Lycoming O-360-A4K
44 aircraft on the U.S. register carry a Lycoming O-360-A4K engine, rated at about 180 horsepower. The Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger is the model most often fitted with it (17 aircraft). The aircraft carrying it were built between 1973 and 2022.
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-360-A4K. FAA spelling: O-360-A4K.
Fitted to model families
Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger17American General Acft Corp AG56Beechcraft C23 Sundowner5Gulfstream American Corp AA-54Andrew M Anunson COZY MKIV1B Richards/S Ruse/G Brown GLASAIR II-S FT1Bauer Richard STOL 2+21Dougherty Robert E RV-71Griffin Larry D VANS RV-7A1Gulfstream Aerospace Corp AG-5B1James R Populorum VANS AIRCRAFT RV-7A1Jordan Bruce C Jr PITTS SPECIAL S1S1
Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger · American General Acft Corp AG5 · Beechcraft C23 Sundowner · Gulfstream American Corp AA-5 · Andrew M Anunson COZY MKIV · B Richards/S Ruse/G Brown GLASAIR II-S FT · Bauer Richard STOL 2+2 · Dougherty Robert E RV-7 · Griffin Larry D VANS RV-7A · Gulfstream Aerospace Corp AG-5B
Where they are owner's state
Florida5California5Texas4North Carolina4Indiana3Oklahoma2Mississippi2Illinois2Alabama2Virginia1
Kind of aircraft
Piston singles44 (100%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming O-360-A4K the component layer
The design is held under 1 type certificate (E-286, 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 58 failure reports with the FAA since 1995, 11 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
2012-10-242012-19-01 · Crankshafts · engine
2012-03-272012-03-07 · Carburetor · engine
2008-10-202008-19-05 · Parallel Valve'' reciprocating engines · engine
Failure reports 58 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Cylinder7Valve4Bearing2Connecting Rod2Crankcase2Engine2Exhaust Valve2Float2Magneto2Rotor2
Latest reports
2023-12-01Seal: failed
2023-02-13Magneto: destroyed
2021-01-22Cover: dented
2019-09-22Cylinder: broken
2019-05-17Slip Ring: out of position
Certificates and bulletins
E-286Type certificate held by Lycoming Engines · 72 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
- Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger 17 with this engine series
- American General Acft Corp AG5 6 with this engine series
- Beechcraft C23 Sundowner 5 with this engine series
- Gulfstream American Corp AA-5 4 with this engine series
Where they are
- Florida 5 of these aircraft
- California 5 of these aircraft
- Texas 4 of these aircraft
- North Carolina 4 of these aircraft
- Indiana 3 of these aircraft
Biggest operators
- Vee Two INC 1 of these aircraft
- Qualitair LLC Trustee 1 of these aircraft
Airworthiness
- FAA orders naming the Lycoming O-360-A4K 18 airworthiness directives
- Failure reports on the Lycoming O-360-A4K 58 reports since 1995
Analytics
These connections as data: /graph/engine/lycoming-o-360-a4k.json · about the eFlight graph.
Aircraft newest certificates first · 44
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N9648B | Michael A Mcgrew HARTZ CLASSIC |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2026-05-05 | ValidFAA registration status code V: Valid registration. All codes |
| N296HL | Beech C23 |
Fixed-wing, single engine | Individual owner AE |
Standard | 2025-11-25 | ValidFAA registration status code V: Valid registration. All codes |
| N174BN | Dougherty Robert E RV-7 |
Fixed-wing, single engine | Individual owner Ohio |
Experimental | 2025-11-24 | ValidFAA registration status code V: Valid registration. All codes |
| N897GA | American General Acft Corp AG5B |
Fixed-wing, single engine | Individual owner Michigan |
Standard | 2025-09-15 | ValidFAA registration status code V: Valid registration. All codes |
| N681FS | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner California |
Standard | 2024-12-13 | ValidFAA registration status code V: Valid registration. All codes |
| N1007C | American General Acft Corp AG5B |
Fixed-wing, single engine | Vee Two INC Merritt Island, Florida |
Standard | 2024-05-29 | ValidFAA registration status code V: Valid registration. All codes |
| N731PK | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | C & M Properties LLC Chesterton, Indiana |
Standard | 2024-05-08 | ValidFAA registration status code V: Valid registration. All codes |
| N614PW | Beech C23 |
Fixed-wing, single engine | Alpha Victor 8 LLC Broken Arrow, Oklahoma |
Standard | 2024-04-04 | ValidFAA registration status code V: Valid registration. All codes |
| N82ZA | American General Acft Corp AG5B |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2023-08-07 | ValidFAA registration status code V: Valid registration. All codes |
| N1420 | American General Acft Corp AG5B |
Fixed-wing, single engine | N5504R LLC Jefferson City, Missouri |
Standard | 2023-05-06 | ValidFAA registration status code V: Valid registration. All codes |
| N28534 | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Co-owned owner Indiana |
Standard | 2023-05-03 | ValidFAA registration status code V: Valid registration. All codes |
| N148RR | Gulfstream American Corp AA-5B |
Fixed-wing, single engine | Individual owner California |
Standard | 2022-06-15 | ValidFAA registration status code V: Valid registration. All codes |
| N889D | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Qualitair LLC Trustee Michelstadt, |
Standard | 2022-04-26 | ValidFAA registration status code V: Valid registration. All codes |
| N267MT | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Plane Fun INC Tr Trustee Snellville, Georgia |
Standard | 2021-12-13 | ValidFAA registration status code V: Valid registration. All codes |
| N624AC | Andrew M Anunson COZY MKIV |
Fixed-wing, single engine | Individual owner Virginia |
Experimental | 2021-03-01 | ValidFAA registration status code V: Valid registration. All codes |
| N28423 | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Co-owned owner Florida |
Standard | 2020-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N997VB | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2020-06-09 | ValidFAA registration status code V: Valid registration. All codes |
| N63732 | Beech C23 |
Fixed-wing, single engine | Aeronation Aircraft & Exotics LLC Lewes, Delaware |
Standard | 2020-05-12 | ValidFAA registration status code V: Valid registration. All codes |
| N835S | William E Prewitt ACROSPORT II |
Fixed-wing, single engine | Spirit of Flight LLC Noblesville, Indiana |
Experimental | 2020-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N9215S | Beech C23 |
Fixed-wing, single engine | Individual owner Alabama |
Standard | 2019-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N16PX | Gulfstream American Corp AA-5B |
Fixed-wing, single engine | Co-owned owner Arkansas |
Standard | 2019-09-11 | ValidFAA registration status code V: Valid registration. All codes |
| N800GT | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner Tennessee |
Standard | 2019-08-27 | ValidFAA registration status code V: Valid registration. All codes |
| N111LA | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Co-owned owner Mississippi |
Standard | 2019-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N626FT | American General Acft Corp AG5B |
Fixed-wing, single engine | 626Ft LLC Los Angeles, California |
Experimental | 2019-05-14 | ValidFAA registration status code V: Valid registration. All codes |
| N80SC | B Richards/S Ruse/G Brown GLASAIR II-S FT |
Fixed-wing, single engine | Richards Brian Aledo, Texas |
Experimental | 2019-02-07 | ValidFAA registration status code V: Valid registration. All codes |
| N470RP | James R Populorum VANS AIRCRAFT RV-7A |
Fixed-wing, single engine | Daytona Aircraft Services INC Daytona Beach, Florida |
Experimental | 2018-08-08 | ValidFAA registration status code V: Valid registration. All codes |
| N663SM | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner New Jersey |
Standard | 2018-07-11 | ValidFAA registration status code V: Valid registration. All codes |
| N591JP | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2018-06-04 | ValidFAA registration status code V: Valid registration. All codes |
| N455TA | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2018-03-14 | ValidFAA registration status code V: Valid registration. All codes |
| N6464Z | Gulfstream American Corp AA-5B |
Fixed-wing, single engine | Flying Tiger LLC Birmingham, Alabama |
Standard | 2017-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N14YU | Gulfstream Aerospace Corp AG-5B |
Fixed-wing, single engine | International Air Services INC Trustee Carson City, Nevada |
Standard | 2016-03-25 | ValidFAA registration status code V: Valid registration. All codes |
| N23HK | Beech C23 |
Fixed-wing, single engine | Maine Instrument Flight Augusta, Maine |
Standard | 2015-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N133U | American General Acft Corp AG5B |
Fixed-wing, single engine | Orion Future Data LLC Sarasota, Florida |
Standard | 2014-06-26 | ValidFAA registration status code V: Valid registration. All codes |
| N90898 | Woodard Osceola RV-6A |
Fixed-wing, single engine | Individual owner Utah |
Experimental | 2013-12-17 | ValidFAA registration status code V: Valid registration. All codes |
| N81283 | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner Oklahoma |
Standard | 2013-08-12 | ValidFAA registration status code V: Valid registration. All codes |
| N254L | Bauer Richard STOL 2+2 |
Fixed-wing, single engine | Individual owner Illinois |
Experimental | 2012-08-09 | ValidFAA registration status code V: Valid registration. All codes |
| N300RF | Jordan Bruce C Jr PITTS SPECIAL S1S |
Fixed-wing, single engine | Individual owner North Carolina |
Experimental | 2012-06-12 | ValidFAA registration status code V: Valid registration. All codes |
| N801X | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Mississippi State University Starkville, Mississippi |
Standard | 2011-12-15 | ValidFAA registration status code V: Valid registration. All codes |
| N774DS | Rosebud Llc RV7 |
Fixed-wing, single engine | Rosebud LLC Libertyville, Illinois |
Experimental | 2011-09-26 | ValidFAA registration status code V: Valid registration. All codes |
| N468BC | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Hot Wings Flying Club LLC Portland, Oregon |
Standard | 2009-04-10 | ValidFAA registration status code V: Valid registration. All codes |
| N74LG | Griffin Larry D VANS RV-7A |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2009-02-17 | ValidFAA registration status code V: Valid registration. All codes |
| N28747 | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner California |
Experimental | 2004-09-24 | ValidFAA registration status code V: Valid registration. All codes |
| N721ZM | Grumman American Avn. Corp. AA-5B |
Fixed-wing, single engine | Individual owner California |
Standard | 1999-07-21 | ValidFAA registration status code V: Valid registration. All codes |
| N45191 | Gulfstream American Corp AA-5B |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 1993-01-05 | 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.