since 1995, 8 of them in the last ten years.

FAA orders 30 airworthiness directives · newest first

2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2022-08-152022-16-03 · Engine (RECIPROCATING) · engine
2012-02-242012-03-06 · Fuel servo diaphragm · engine
2011-08-162011-15-10 · Fuel servos · engine
2009-02-092009-02-03 · Fuel injection servos · engine

All orders naming the Lycoming IO-320 series

Failure reports 43 since · what operators and shops told the FAA

0245700051423125

Parts most often reported as the reports name them

Bolt12Spar5Carburetor2Servo2B-Nut1Bearing1Blade1Bulkhead1Capacitor1Commutator1

Latest reports

2025-06-30Impulse Coupling: destroyed
2023-12-09Hose Connector: disconnected
2022-11-02Bearing: worn
2022-02-24Carburetor: leaking
2021-04-30Exhaust Pipe: cracked

Certificates and bulletins

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

Safety bulletins 9 · 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-io-320-series.json · about the eFlight graph.

Aircraft newest certificates first · 1,707

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N8027Y Piper
PA-30
Fixed-wing, multi-engine Greek Housing Services CORP
Port Matilda, Pennsylvania
Standard 2015-12-05 ValidFAA registration status code V: Valid registration. All codes
N8213Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Indiana
Standard 2015-12-05 ValidFAA registration status code V: Valid registration. All codes
N14SV Nord
STAMPE SV4C
Fixed-wing, single engine Individual owner
Michigan
Experimental 2015-12-04 ValidFAA registration status code V: Valid registration. All codes
N7457Y Piper
PA-30
Fixed-wing, multi-engine Peter Prince Aviation Center LLC
Milton, Florida
Standard 2015-12-03 ValidFAA registration status code V: Valid registration. All codes
N1229 John J Funsch
PITTS SPECIAL
Fixed-wing, single engine Individual owner
Virginia
Experimental 2015-11-18 ValidFAA registration status code V: Valid registration. All codes
N282JC Miller Joseph W
VANS RV-9A
Fixed-wing, single engine N282Jc LLC
Hillsboro, Oregon
Experimental 2015-11-05 ValidFAA registration status code V: Valid registration. All codes
N7330Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Kansas
Standard 2015-11-05 ValidFAA registration status code V: Valid registration. All codes
N16NJ Piper
PA-30
Fixed-wing, multi-engine Individual owner
Colorado
Standard 2015-11-04 ValidFAA registration status code V: Valid registration. All codes
N777FS Piper
PA-39
Fixed-wing, multi-engine Co-owned owner
Idaho
Multiple 2015-11-03 ValidFAA registration status code V: Valid registration. All codes
N9BF Baron Fred N
LANCAIR 320
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2015-10-23 ValidFAA registration status code V: Valid registration. All codes
N8088Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Kansas
Standard 2015-10-15 ValidFAA registration status code V: Valid registration. All codes
N1843G Champion
7KCAB
Fixed-wing, single engine Wincar Air LLC
Doniphan, Nebraska
Standard 2015-09-29 ValidFAA registration status code V: Valid registration. All codes
N703L Shankle Joel Warren
FALCO F 8L
Fixed-wing, single engine Co-owned owner
Georgia
Experimental 2015-09-18 ValidFAA registration status code V: Valid registration. All codes
N30XT Piper
PA-30
Fixed-wing, multi-engine Individual owner
Florida
Standard 2015-09-14 ValidFAA registration status code V: Valid registration. All codes
N9102L Champion
7KCAB
Fixed-wing, single engine Individual owner
Alabama
Multiple 2015-09-03 ValidFAA registration status code V: Valid registration. All codes
N114CD Piper
PA-30
Fixed-wing, multi-engine Norwest Ventures LLC
Santa Cruz, California
Standard 2015-08-28 ValidFAA registration status code V: Valid registration. All codes
N5284X Champion
7KCAB
Fixed-wing, single engine Individual owner
California
Standard 2015-08-28 ValidFAA registration status code V: Valid registration. All codes
N86834 Bellanca
7KCAB
Fixed-wing, single engine Cardinal Aviation INC
Murray, Kentucky
Standard 2015-08-17 ValidFAA registration status code V: Valid registration. All codes
N7384Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2015-08-11 ValidFAA registration status code V: Valid registration. All codes
N7129Y Piper
PA-30
Fixed-wing, multi-engine Co-owned owner
California
Standard 2015-08-10 ValidFAA registration status code V: Valid registration. All codes
N574CZ Bernard K Siu
CZ1100
Fixed-wing, single engine Individual owner
California
Experimental 2015-07-23 ValidFAA registration status code V: Valid registration. All codes
N95357 Piper
PA-28-140
Fixed-wing, single engine Individual owner
Kentucky
Standard 2015-07-21 ValidFAA registration status code V: Valid registration. All codes
N2143C Bellanca
7KCAB
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2015-07-20 ValidFAA registration status code V: Valid registration. All codes
N7368Y Piper
PA-30
Fixed-wing, multi-engine Co-owned owner
California
Standard 2015-07-15 ValidFAA registration status code V: Valid registration. All codes
N5702U Piper
PA-28-140
Fixed-wing, single engine Individual owner
Hawaii
Standard 2015-07-10 ValidFAA registration status code V: Valid registration. All codes
N98646 Cessna
172P
Fixed-wing, single engine Individual owner
Texas
Standard 2015-07-02 ValidFAA registration status code V: Valid registration. All codes
N88314 Bellanca
7KCAB
Fixed-wing, single engine Individual owner
Colorado
Standard 2015-06-30 ValidFAA registration status code V: Valid registration. All codes
N9171Y Kwiecinski Pawel K
FALCO F8L
Fixed-wing, single engine Airelibre Aviation INC
Wilmington, Delaware
Experimental 2015-06-22 ValidFAA registration status code V: Valid registration. All codes
N7324Y Piper
PA-30
Fixed-wing, multi-engine Co-owned owner
Missouri
Standard 2015-06-09 ValidFAA registration status code V: Valid registration. All codes
N53735 Bellanca
7KCAB
Fixed-wing, single engine Vermont Flight Academy
South Burlington, Vermont
Standard 2015-06-02 ValidFAA registration status code V: Valid registration. All codes
N7793Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Iowa
Standard 2015-06-01 ValidFAA registration status code V: Valid registration. All codes
N72D Bellanca
8KCAB
Fixed-wing, single engine Co-owned owner
Kansas
Standard 2015-05-28 ValidFAA registration status code V: Valid registration. All codes
N82045 Piper
PA-28-161
Fixed-wing, single engine Paris Air INC
Vero Beach, Florida
Standard 2015-05-14 ValidFAA registration status code V: Valid registration. All codes
N8298Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Virginia
Standard 2015-05-14 ValidFAA registration status code V: Valid registration. All codes
N7453Y Piper
PA-30
Fixed-wing, multi-engine Stratus Air Services LLC
Punxsutawney, Pennsylvania
Standard 2015-05-04 ValidFAA registration status code V: Valid registration. All codes
N8765Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
New Jersey
Standard 2015-05-01 ValidFAA registration status code V: Valid registration. All codes
N53955 Bellanca
7KCAB
Fixed-wing, single engine Individual owner
Washington
Standard 2015-04-30 ValidFAA registration status code V: Valid registration. All codes
N8258Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Minnesota
Standard 2015-04-29 ValidFAA registration status code V: Valid registration. All codes
N8885Y Piper
PA-39
Fixed-wing, multi-engine Individual owner
Georgia
Standard 2015-04-28 ValidFAA registration status code V: Valid registration. All codes
N7747Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2015-04-21 ValidFAA registration status code V: Valid registration. All codes
N7366Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Colorado
Standard 2015-04-16 ValidFAA registration status code V: Valid registration. All codes
N7875Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Indiana
Standard 2015-04-16 ValidFAA registration status code V: Valid registration. All codes
N9064L Champion
7KCAB
Fixed-wing, single engine Co-owned owner
Montana
Standard 2015-04-15 ValidFAA registration status code V: Valid registration. All codes
N3EC Covington Edward L
SHA-GLASAIR
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2015-04-14 ValidFAA registration status code V: Valid registration. All codes
N88281 Bellanca
7KCAB
Fixed-wing, single engine Co-owned owner
Connecticut
Standard 2015-04-06 ValidFAA registration status code V: Valid registration. All codes
N26JG Garrett/Glasair
GLASAIR SH-2R
Fixed-wing, single engine Individual owner
Michigan
Experimental 2015-03-30 ValidFAA registration status code V: Valid registration. All codes
N8392Y Piper
PA-30
Fixed-wing, multi-engine Twinco Flyers LLC
Powell, Ohio
Standard 2015-03-27 ValidFAA registration status code V: Valid registration. All codes
N86573 Bellanca
8KCAB
Fixed-wing, single engine Phoenix Aviation Services INC
Miami, Florida
Standard 2015-03-25 ValidFAA registration status code V: Valid registration. All codes
N116GS Spittler Gerald
S-16 SHEKARI
Fixed-wing, single engine Individual owner
Idaho
Experimental 2015-03-20 ValidFAA registration status code V: Valid registration. All codes
N7689Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Rhode Island
Standard 2015-03-17 ValidFAA registration status code V: Valid registration. All codes
N8403Y Piper
PA-30
Fixed-wing, multi-engine Co-owned owner
California
Standard 2015-03-09 ValidFAA registration status code V: Valid registration. All codes
N8017Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
California
Standard 2015-02-26 ValidFAA registration status code V: Valid registration. All codes
N8815Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
North Carolina
Standard 2015-02-12 ValidFAA registration status code V: Valid registration. All codes
N12TL Champion
7KCAB
Fixed-wing, single engine Individual owner
Texas
Standard 2015-02-02 ValidFAA registration status code V: Valid registration. All codes
N25146 Silvaire
LUSCOMBE 8D
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2015-02-02 ValidFAA registration status code V: Valid registration. All codes
N8670Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Pennsylvania
Standard 2015-02-02 ValidFAA registration status code V: Valid registration. All codes
N7600Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2015-01-28 ValidFAA registration status code V: Valid registration. All codes
N214JN Piper
PA-30
Fixed-wing, multi-engine Fox-1 Drafting & Design INC
Eagan, Minnesota
Standard 2015-01-14 ValidFAA registration status code V: Valid registration. All codes
N89ZW Piper
PA-18-150
Fixed-wing, single engine Individual owner
Alaska
Standard 2015-01-13 ValidFAA registration status code V: Valid registration. All codes
N142DM Mitchell James R
LANCAIR 320
Fixed-wing, single engine Withheld at owner's request
Experimental 2015-01-12 ValidFAA registration status code V: Valid registration. All codes
N8053U Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2015-01-12 ValidFAA registration status code V: Valid registration. All codes
N8034Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
California
Standard 2015-01-06 ValidFAA registration status code V: Valid registration. All codes
N77340 Champion
8KCAB
Fixed-wing, single engine Slikker Enterprises INC
Bakersfield, California
Standard 2014-12-22 ValidFAA registration status code V: Valid registration. All codes
N8172 Begin-Starduster
SA-300
Fixed-wing, single engine Individual owner
Ohio
Experimental 2014-12-18 ValidFAA registration status code V: Valid registration. All codes
N916AR Lehmann
MUSTANG II
Fixed-wing, single engine Co-owned owner
Florida
Experimental 2014-12-16 ValidFAA registration status code V: Valid registration. All codes
N145H Hospodar Robert P
RV-4
Fixed-wing, single engine Co-owned owner
Illinois
Experimental 2014-12-09 ValidFAA registration status code V: Valid registration. All codes
N7952Y Piper
PA-30
Fixed-wing, multi-engine Co-owned owner
New Mexico
Standard 2014-11-10 ValidFAA registration status code V: Valid registration. All codes
N7050Y Piper
PA-30
Fixed-wing, multi-engine Tonys Aerial Service INC
Great Bend, Kansas
Standard 2014-10-29 ValidFAA registration status code V: Valid registration. All codes
N53897 Bellanca
7KCAB
Fixed-wing, single engine Naca 130 LLC
Cameron Park, California
Standard 2014-10-28 ValidFAA registration status code V: Valid registration. All codes
N97JN Nalbone John J
GLASAIR SH-2
Fixed-wing, single engine Individual owner
Oregon
Experimental 2014-10-27 ValidFAA registration status code V: Valid registration. All codes
N53834 Bellanca
8KCAB
Fixed-wing, single engine Individual owner
Arizona
Standard 2014-10-24 ValidFAA registration status code V: Valid registration. All codes
N8496Y Piper
PA-30
Fixed-wing, multi-engine Osiol Russell e
Chicago, Illinois
Standard 2014-10-16 ValidFAA registration status code V: Valid registration. All codes
N986GT Townsend Guy M Jr
TOWNSEND RV-4
Fixed-wing, single engine Co-owned owner
Texas
Experimental 2014-09-26 ValidFAA registration status code V: Valid registration. All codes
N7887Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2014-09-24 ValidFAA registration status code V: Valid registration. All codes
N86578 Bellanca
8KCAB
Fixed-wing, single engine Halpin Aviation
Eden Prairie, Minnesota
Standard 2014-09-22 ValidFAA registration status code V: Valid registration. All codes
N923HJ Humphrey Edwin J
GLASAIR I RG
Fixed-wing, single engine Individual owner
Alaska
Experimental 2014-09-17 ValidFAA registration status code V: Valid registration. All codes
N7463Y Piper
PA-30
Fixed-wing, multi-engine Skyway Flight Service LLC
Jonesboro, Arkansas
Standard 2014-09-08 ValidFAA registration status code V: Valid registration. All codes
N68517 Bellanca
8KCAB
Fixed-wing, single engine Individual owner
Oregon
Standard 2014-08-26 ValidFAA registration status code V: Valid registration. All codes
N7413Y Piper
PA-30
Fixed-wing, multi-engine Outka Air LLC
Aberdeen, South Dakota
Standard 2014-08-06 ValidFAA registration status code V: Valid registration. All codes
N8075Y Piper
PA-30
Fixed-wing, multi-engine Airplanes of Kankakee
Kankakee, Illinois
Standard 2014-07-24 ValidFAA registration status code V: Valid registration. All codes
N7638Y Piper
PA-30
Fixed-wing, multi-engine Scientific Motive Systems INC
Charlevoix, Michigan
Standard 2014-07-21 ValidFAA registration status code V: Valid registration. All codes
N8643 Bellanca
7KCAB
Fixed-wing, single engine Individual owner
Montana
Restricted 2014-07-17 ValidFAA registration status code V: Valid registration. All codes
N4YA Piper
PA-30
Fixed-wing, multi-engine Soaring Eagle Southwest LLC
Fort Mohave, Arizona
Standard 2014-07-10 ValidFAA registration status code V: Valid registration. All codes
N8946 Bellanca
7KCAB
Fixed-wing, single engine Individual owner
Texas
Standard 2014-06-17 ValidFAA registration status code V: Valid registration. All codes
N8458Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
California
Multiple 2014-06-16 ValidFAA registration status code V: Valid registration. All codes
N90965 Bellanca
8KCAB
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2014-06-16 ValidFAA registration status code V: Valid registration. All codes
N7544F Champion
7KCAB
Fixed-wing, single engine Grundy James W
West Greenwich, Rhode Island
Standard 2014-05-29 ValidFAA registration status code V: Valid registration. All codes
N400TD Piper
PA-30
Fixed-wing, multi-engine Individual owner
Idaho
Standard 2014-05-28 ValidFAA registration status code V: Valid registration. All codes
N8063Y Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2014-05-16 ValidFAA registration status code V: Valid registration. All codes
N31293 Bellanca
8KCAB
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2014-05-15 ValidFAA registration status code V: Valid registration. All codes
N8208Y Piper
PA-30
Fixed-wing, multi-engine Airswiss INC
Wilmington, Delaware
Standard 2014-05-14 ValidFAA registration status code V: Valid registration. All codes
N8CQ Carpenter
PITTS S-1
Fixed-wing, single engine Individual owner
Ohio
Experimental 2014-05-09 ValidFAA registration status code V: Valid registration. All codes
N38910 Monocoupe
90AF
Fixed-wing, single engine Sitta Donald C
Farmington, New Mexico
Standard 2014-04-30 ValidFAA registration status code V: Valid registration. All codes
N7127Y Piper
PA-30
Fixed-wing, multi-engine Spencer Avionics INC
Spencer, Iowa
Standard 2014-04-29 ValidFAA registration status code V: Valid registration. All codes
N776CH Piper
PA-30
Fixed-wing, multi-engine Individual owner
Texas
Standard 2014-04-23 ValidFAA registration status code V: Valid registration. All codes
N8548 Bellanca
8KCAB
Fixed-wing, single engine Collum Aviation LLC
Milton, Florida
Standard 2014-04-21 ValidFAA registration status code V: Valid registration. All codes
N30TJ Piper
PA-30
Fixed-wing, multi-engine Fiskars Equipment CO
Saint Joseph, Michigan
Standard 2014-04-09 ValidFAA registration status code V: Valid registration. All codes
N5083X Champion
7KCAB
Fixed-wing, single engine Flytails LLC
Pace, Mississippi
Standard 2014-04-01 ValidFAA registration status code V: Valid registration. All codes
N7570F Champion
7KCAB
Fixed-wing, single engine Individual owner
North Carolina
Standard 2014-03-10 ValidFAA registration status code V: Valid registration. All codes
N8GY Shelton James E
RV-4
Fixed-wing, single engine Co-owned owner
Oregon
Experimental 2014-03-04 ValidFAA registration status code V: Valid registration. 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 7, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.