Lycoming O-320-H2AD
83 aircraft on the U.S. register carry a Lycoming O-320-H2AD engine, rated at about 160 horsepower. The Cessna 172 Skyhawk is the model most often fitted with it (34 aircraft). The aircraft carrying it were built between 1975 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-H2AD. FAA spelling: O-320-H2AD.
Fitted to model families
Cessna 172 Skyhawk34Bishop Frank CHRISTAVIA MK 11Cada Timothy G HATZ CLASSIC1Clawson Walter RV-61Compton Andrew J RV9A1Cortright Art CORTRGT ART CORTAERO1Cowan Philip RV-9A KIT1Cretsinger W B RV-6A1Dgt Partners Llc RV-6A1Dickinson Richard Neil Jr VANS RV-8A1Dickman Edward A PACER 1751Dillon Gregory A RV-9A1
Cessna 172 Skyhawk · Bishop Frank CHRISTAVIA MK 1 · Cada Timothy G HATZ CLASSIC · Clawson Walter RV-6 · Compton Andrew J RV9A · Cortright Art CORTRGT ART CORTAERO · Cowan Philip RV-9A KIT · Cretsinger W B RV-6A · Dgt Partners Llc RV-6A · Dickinson Richard Neil Jr VANS RV-8A
Where they are owner's state
Texas9Washington6Florida6New Jersey5North Carolina4Ohio3Missouri3Minnesota3Indiana3Iowa3
Kind of aircraft
Piston singles80 (96%)Helicopters2 (2%)Gliders1 (1%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming O-320-H2AD the component layer
The design is held under 1 type certificate (E-274, held by Lycoming Engines). The FAA has issued 21 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 326 failure reports with the FAA since 1995, 16 of them in the last ten years.
FAA orders 21 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
2006-01-312005-26-10 · ECi cylinder assemblies. · engine
2002-07-032002-12-07 · Oil Filter Converter Plate Gasket or the Converter Plate Kit · engine
Failure reports 326 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Magneto17Lifter13Stud12Crankshaft11Carburetor9Bearing8Engine8Valve8Cylinder7Points7
Latest reports
2025-09-02Control Cable: broken
2025-06-18Crankcase: cracked
2022-07-01None: none
2021-06-08Windscreen: scratched
2020-10-05Cylinder: cracked
Certificates and bulletins
E-274Type certificate held by Lycoming Engines · 60 models listed · revised April 30, 2013
Safety bulletins 12 · 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
- Cessna 172 Skyhawk 34 with this engine series
Where they are
- Texas 9 of these aircraft
- Washington 6 of these aircraft
- Florida 6 of these aircraft
- New Jersey 5 of these aircraft
- North Carolina 4 of these aircraft
Biggest operators
- Wings Over Texas Holdings LLC 1 of these aircraft
- Vero Technical Support INC 1 of these aircraft
Airworthiness
- FAA orders naming the Lycoming O-320-H2AD 21 airworthiness directives
- Failure reports on the Lycoming O-320-H2AD 326 reports since 1995
Analytics
These connections as data: /graph/engine/lycoming-o-320-h2ad.json · about the eFlight graph.
Aircraft newest certificates first · 83
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N5113K | Cessna 172N |
Fixed-wing, single engine | Parrillo Development and Real Estate LLC Sarasota, Florida |
Standard | 2026-06-10 | ValidFAA registration status code V: Valid registration. All codes |
| N258AC | Cortright Art CORTRGT ART CORTAERO |
Fixed-wing, single engine | Mcquack Aviation LLC Belding, Michigan |
Experimental | 2026-05-10 | ValidFAA registration status code V: Valid registration. All codes |
| N737CB | Cessna 172N |
Fixed-wing, single engine | R&R Aero Services LLC Eden Prairie, Minnesota |
Standard | 2026-05-04 | ValidFAA registration status code V: Valid registration. All codes |
| N816BB | Harrington BREEZY |
Fixed-wing, single engine | Individual owner Tennessee |
Experimental | 2026-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N72SA | Cessna 172N |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2026-02-24 | ValidFAA registration status code V: Valid registration. All codes |
| N49MQ | Cessna 172N |
Fixed-wing, single engine | Sgl Aviation LLC Fairfield, New Jersey |
Standard | 2026-01-03 | ValidFAA registration status code V: Valid registration. All codes |
| N734ZY | Cessna 172N |
Fixed-wing, single engine | Wings Over Texas Holdings LLC Denton, Texas |
Standard | 2025-12-06 | ValidFAA registration status code V: Valid registration. All codes |
| N1182T | Grayson Robert E HOLLMANN HA-2-M |
Rotorcraft | Individual owner Washington |
Experimental | 2025-12-02 | ValidFAA registration status code V: Valid registration. All codes |
| N767JJ | Lambert Lloyd M STARDUSTER TOO |
Fixed-wing, single engine | Liberty Aero Executives LLC Carmel, Indiana |
Experimental | 2025-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N9283C | Cessna 172N |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 2025-07-23 | ValidFAA registration status code V: Valid registration. All codes |
| N4793F | Cessna 172N |
Fixed-wing, single engine | Citizen Air LLC Port Angeles, Washington |
Multiple | 2025-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N734JR | Cessna 172N |
Fixed-wing, single engine | Traveling Toes LLC Wilmington, Delaware |
Standard | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N88CF | Michael H Foley VANS RV 6A |
Fixed-wing, single engine | Individual owner Montana |
Experimental | 2025-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N4920G | Cessna 172N |
Fixed-wing, single engine | Eye Candy Aviation LLC Jacksonville, Florida |
Standard | 2025-03-31 | ValidFAA registration status code V: Valid registration. All codes |
| N59KT | Cada Timothy G HATZ CLASSIC |
Fixed-wing, single engine | Co-owned owner Iowa |
Experimental | 2025-02-08 | ValidFAA registration status code V: Valid registration. All codes |
| N23JP | Steckler Stephen T BAKENG DUCE |
Fixed-wing, single engine | Individual owner New Jersey |
Experimental | 2024-11-23 | ValidFAA registration status code V: Valid registration. All codes |
| N205DD | Sloan David W VANS RV-3B |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2024-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N86WC | Cretsinger W B RV-6A |
Fixed-wing, single engine | Individual owner Mississippi |
Experimental | 2024-08-21 | ValidFAA registration status code V: Valid registration. All codes |
| N734GY | Cessna 172N |
Fixed-wing, single engine | Fisher Global LLC Conway, Arkansas |
Restricted | 2024-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N738DF | Cessna 172N |
Fixed-wing, single engine | N738Df LLC Greenville, South Carolina |
Restricted | 2024-08-19 | ValidFAA registration status code V: Valid registration. All codes |
| N2226K | Zinger Stan GYROPLANE |
Rotorcraft | Individual owner Ohio |
Experimental | 2024-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N2994E | Cessna 172N |
Fixed-wing, single engine | Skyventure Aviation LLC Battle Creek, Michigan |
Multiple | 2024-07-17 | ValidFAA registration status code V: Valid registration. All codes |
| N321DF | J W Jeffery MURPHY ELITE |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2024-03-29 | ValidFAA registration status code V: Valid registration. All codes |
| N320DT | E A Bauer/S Spletzer VANS RV-6A |
Fixed-wing, single engine | Individual owner Ohio |
Experimental | 2024-03-20 | ValidFAA registration status code V: Valid registration. All codes |
| N269JT | Dgt Partners Llc RV-6A |
Fixed-wing, single engine | Individual owner Massachusetts |
Experimental | 2024-01-29 | ValidFAA registration status code V: Valid registration. All codes |
| N7791 | Cessna 172N |
Fixed-wing, single engine | H2 Aviation LLC Middlebury, Indiana |
Standard | 2023-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N194TT | Cowan Philip RV-9A KIT |
Fixed-wing, single engine | Cactus Aviators LLC Cave Creek, Arizona |
Experimental | 2023-09-20 | ValidFAA registration status code V: Valid registration. All codes |
| N56FA | Cessna 172N |
Fixed-wing, single engine | Silver Express CO DBA Miami, Florida |
Standard | 2023-09-19 | ValidFAA registration status code V: Valid registration. All codes |
| N668PT | Michael T Cooper PITTS S1C |
Fixed-wing, single engine | Individual owner Iowa |
Experimental | 2023-03-29 | ValidFAA registration status code V: Valid registration. All codes |
| N428WJ | Watts W/Boddy G FALCO F-8L |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2023-03-28 | ValidFAA registration status code V: Valid registration. All codes |
| N734RB | Cessna 172N |
Fixed-wing, single engine | Aerospace Trust Management LLC Trustee Wilmington, Delaware |
Standard | 2023-03-22 | ValidFAA registration status code V: Valid registration. All codes |
| N61LT | Odell Steve LITTLE TOOT |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2023-03-03 | ValidFAA registration status code V: Valid registration. All codes |
| N80PY | Raymond M Muntz VANS-RV6A |
Fixed-wing, single engine | Individual owner New York |
Experimental | 2023-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N915K | Hillis T L SPACEWALKER |
Fixed-wing, single engine | Individual owner Iowa |
Experimental | 2023-01-07 | ValidFAA registration status code V: Valid registration. All codes |
| N644PW | Wooten Jerry W VANS EXPERIMENTL RV6 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2022-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N86WD | Droullard William E RV-6A |
Fixed-wing, single engine | Individual owner Washington |
Experimental | 2022-09-07 | ValidFAA registration status code V: Valid registration. All codes |
| N167AM | Moscarelli Andrew RV6A |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2022-07-07 | ValidFAA registration status code V: Valid registration. All codes |
| N3364E | Cessna 172N |
Fixed-wing, single engine | Plsr LLC Denton, Texas |
Standard | 2022-01-05 | ValidFAA registration status code V: Valid registration. All codes |
| N6607D | Cessna 172N |
Fixed-wing, single engine | Vero Technical Support INC Pensacola, Florida |
Multiple | 2021-10-26 | ValidFAA registration status code V: Valid registration. All codes |
| N116ES | Edward H Olson CB1 |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2021-09-08 | ValidFAA registration status code V: Valid registration. All codes |
| N6093 | Dickman Edward A PACER 175 |
Fixed-wing, single engine | Co-owned owner Idaho |
Experimental | 2021-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N8435E | Cessna 172N |
Fixed-wing, single engine | Individual owner Oregon |
Multiple | 2021-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N91AG | Harold E Agee MUSTANG II |
Fixed-wing, single engine | Individual owner Louisiana |
Experimental | 2020-09-02 | ValidFAA registration status code V: Valid registration. All codes |
| N6387F | Cessna 172N |
Fixed-wing, single engine | Individual owner Texas |
Multiple | 2020-08-31 | ValidFAA registration status code V: Valid registration. All codes |
| N4808D | Cessna 172N |
Fixed-wing, single engine | Lmnb LLC Centreville, Virginia |
Standard | 2019-12-18 | ValidFAA registration status code V: Valid registration. All codes |
| N337CA | Cessna 172N |
Fixed-wing, single engine | Co-owned owner California |
Standard | 2019-12-06 | ValidFAA registration status code V: Valid registration. All codes |
| N109EH | E C Hickey DURAND MK V |
Fixed-wing, single engine | Individual owner Minnesota |
Experimental | 2019-07-15 | ValidFAA registration status code V: Valid registration. All codes |
| N734RP | Cessna 172N |
Fixed-wing, single engine | Cf Images LLC Fairfield, New Jersey |
Standard | 2019-06-24 | ValidFAA registration status code V: Valid registration. All codes |
| N75ER | Cessna 172N |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2018-11-17 | ValidFAA registration status code V: Valid registration. All codes |
| N16AV | Kent J Ashton ZIPPER |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2018-01-17 | ValidFAA registration status code V: Valid registration. All codes |
| N594R | Trombley Roger W VANS RV 8 |
Fixed-wing, single engine | Individual owner New York |
Experimental | 2017-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N142KS | Soares Ken J RV9A |
Fixed-wing, single engine | Individual owner Washington |
Experimental | 2017-07-26 | ValidFAA registration status code V: Valid registration. All codes |
| N7562F | Cessna 172N |
Fixed-wing, single engine | Green Airports Development CORP Kemah, Texas |
Restricted | 2017-06-29 | ValidFAA registration status code V: Valid registration. All codes |
| N980RV | Laplante Bryan RV-6A |
Fixed-wing, single engine | Laplante Bryan G Murrieta, California |
Experimental | 2015-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N505XC | Kirbybilt Aircraft XCALIBUR |
Fixed-wing, single engine | Individual owner Alaska |
Experimental | 2015-09-29 | ValidFAA registration status code V: Valid registration. All codes |
| N737HD | Cessna 172N |
Fixed-wing, single engine | Co-owned owner Missouri |
Standard | 2015-06-22 | ValidFAA registration status code V: Valid registration. All codes |
| N738JF | Cessna 172N |
Fixed-wing, single engine | Copperhead Environmental Consulting INC Paint Lick, Kentucky |
Restricted | 2015-01-22 | ValidFAA registration status code V: Valid registration. All codes |
| N495AB | Smith Alan L RV6 |
Fixed-wing, single engine | Individual owner Nebraska |
Experimental | 2015-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N49VC | Compton Andrew J RV9A |
Fixed-wing, single engine | Individual owner Florida |
Experimental | 2014-09-17 | ValidFAA registration status code V: Valid registration. All codes |
| N706BK | Bishop Frank CHRISTAVIA MK 1 |
Fixed-wing, single engine | Individual owner Indiana |
Experimental | 2014-08-06 | ValidFAA registration status code V: Valid registration. All codes |
| N5512E | Cessna 172N |
Fixed-wing, single engine | Morcom Aviation Services INC DBA Everett, Washington |
Standard | 2014-06-19 | ValidFAA registration status code V: Valid registration. All codes |
| N4603X | Dillon Gregory A RV-9A |
Fixed-wing, single engine | Individual owner California |
Experimental | 2013-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N5AK | Cessna 172N |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2013-08-07 | ValidFAA registration status code V: Valid registration. All codes |
| N4775D | Cessna 172N |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2013-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N1XM | Mansur CVJETKOVIC |
Fixed-wing, single engine | Individual owner Kansas |
Experimental | 2013-01-16 | ValidFAA registration status code V: Valid registration. All codes |
| N8078Q | Clawson Walter RV-6 |
Fixed-wing, single engine | Withheld at owner's request | Experimental | 2012-10-05 | ValidFAA registration status code V: Valid registration. All codes |
| N106GL | Eaa 106 Builders Group STODDARDHAMILTONGLAS |
Fixed-wing, single engine | Individual owner Massachusetts |
Experimental | 2011-12-15 | ValidFAA registration status code V: Valid registration. All codes |
| N33EY | Young Robert E RV-3B |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2011-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N832DC | Cessna 172N |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2011-08-15 | ValidFAA registration status code V: Valid registration. All codes |
| N6609D | Cessna 172N |
Fixed-wing, single engine | Copperhead Environmental Consulting INC Paint Lick, Kentucky |
Restricted | 2011-05-11 | ValidFAA registration status code V: Valid registration. All codes |
| N76WE | Englert William VANS RV-4 |
Glider | Individual owner North Carolina |
Experimental | 2010-12-20 | ValidFAA registration status code V: Valid registration. All codes |
| N163CM | Mcdonough Curtis A RV-6A |
Fixed-wing, single engine | Withheld at owner's request | Experimental | 2010-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N8081H | Thornton J T VANS RV-4 |
Fixed-wing, single engine | Individual owner Missouri |
Experimental | 2009-08-11 | ValidFAA registration status code V: Valid registration. All codes |
| N1909K | Keith Russell A VANS RV-9A |
Fixed-wing, single engine | Individual owner Maine |
Experimental | 2009-02-10 | ValidFAA registration status code V: Valid registration. All codes |
| N517JP | Jones Jerry K VANS RV-9A |
Fixed-wing, single engine | Co-owned owner Utah |
Experimental | 2007-09-20 | ValidFAA registration status code V: Valid registration. All codes |
| N7374E | Cessna 172N |
Fixed-wing, single engine | Wings As Eagles Mission Air Service INC Oshkosh, Wisconsin |
Standard | 2007-08-24 | ValidFAA registration status code V: Valid registration. All codes |
| N92NV | Hornor J W/Schneider W J Jr VANS RV-9A |
Fixed-wing, single engine | Co-owned owner Florida |
Experimental | 2006-03-17 | ValidFAA registration status code V: Valid registration. All codes |
| N6123A | Doris Thomas K RV-6A |
Fixed-wing, single engine | Individual owner New Jersey |
Experimental | 2005-08-02 | ValidFAA registration status code V: Valid registration. All codes |
| N221RL | Lorenz Richard RV4 |
Fixed-wing, single engine | Individual owner Minnesota |
Experimental | 2005-02-11 | ValidFAA registration status code V: Valid registration. All codes |
| N816ND | Dickinson Richard Neil Jr VANS RV-8A |
Fixed-wing, single engine | Individual owner Maryland |
Experimental | 2004-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N53FB | Cessna 172N |
Fixed-wing, single engine | Co-owned owner Illinois |
Standard | 1988-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N3977G | Gordon Scot A RV-6A |
Fixed-wing, single engine | Individual owner Missouri |
Experimental | ValidFAA registration status code V: Valid registration. All codes | |
| N734AC | Cessna 172N |
Fixed-wing, single engine | Rich Lucas Aircraft Sales LLC Lincoln Park, New Jersey |
Standard | 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 5, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.