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

Lycoming O-320 series

27,315 aircraft on the U.S. register carry a Lycoming O-320 series engine, rated at about 180 horsepower. The Cessna 172 Skyhawk is the model most often fitted with it (9,462 aircraft). The aircraft carrying it were built between 1949 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 series (2 codes). FAA spellings: 0-320 SERIES · O-320 SERIES.

Fitted to model families

Cessna 172 Skyhawk9,462Piper PA-28 Cherokee, Warrior, Archer and Arrow6,844Piper PA-18 Super Cub2,393Piper PA-22 Tri-Pacer and Colt1,660Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger566Bellanca 7 Citabria563Cessna 177 Cardinal398Piper PA-23 Apache and Aztec347Robinson R22276Champion 7 Citabria and Champ266American Champion Aircraft 7 Citabria and Champ249Piper PA-12 Super Cruiser149

Cessna 172 Skyhawk · Piper PA-28 Cherokee, Warrior, Archer and Arrow · Piper PA-18 Super Cub · Piper PA-22 Tri-Pacer and Colt · Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger · Bellanca 7 Citabria · Cessna 177 Cardinal · Piper PA-23 Apache and Aztec · Robinson R22 · Champion 7 Citabria and Champ

Where they are owner's state

Texas2,350California2,123Florida2,076Alaska1,796Washington1,004Ohio731Georgia718Minnesota686North Carolina674Arizona659

Kind of aircraft

Piston singles26,597 (97%)Piston twins414 (2%)Helicopters303 (1%)Gliders1 (0.0%)

When the aircraft were built by decade

02,8515,7028,55411,405193019401950196019701980199020002010552020

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

The design is held under 1 type certificate (E-274, 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 349 failure reports with the FAA since 1995, 19 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
2022-08-152022-16-03 · 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

All orders naming the Lycoming O-320 series

Failure reports 349 since · what operators and shops told the FAA

010203141950106111621426

Parts most often reported as the reports name them

Spar18Tube17Cylinder15Bulkhead9Alternator8Control Cable8Bolt7Carburetor7Fitting6Float6

Latest reports

2026-09-03Gascolator: dirty
2026-05-19Impulse Coupling: unserviceable
2026-03-10Cylinder Head: cracked
2026-03-05Cylinder: cracked
2025-11-24Cylinder: cracked

Certificates and bulletins

E-274Type certificate held by Lycoming Engines · 60 models listed · revised April 30, 2013

Safety bulletins 17 · advice, not orders

2022-09-26NE-06-31R6 · Engine Lubricating Oils
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,...

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-series.json · about the eFlight graph.

Aircraft newest certificates first · 27,315

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N91AN Vanatta Jerry N
VANS ACFT RV-9A
Fixed-wing, single engine Co-owned owner
Pennsylvania
Experimental 2025-09-13 ValidFAA registration status code V: Valid registration. All codes
N43FA Cessna
172N
Fixed-wing, single engine Kingsky Flight Academy LLC
Lakeland, Florida
Standard 2025-09-12 ValidFAA registration status code V: Valid registration. All codes
N8251S Piper
PA-28-161
Fixed-wing, single engine Airlife Aviation LLC
Elkridge, Maryland
Standard 2025-09-12 ValidFAA registration status code V: Valid registration. All codes
N93GM Patrick Paul C
RV-4
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2025-09-12 ValidFAA registration status code V: Valid registration. All codes
N1319U Cessna
172M
Fixed-wing, single engine Individual owner
District of Columbia
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N143DR Cessna
172M
Fixed-wing, single engine Oroca Flying Club LLC
Weehawken, New Jersey
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N15079 Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
Virginia
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N169BF Freckman Bill
ACRO SPORT II
Fixed-wing, single engine Individual owner
Minnesota
Experimental 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N184DA Aubuchon Derrick L
VANS RV-4
Fixed-wing, single engine Individual owner
California
Experimental 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N24B Brooks Randy
BRATZ CB-1
Fixed-wing, single engine Individual owner
California
Experimental 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N2596J Piper
PA-18-150
Fixed-wing, single engine Individual owner
California
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N4275J Piper
PA-28-140
Fixed-wing, single engine Eden Aviation LLC
Benbrook, Texas
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N494TM Cessna
172M
Fixed-wing, single engine Duke Flight Training LLC
Bonnyman, Kentucky
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N53600 Cessna
172N
Fixed-wing, single engine Kdrd Holdings LLC
Texas City, Texas
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N5908U Piper
PA-28-140
Fixed-wing, single engine Ecostudio Real Estate LLC
South Amboy, New Jersey
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N6514R Beech
B19
Fixed-wing, single engine Individual owner
Washington
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N79584 Cessna
172K
Fixed-wing, single engine Ocean Breeze Aviation INC
Wilton Manors, Florida
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N946CV Veale Charles W
VANS ACFT INC RV-6A
Fixed-wing, single engine Individual owner
Florida
Experimental 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N95365 Piper
PA-28-140
Fixed-wing, single engine Individual owner
Florida
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N9879Q Cessna
172M
Fixed-wing, single engine Coker Design Group LLC
Campobello, South Carolina
Standard 2025-09-11 ValidFAA registration status code V: Valid registration. All codes
N29444 Cessna
177
Fixed-wing, single engine Co-owned owner
Minnesota
Standard 2025-09-10 ValidFAA registration status code V: Valid registration. All codes
N906JB Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
New York
Standard 2025-09-10 ValidFAA registration status code V: Valid registration. All codes
N9510H Cessna
172M
Fixed-wing, single engine Withheld at owner's request
Standard 2025-09-10 ValidFAA registration status code V: Valid registration. All codes
N3405Z Piper
PA-22-150
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N5353W Piper
PA-28-160
Fixed-wing, single engine Individual owner
Georgia
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N5607W Piper
PA-28-160
Fixed-wing, single engine Co-owned owner
Michigan
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N626MJ Piper
PA-28-140
Fixed-wing, single engine Individual owner
Arizona
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N66189 Cessna
172P
Fixed-wing, single engine Skynick Enterprises INC
Tarzana, California
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N7430R Piper
PA-28-140
Fixed-wing, single engine Individual owner
Arizona
Standard 2025-09-09 ValidFAA registration status code V: Valid registration. All codes
N1545E Cessna
172N
Fixed-wing, single engine Slipstream Aviation LLC
Carrollton, Georgia
Standard 2025-09-08 ValidFAA registration status code V: Valid registration. All codes
N359AL Cessna
172M
Fixed-wing, single engine Tyson Aviation LLC
Sherrills Ford, North Carolina
Standard 2025-09-08 ValidFAA registration status code V: Valid registration. All codes
N26237 Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Aviyon Aviation LLC
Orlando, Florida
Standard 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N55380 Piper
PA-28-140
Fixed-wing, single engine Individual owner
Texas
Standard 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N67H Diehl William A
S4
Fixed-wing, single engine Individual owner
Alaska
None on file 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N752KF Kent Foster
VANS RV-9A
Fixed-wing, single engine Individual owner
Oregon
Experimental 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N79234 Cessna
172K
Fixed-wing, single engine Aig Aeronautics LLC
San Juan, Puerto Rico
Restricted 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N8896E Piper
PA-28-140
Fixed-wing, single engine N8896E LLC
Lake City, Florida
Standard 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N999NT Piper
PA-22-150
Fixed-wing, single engine Co-owned owner
Alaska
Standard 2025-09-06 ValidFAA registration status code V: Valid registration. All codes
N3596K Piper
PA-28-140
Fixed-wing, single engine Stall Breakers LLC
Sachse, Texas
Standard 2025-09-05 ValidFAA registration status code V: Valid registration. All codes
N24605 Beech
B19
Fixed-wing, single engine Individual owner
Georgia
Standard 2025-09-04 ValidFAA registration status code V: Valid registration. All codes
N5520F Piper
PA-28-140
Fixed-wing, single engine Chicago Air LLC
Chicago, Illinois
Standard 2025-09-04 ValidFAA registration status code V: Valid registration. All codes
N55PN Piper
PA-28-151
Fixed-wing, single engine Knot Mach LLC
Mchenry, Illinois
Standard 2025-09-04 ValidFAA registration status code V: Valid registration. All codes
N56592 Piper
PA-28-140
Fixed-wing, single engine Clw Aviation LLC
Springville, Alabama
Standard 2025-09-04 ValidFAA registration status code V: Valid registration. All codes
N217JB Emmons Carlos
STD-HMLTN GLASTAR
Fixed-wing, single engine Individual owner
North Carolina
Experimental 2025-09-03 ValidFAA registration status code V: Valid registration. All codes
N42062 Cessna
172M
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2025-09-03 ValidFAA registration status code V: Valid registration. All codes
N1914L Beech
B19
Fixed-wing, single engine Individual owner
Georgia
Standard 2025-09-02 ValidFAA registration status code V: Valid registration. All codes
N1937F Cessna
172N
Fixed-wing, single engine A2 Flight Leasing LLC
Castro Valley, California
Standard 2025-09-02 ValidFAA registration status code V: Valid registration. All codes
N79493 Cessna
172K
Fixed-wing, single engine Bounds Trucking LLC
Faison, North Carolina
Standard 2025-09-02 ValidFAA registration status code V: Valid registration. All codes
N9337C Piper
PA-28-161
Fixed-wing, single engine Individual owner
Texas
Standard 2025-09-02 ValidFAA registration status code V: Valid registration. All codes
N54214 Cessna
172P
Fixed-wing, single engine Halo Aviation Texas LLC
Fredericksburg, Texas
Standard 2025-08-28 ValidFAA registration status code V: Valid registration. All codes
N7345J Piper
PA-28-140
Fixed-wing, single engine Alpha 1 Aviation LLC
Helena, Alabama
Standard 2025-08-28 ValidFAA registration status code V: Valid registration. All codes
N734YD Cessna
172N
Fixed-wing, single engine Wings Over Texas Holdings LLC
Denton, Texas
Standard 2025-08-28 ValidFAA registration status code V: Valid registration. All codes
N9413D Piper
PA-22-160
Fixed-wing, single engine Ol Blue LLC
Salt Lake City, Utah
Standard 2025-08-28 ValidFAA registration status code V: Valid registration. All codes
N13383 Cessna
172M
Fixed-wing, single engine Alpha Aviation-1 LLC
Naples, Florida
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N20025 Cessna
172M
Fixed-wing, single engine Golden Eagle 025 LLC
Cary, North Carolina
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N2016P Piper
PA-23-150
Fixed-wing, multi-engine Individual owner
New York
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N2059K Luscombe
8E
Fixed-wing, single engine Individual owner
Georgia
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N21157 Cessna
172M
Fixed-wing, single engine Beta Fleet LLC
South Burlington, Vermont
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N26422 Grumman American Avn. Corp.
AA-5A
Fixed-wing, single engine Individual owner
Oregon
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N3137E Cessna
172N
Fixed-wing, single engine Withheld at owner's request
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N3544K Piper
PA-28-140
Fixed-wing, single engine Individual owner
Texas
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N4051P Piper
PA-23-160
Fixed-wing, multi-engine Eagle 64 LLC
Stuart, Florida
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N46015 Cessna
172I
Fixed-wing, single engine Leaders Flying Service LLC
Clear Lake, Minnesota
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N4865D Cessna
172N
Fixed-wing, single engine Black Hound Aviation LLC
Austin, Texas
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N5284D Cessna
172N
Fixed-wing, single engine Charlie Lima 1 LLC
Jacksonville, Florida
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N56RV Barber Dick
RV-6
Fixed-wing, single engine Individual owner
Washington
Experimental 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N64302 Cessna
172M
Fixed-wing, single engine Individual owner
Arkansas
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N7168M Cessna
175
Fixed-wing, single engine Individual owner
California
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N739JF Cessna
172N
Fixed-wing, single engine Sagori Aviation LLC
Orlando, Florida
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N747HC Posey Howard L
RV-4
Fixed-wing, single engine Individual owner
Michigan
Experimental 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N7880G Cessna
172L
Fixed-wing, single engine Individual owner
Alabama
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N82949 Piper
PA-18-150
Fixed-wing, single engine Individual owner
Colorado
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N8511F Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2025-08-27 ValidFAA registration status code V: Valid registration. All codes
N1463P Piper
PA-23-150
Fixed-wing, multi-engine Marc INC
Bolton, Mississippi
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N200EM Doyle Timothy
VANS RV-9A
Fixed-wing, single engine Individual owner
Oregon
Experimental 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N2818T Piper
PA-28-140
Fixed-wing, single engine Lb33 LLC
Helena, Montana
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N5471L Grumman American Avn. Corp.
AA-5
Fixed-wing, single engine Jc Investors Group LLC
Coral Springs, Florida
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N5564U Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N6010D Piper
PA-22-150
Fixed-wing, single engine Individual owner
Iowa
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N8387R Piper
PA-28-140
Fixed-wing, single engine Individual owner
Texas
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N8400L Cessna
172I
Fixed-wing, single engine Instant Print Signs & Designs LLC
Kalispell, Montana
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N9857G Cessna
172L
Fixed-wing, single engine Leaseair LLC
Wilmington, Delaware
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N9864G Cessna
172L
Fixed-wing, single engine Individual owner
Tennessee
Standard 2025-08-26 ValidFAA registration status code V: Valid registration. All codes
N4272H Piper
PA-14
Fixed-wing, single engine Individual owner
Alaska
Experimental 2025-08-25 ValidFAA registration status code V: Valid registration. All codes
N5099R Cessna
172M
Fixed-wing, single engine Fly High Aircraft Sales LLC
Ocilla, Georgia
Standard 2025-08-25 ValidFAA registration status code V: Valid registration. All codes
N172JD Cessna
172M
Fixed-wing, single engine Black Hound Aviation LLC
Austin, Texas
Standard 2025-08-24 ValidFAA registration status code V: Valid registration. All codes
N70282 Piper
J3C-65
Fixed-wing, single engine Individual owner
California
Standard 2025-08-24 ValidFAA registration status code V: Valid registration. All codes
N1996W Beech
B19
Fixed-wing, single engine Co-owned owner
Indiana
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N3116Q Maule
MXT-7-160
Fixed-wing, single engine Henderson State University
Arkadelphia, Arkansas
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N517SM Cessna
172K
Fixed-wing, single engine Individual owner
Texas
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N52818 Cessna
172P
Fixed-wing, single engine Aeroluxe Aviation LLC
Nashville, Tennessee
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N59PG Cessna
172L
Fixed-wing, single engine Stone Aviation Holdings LLC
Myrtle Beach, South Carolina
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N7827D Piper
PA-22-150
Fixed-wing, single engine Three Legged Hog Aviation LLC
Boise, Idaho
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N79270 Cessna
172K
Fixed-wing, single engine Jb Flight Services LLC
Carlsbad, New Mexico
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N9868Q Cessna
172M
Fixed-wing, single engine Stone Aviation Holdings LLC
Myrtle Beach, South Carolina
Standard 2025-08-23 ValidFAA registration status code V: Valid registration. All codes
N15592 Piper
PA-28-140
Fixed-wing, single engine Site Flight Services LLC
Monticello, Florida
Standard 2025-08-22 ValidFAA registration status code V: Valid registration. All codes
N235SR Piper
PA-28-161
Fixed-wing, single engine Draco Flight School DBA
Chino, California
Standard 2025-08-22 ValidFAA registration status code V: Valid registration. All codes
N370T Piper
PA-23-160
Fixed-wing, multi-engine Bellas Business LLC
Kalispell, Montana
Standard 2025-08-22 ValidFAA registration status code V: Valid registration. All codes
N40021 Piper
PA-28-161
Fixed-wing, single engine Individual owner
Louisiana
Standard 2025-08-22 ValidFAA registration status code V: Valid registration. All codes
N4129E Piper
PA-18-150
Fixed-wing, single engine Individual owner
Montana
Standard 2025-08-22 ValidFAA registration status code V: Valid registration. All codes
Previous Page 22 of 200 Next

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.