The U.S. aircraft register, updated daily
Engines · piston (reciprocating) · data as of October 9, 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.

When the aircraft were built by decade

By decade built, as a table
aircraft
19305
1940234
19502,383
19605,444
197011,405
19801,935
19901,132
2000831
201099
202055

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
Failure reports by year, as a table
reports
952
961
972
986
007
0139
0224
0339
0430
0541
0623
0732
0818
0915
1013
117
1210
134
146
152
169
171
186
191
203
211
232
251
264

Parts most often reported as the reports name them

Spar18Tube17Cylinder15Bulkhead9Alternator8Control Cable8Bolt7Carburetor7Fitting6Float6
Parts most reported, as a table
reports
Spar18
Tube17
Cylinder15
Bulkhead9
Alternator8
Control Cable8
Bolt7
Carburetor7
Fitting6
Float6

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

The whole map of how records connect · these connections as data: /graph/engine/lycoming-o-320-series.json.

Aircraft newest certificates first · 27,315

Tail no.Maker and modelGroupOwner and baseCertificateRegisteredStatus
N104FF Fuji
FA-200-160
Fixed-wing, single engine Plane Fun INC Tr Trustee
Snellville, Georgia
Standard 2021-11-15 ValidFAA registration status code V: Valid registration. All codes
N80116 Cessna
172M
Fixed-wing, single engine Laingkids LLC
Lewes, Delaware
Standard 2021-11-15 ValidFAA registration status code V: Valid registration. All codes
N118CB Champion
7GCAA
Fixed-wing, single engine N118Cb LLC
Westminster, Maryland
Standard 2021-11-13 ValidFAA registration status code V: Valid registration. All codes
N35707 Cessna
172I
Fixed-wing, single engine Pray Aviation INC
Augusta, Kansas
Standard 2021-11-13 ValidFAA registration status code V: Valid registration. All codes
N5205T Piper
PA-28-140
Fixed-wing, single engine Hangar 9 INC
Aberdeen, South Dakota
Standard 2021-11-13 ValidFAA registration status code V: Valid registration. All codes
N64433 Cessna
172M
Fixed-wing, single engine High Flight Academy LLC
Allison Park, Pennsylvania
Standard 2021-11-13 ValidFAA registration status code V: Valid registration. All codes
N4146J Piper
PA-28-140
Fixed-wing, single engine Individual owner
California
Standard 2021-11-12 ValidFAA registration status code V: Valid registration. All codes
N64161 Cessna
172M
Fixed-wing, single engine Aom Aircraft LLC
Orlando, Florida
Standard 2021-11-12 ValidFAA registration status code V: Valid registration. All codes
N7363G Cessna
172K
Fixed-wing, single engine Flying High Again LLC
Mount Juliet, Tennessee
Standard 2021-11-12 ValidFAA registration status code V: Valid registration. All codes
N9897Y Champion
7GCB
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-11-12 ValidFAA registration status code V: Valid registration. All codes
N62740 Cessna
172P
Fixed-wing, single engine Doomac LLC DBA
Peyton, Colorado
Standard 2021-11-10 ValidFAA registration status code V: Valid registration. All codes
N7262Q Cessna
172L
Fixed-wing, single engine Co-owned owner
California
Standard 2021-11-10 ValidFAA registration status code V: Valid registration. All codes
N9277H Cessna
172M
Fixed-wing, single engine Chorman Spraying LLC
Milton, Delaware
Standard 2021-11-10 ValidFAA registration status code V: Valid registration. All codes
N117TH Caldwell
PITTS SPECIAL S-1C
Fixed-wing, single engine Individual owner
Washington
Experimental 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N62706 Piper
PA-18-150
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N6309R Piper
PA-28-140
Fixed-wing, single engine Aerowolfe Aircraft Services LLC
Spokane, Washington
Standard 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N6313F Cessna
172N
Fixed-wing, single engine Teens In Flight INC
Palm Coast, Florida
Standard 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N70PF Piper
PA-28-161
Fixed-wing, single engine Swaz Aviation LLC
Mesa, Arizona
Standard 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N79FB Beeman Charles F
THORP T-18
Fixed-wing, single engine Individual owner
Florida
Experimental 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N9680P Piper
PA-18-150
Fixed-wing, single engine B407 LLC
Seattle, Washington
Restricted 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N9888W Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
California
Standard 2021-11-09 ValidFAA registration status code V: Valid registration. All codes
N13MP Piper
PA-28-151
Fixed-wing, single engine Powell & Powell LLC
Northport, Alabama
Standard 2021-11-08 ValidFAA registration status code V: Valid registration. All codes
N26880 Gulfstream American Corp
AA-5A
Fixed-wing, single engine Individual owner
New York
Special flight permit 2021-11-08 ValidFAA registration status code V: Valid registration. All codes
N122XX Selby George P
SPORTSMAN 2+2
Fixed-wing, single engine Gloss Mountain Aviation Foundation
Meno, Oklahoma
Experimental 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N1340T Piper
PA-28-140
Fixed-wing, single engine Maw Enterprises USA LLC
Hudson, Florida
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N283MB American Champion Aircraft
7GCBC
Fixed-wing, single engine Oakwood Air LLC
Sioux Falls, South Dakota
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N4088F Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N4380Z Piper
PA-18-150
Fixed-wing, single engine Mike Harmon Aviation LLC
Mansfield, South Dakota
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N6354R Piper
PA-28-140
Fixed-wing, single engine Individual owner
Oklahoma
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N64074 Cessna
172M
Fixed-wing, single engine Individual owner
Florida
Standard 2021-11-06 ValidFAA registration status code V: Valid registration. All codes
N4260J Piper
PA-28-140
Fixed-wing, single engine Individual owner
Michigan
Standard 2021-11-05 ValidFAA registration status code V: Valid registration. All codes
N691W Cessna
172P
Fixed-wing, single engine Eagle Simulator LLC
Lake Oswego, Oregon
Standard 2021-11-05 ValidFAA registration status code V: Valid registration. All codes
N699WP Wilken Jerry
RV6A
Fixed-wing, single engine Co-owned owner
Nevada
Experimental 2021-11-05 ValidFAA registration status code V: Valid registration. All codes
N1490E Cessna
172N
Fixed-wing, single engine Foothill Aircraft Sales & Service INC
Upland, California
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N16DB Cessna
172K
Fixed-wing, single engine Co-owned owner
Wisconsin
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N217S Shambaugh Robert D
CURTIS JR
Fixed-wing, single engine Legacy Leasing Group INC
Wilmington, Delaware
Experimental 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N40016 Piper
PA-28-161
Fixed-wing, single engine Miller Aircraft Services INC
Crookston, Minnesota
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N4520A Piper
PA-22-150
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N5383K Cessna
172P
Fixed-wing, single engine American Patrols INC
Midland, Texas
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N54067 Cessna
172P
Fixed-wing, single engine St Pete Aviation Services LLC
Saint Petersburg, Florida
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N647MT Cessna
172K
Fixed-wing, single engine Individual owner
Maine
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N738VB Cessna
172N
Fixed-wing, single engine Co-owned owner
Louisiana
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N7641R Beech
19A
Fixed-wing, single engine Co-owned owner
California
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N7779C Piper
PA-28-151
Fixed-wing, single engine Dicey Aviation LLC
Somerset, Kentucky
Standard 2021-11-04 ValidFAA registration status code V: Valid registration. All codes
N19688 Cessna
172L
Fixed-wing, single engine Vista Air INC
Pacoima, California
Standard 2021-11-03 ValidFAA registration status code V: Valid registration. All codes
N40972 Piper
PA-28-140
Fixed-wing, single engine Individual owner
Arizona
Standard 2021-11-03 ValidFAA registration status code V: Valid registration. All codes
N4954F Piper
PA-28-151
Fixed-wing, single engine Gq Aviation LLC
Cherry Hill, New Jersey
Standard 2021-11-03 ValidFAA registration status code V: Valid registration. All codes
N64250 Cessna
172M
Fixed-wing, single engine Ds Flight Services LLC
Battle Ground, Washington
Standard 2021-11-02 ValidFAA registration status code V: Valid registration. All codes
N739NT Cessna
172N
Fixed-wing, single engine Individual owner
New York
Standard 2021-11-02 ValidFAA registration status code V: Valid registration. All codes
N1481V Cessna
172M
Fixed-wing, single engine Individual owner
Florida
Standard 2021-11-01 ValidFAA registration status code V: Valid registration. All codes
N5598W Piper
PA-28-150
Fixed-wing, single engine Individual owner
Washington
Standard 2021-11-01 ValidFAA registration status code V: Valid registration. All codes
N5880W Piper
PA-28-160
Fixed-wing, single engine Individual owner
California
Standard 2021-11-01 ValidFAA registration status code V: Valid registration. All codes
N7185B Piper
PA-18-150
Fixed-wing, single engine Individual owner
Alaska
Multiple 2021-11-01 ValidFAA registration status code V: Valid registration. All codes
N8430D Piper
PA-22-150
Fixed-wing, single engine Co-owned owner
Missouri
Standard 2021-11-01 ValidFAA registration status code V: Valid registration. All codes
N2152P Piper
PA-23-150
Fixed-wing, multi-engine Individual owner
Arizona
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N25ES Cessna
172N
Fixed-wing, single engine General Aviation Support CORP
Rosamond, California
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N4116E Piper
PA-18-150
Fixed-wing, single engine Blr Aviation LLC
Eagle River, Wisconsin
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N455RT American Champion Aircraft
7GCAA
Fixed-wing, single engine Southern Genesis Aero LLC
Midland City, Alabama
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N7336J Piper
PA-28-140
Fixed-wing, single engine Key West Aviation LLC
Key West, Florida
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N7611F Cessna
172N
Fixed-wing, single engine General Aviation Support CORP
Rosamond, California
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N79533 Cessna
172K
Fixed-wing, single engine Individual owner
Illinois
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N9068S Robinson Helicopter
R22
Helicopter Individual owner
Washington
Standard 2021-10-30 ValidFAA registration status code V: Valid registration. All codes
N4806G Cessna
172N
Fixed-wing, single engine Co-owned owner
Georgia
Standard 2021-10-29 ValidFAA registration status code V: Valid registration. All codes
N5848A Allen John R
1 JRA
Fixed-wing, single engine Knight Farms INC
Pasco, Washington
Experimental 2021-10-29 ValidFAA registration status code V: Valid registration. All codes
N7045R Piper
PA-28-140
Fixed-wing, single engine 509 Aviation LLC
Lewes, Delaware
Standard 2021-10-29 ValidFAA registration status code V: Valid registration. All codes
N9859G Cessna
172L
Fixed-wing, single engine Landrum Craig L
Vinita, Oklahoma
Standard 2021-10-29 ValidFAA registration status code V: Valid registration. All codes
N172SR Cessna
172N
Fixed-wing, single engine Co-owned owner
California
Standard 2021-10-28 ValidFAA registration status code V: Valid registration. All codes
N5132X Champion
7GCBC
Fixed-wing, single engine Individual owner
South Dakota
Restricted 2021-10-28 ValidFAA registration status code V: Valid registration. All codes
N8135C Piper
PA-28-161
Fixed-wing, single engine Coverdale Aviation LLC
Ellendale, Delaware
Standard 2021-10-28 ValidFAA registration status code V: Valid registration. All codes
N131JH Henry James R
GLASTAR
Fixed-wing, single engine Individual owner
Tennessee
Experimental 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N20871 Cessna
172M
Fixed-wing, single engine High Flight Academy LLC
Allison Park, Pennsylvania
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N24595 Beech
B19
Fixed-wing, single engine Individual owner
California
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N342G Meyer J
RV-4 MODIFIED (JM-3)
Fixed-wing, single engine Co-owned owner
Washington
Experimental 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N5160 Rawdon
T1
Fixed-wing, single engine Historic Aircraft Restoration Museum
Maryland Heights, Missouri
Experimental 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N6341R Piper
PA-28-140
Fixed-wing, single engine Bethany Holdings LLC
Jamestown, North Carolina
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N80263 Cessna
172M
Fixed-wing, single engine Co-owned owner
New York
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N84330 Cessna
172K
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N9070W Piper
PA-28-235
Fixed-wing, single engine Uwharrie Flying Club INC
Albemarle, North Carolina
Standard 2021-10-27 ValidFAA registration status code V: Valid registration. All codes
N3999Z Piper
PA-18-150
Fixed-wing, single engine Individual owner
New York
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N4359 Wade
THORPE
Fixed-wing, single engine Individual owner
Kansas
Experimental 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N4634D Cessna
172N
Fixed-wing, single engine Co-owned owner
Texas
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N5068T Bellanca
7GCBC
Fixed-wing, single engine ABC Leasing INC
Oakdale, Louisiana
Restricted 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N5121Q Cessna
172M
Fixed-wing, single engine Co-owned owner
Kentucky
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N6900W Piper
PA-28-140
Fixed-wing, single engine Individual owner
Texas
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N79436 Cessna
172K
Fixed-wing, single engine Individual owner
California
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N8406L Cessna
172I
Fixed-wing, single engine Vee Neal Aviation
Latrobe, Pennsylvania
Standard 2021-10-26 ValidFAA registration status code V: Valid registration. All codes
N118EM Piper
PA-18A
Fixed-wing, single engine Co-owned owner
Oklahoma
Standard 2021-10-25 ValidFAA registration status code V: Valid registration. All codes
N3885X Aero Commander
100
Fixed-wing, single engine Individual owner
Florida
Standard 2021-10-25 ValidFAA registration status code V: Valid registration. All codes
N9284M Piper
PA-28-161
Fixed-wing, single engine Nationwide Aviation LLC
Hudson Oaks, Texas
Standard 2021-10-25 ValidFAA registration status code V: Valid registration. All codes
N15401 Piper
PA-28-140
Fixed-wing, single engine Individual owner
California
Standard 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N1863G Champion
7GCBC
Fixed-wing, single engine Individual owner
Alaska
Standard 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N3377Z Piper
PA-18-150
Fixed-wing, single engine Individual owner
Alaska
Multiple 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N53JH Hodge Jack C
RV-4
Fixed-wing, single engine Individual owner
Arizona
Experimental 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N88GG Glasgo
STARDUSTER II
Fixed-wing, single engine Individual owner
Georgia
Experimental 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N9176D Piper
PA-22-160
Fixed-wing, single engine Smaha Daniel B
Glide, Oregon
Standard 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N98652 Cessna
172P
Fixed-wing, single engine Co-owned owner
Pennsylvania
Standard 2021-10-23 ValidFAA registration status code V: Valid registration. All codes
N2XC Cessna
172M
Fixed-wing, single engine Co-owned owner
Oregon
Standard 2021-10-22 ValidFAA registration status code V: Valid registration. All codes
N42212 Cessna
172M
Fixed-wing, single engine Caves Xxi Properties LLC
Virginia Beach, Virginia
Standard 2021-10-22 ValidFAA registration status code V: Valid registration. All codes
N4569X Piper
PA-28-140
Fixed-wing, single engine Sequoias David O
Waxhaw, North Carolina
Standard 2021-10-22 ValidFAA registration status code V: Valid registration. All codes
N6234W Piper
PA-28-140
Fixed-wing, single engine Co-owned owner
Tennessee
Standard 2021-10-22 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 9, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.