Lycoming O-340 series
60 aircraft on the U.S. register carry a Lycoming O-340 series engine, rated at about 170 horsepower. The Cessna 170 is the model most often fitted with it (15 aircraft). The aircraft carrying it were built between 1946 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-340 series. FAA spelling: 0-340 SERIES.
Fitted to model families
Cessna 17015American AA-58Temco D-166Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger4Cessna 172 Skyhawk4Piper PA-28 Cherokee, Warrior, Archer and Arrow4Champion 7 Citabria and Champ2Aerocar ONE1Castlebary Tom GLASAIR1Conrad David J HATZ BIPLANE1David Smith DAVESMITH CUB1Fritz Kerry D LONG- EZ1
Cessna 170 · American AA-5 · Temco D-16 · Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger · Cessna 172 Skyhawk · Piper PA-28 Cherokee, Warrior, Archer and Arrow · Champion 7 Citabria and Champ · Aerocar ONE · Castlebary Tom GLASAIR · Conrad David J HATZ BIPLANE
Where they are owner's state
Texas9Alaska6Florida4Oregon3North Dakota3Georgia3Colorado3Pennsylvania2Ohio2Nevada2
Kind of aircraft
Piston singles52 (87%)Piston twins8 (13%)
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming O-340 series the component layer
The design is held under 1 type certificate (E-277, held by Lycoming Engines). The FAA has issued 13 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 4 failure reports with the FAA since 1995, 2 of them in the last ten years.
FAA orders 13 airworthiness directives · newest first
2026-04-082026-04-11 · Engine (Reciprocating) · engine
2024-12-052024-21-02 · Engine (Reciprocating) · engine
2012-03-272012-03-07 · Carburetor · engine
2004-06-252004-10-14 · Crankshaft gear · engine
1997-08-1297-15-11 · Cylinder kits · engine
1992-07-1092-12-05 · Piston Pins · engine
Failure reports 4 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Eyebolt1Gasket1Muffler1Throttle Arm1
Latest reports
2016-07-28Throttle Arm: loose
2009-10-05Gasket: failed
2001-11-29Eyebolt: misinstalled
2001-11-14Muffler: cracked
Certificates and bulletins
E-277Type certificate held by Lycoming Engines · 3 models listed · revised November 4, 2010
Safety bulletins 3 · advice, not orders
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 170 15 with this engine series
- American AA-5 8 with this engine series
- Temco D-16 6 with this engine series
- Grumman American Avn. Corp. AA-5 Traveler, Cheetah and Tiger 4 with this engine series
- Cessna 172 Skyhawk 4 with this engine series
- Piper PA-28 Cherokee, Warrior, Archer and Arrow 4 with this engine series
- Champion 7 Citabria and Champ 2 with this engine series
- Grumman American Avn. Corp. AA-1 Yankee and Trainer 1 with this engine series
Where they are
- Texas 9 of these aircraft
- Alaska 6 of these aircraft
- Florida 4 of these aircraft
- Oregon 3 of these aircraft
- North Dakota 3 of these aircraft
Biggest operators
- Paper Plane Aviation LLC 1 of these aircraft
- Mrd Aero LLC 1 of these aircraft
Airworthiness
- FAA orders naming the Lycoming O-340 series 13 airworthiness directives
- Failure reports on the Lycoming O-340 series 4 reports since 1995
Analytics
These connections as data: /graph/engine/lycoming-o-340-series.json · about the eFlight graph.
Aircraft newest certificates first · 60
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N6064L | American AA-5 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2026-09-30 | ValidFAA registration status code V: Valid registration. All codes |
| N4668C | Cessna 170B |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2026-09-18 | ValidFAA registration status code V: Valid registration. All codes |
| N5860A | Cessna 172 |
Fixed-wing, single engine | Mrd Aero LLC Manheim, Pennsylvania |
Standard | 2026-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N794AK | Junior Daniel DANCHINI CUB |
Fixed-wing, single engine | Flying Dutchman LLC Wasilla, Alaska |
Experimental | 2026-01-28 | ValidFAA registration status code V: Valid registration. All codes |
| N2400D | Cessna 170B |
Fixed-wing, single engine | Individual owner California |
Standard | 2025-11-29 | ValidFAA registration status code V: Valid registration. All codes |
| N119N | Riley D-16A |
Fixed-wing, multi-engine | Individual owner Pennsylvania |
Standard | 2025-11-03 | ValidFAA registration status code V: Valid registration. All codes |
| N25KF | Fritz Kerry D LONG- EZ |
Fixed-wing, single engine | Withheld at owner's request | Experimental | 2025-10-31 | ValidFAA registration status code V: Valid registration. All codes |
| N6044L | American AA-5 |
Fixed-wing, single engine | Individual owner North Carolina |
Standard | 2025-08-29 | ValidFAA registration status code V: Valid registration. All codes |
| N102Z | William Holland PA-18 REPLICA |
Fixed-wing, single engine | Individual owner Georgia |
None on file | 2025-06-18 | ValidFAA registration status code V: Valid registration. All codes |
| N170U | Cessna 170B |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2024-12-21 | ValidFAA registration status code V: Valid registration. All codes |
| N3433C | Cessna 170B |
Fixed-wing, single engine | Individual owner Ohio |
Standard | 2024-10-18 | ValidFAA registration status code V: Valid registration. All codes |
| N2878C | Cessna 170B |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2024-10-08 | ValidFAA registration status code V: Valid registration. All codes |
| N188AK | David Smith DAVESMITH CUB |
Fixed-wing, single engine | Individual owner Oregon |
Experimental | 2024-08-08 | ValidFAA registration status code V: Valid registration. All codes |
| N498FL | Piper PA-28-140 |
Fixed-wing, single engine | Paper Plane Aviation LLC Avon Park, Florida |
Standard | 2024-07-24 | ValidFAA registration status code V: Valid registration. All codes |
| N359FS | Maule M-7-235 |
Fixed-wing, single engine | Johnson Air LLC Anselmo, Nebraska |
Standard | 2024-07-19 | ValidFAA registration status code V: Valid registration. All codes |
| N1989C | Cessna 170B |
Fixed-wing, single engine | Individual owner Montana |
Standard | 2024-04-17 | ValidFAA registration status code V: Valid registration. All codes |
| N6382L | Grumman American Avn. Corp. AA-5 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2023-12-12 | ValidFAA registration status code V: Valid registration. All codes |
| N11061 | Champion 7ECA |
Fixed-wing, single engine | Naber Cattle CO Halsey, Nebraska |
Standard | 2023-08-30 | ValidFAA registration status code V: Valid registration. All codes |
| N131N | Temco D-16A |
Fixed-wing, multi-engine | Individual owner Arkansas |
Standard | 2023-05-13 | ValidFAA registration status code V: Valid registration. All codes |
| N9993Y | Champion 7GCBA |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 2023-05-02 | ValidFAA registration status code V: Valid registration. All codes |
| N2877M | Piper PA-28-181 |
Fixed-wing, single engine | Majors Flying Club Greenville, Texas |
Standard | 2023-02-20 | ValidFAA registration status code V: Valid registration. All codes |
| N706T | Universal TEMCO D-16A |
Fixed-wing, multi-engine | Individual owner Oklahoma |
Standard | 2022-12-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6072L | American AA-5 |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2022-11-28 | ValidFAA registration status code V: Valid registration. All codes |
| N8127 | Jacobson BUSHBY MUSTANG II |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2022-11-05 | ValidFAA registration status code V: Valid registration. All codes |
| N457FL | Piper PA-28-140 |
Fixed-wing, single engine | Individual owner Illinois |
Standard | 2022-08-04 | ValidFAA registration status code V: Valid registration. All codes |
| N708T | Temco D-16A |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 2021-10-29 | ValidFAA registration status code V: Valid registration. All codes |
| N688PA | Cessna 170B |
Fixed-wing, single engine | Individual owner Washington |
Standard | 2021-08-27 | ValidFAA registration status code V: Valid registration. All codes |
| N920JL | American AA-5 |
Fixed-wing, single engine | Baxley Aviation LLC Baxley, Georgia |
Standard | 2020-06-08 | ValidFAA registration status code V: Valid registration. All codes |
| N13696 | Cessna 172M |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2020-05-28 | ValidFAA registration status code V: Valid registration. All codes |
| N21PP | Underland G / Grothe L V-6 |
Fixed-wing, single engine | Clinton Pueppke Ayr, North Dakota |
Experimental | 2020-04-27 | ValidFAA registration status code V: Valid registration. All codes |
| N3190B | Cessna 170B |
Fixed-wing, single engine | Co-owned owner Nevada |
Standard | 2020-01-15 | ValidFAA registration status code V: Valid registration. All codes |
| N3472D | Cessna 170B |
Fixed-wing, single engine | Individual owner Minnesota |
Standard | 2019-09-06 | ValidFAA registration status code V: Valid registration. All codes |
| N6366L | Grumman American Avn. Corp. AA-5 |
Fixed-wing, single engine | Co-owned owner North Dakota |
Standard | 2019-06-07 | ValidFAA registration status code V: Valid registration. All codes |
| N6066L | Grumman American Avn. Corp. AA-5 |
Fixed-wing, single engine | Individual owner Texas |
Standard | 2019-03-01 | ValidFAA registration status code V: Valid registration. All codes |
| N6847D | Cessna 170B |
Fixed-wing, single engine | Pietron Spraying INC Larimore, North Dakota |
Standard | 2017-08-03 | ValidFAA registration status code V: Valid registration. All codes |
| N4669C | Cessna 170B |
Fixed-wing, single engine | Co-owned owner Alaska |
Restricted | 2017-07-27 | ValidFAA registration status code V: Valid registration. All codes |
| N108N | Temco D-16A |
Fixed-wing, multi-engine | Individual owner Texas |
Standard | 2017-01-18 | ValidFAA registration status code V: Valid registration. All codes |
| N213TC | Castlebary Tom GLASAIR |
Fixed-wing, single engine | L W Logsdon CORP INC Toledo, Ohio |
Experimental | 2016-09-22 | ValidFAA registration status code V: Valid registration. All codes |
| N65WM | Mcmillon Wesley B MCMILLON RV6 |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 2016-01-26 | ValidFAA registration status code V: Valid registration. All codes |
| N6073L | American AA-5 |
Fixed-wing, single engine | Individual owner Oregon |
Standard | 2015-12-08 | ValidFAA registration status code V: Valid registration. All codes |
| N170DG | Cessna 170B |
Fixed-wing, single engine | Bush Horizon INC Trustee Wilmington, Delaware |
Standard | 2012-03-08 | ValidFAA registration status code V: Valid registration. All codes |
| N112RS | Sheffield Raymond L VANS RV-6A |
Fixed-wing, single engine | Individual owner Colorado |
Experimental | 2012-01-12 | ValidFAA registration status code V: Valid registration. All codes |
| N2435D | Cessna 170B |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2010-01-13 | ValidFAA registration status code V: Valid registration. All codes |
| N103D | Aerocar ONE |
Fixed-wing, single engine | Co-owned owner Colorado |
Standard | 2007-06-28 | ValidFAA registration status code V: Valid registration. All codes |
| N4219F | Cessna 172 |
Fixed-wing, single engine | Co-owned owner Florida |
Standard | 2005-09-27 | ValidFAA registration status code V: Valid registration. All codes |
| N627FG | Piper PA-28RT-201 |
Fixed-wing, single engine | Individual owner Florida |
Standard | 2003-10-20 | ValidFAA registration status code V: Valid registration. All codes |
| N7051D | Piper PA-22-150 |
Fixed-wing, single engine | Individual owner Alaska |
Standard | 2003-02-04 | ValidFAA registration status code V: Valid registration. All codes |
| N6070L | American AA-5 |
Fixed-wing, single engine | Co-owned owner Connecticut |
Standard | 2001-04-12 | ValidFAA registration status code V: Valid registration. All codes |
| N3454C | Cessna 170B |
Fixed-wing, single engine | Individual owner California |
Standard | 2000-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N2909D | Cessna 170B |
Fixed-wing, single engine | Co-owned owner Alaska |
Standard | 1999-12-16 | ValidFAA registration status code V: Valid registration. All codes |
| N722T | Temco D-16A |
Fixed-wing, multi-engine | Iowa Aviation Heritage Museum Ankeny, Iowa |
Standard | 1999-08-25 | ValidFAA registration status code V: Valid registration. All codes |
| N9992L | Grumman American Avn. Corp. AA-1B |
Fixed-wing, single engine | Individual owner Texas |
Experimental | 1996-11-13 | ValidFAA registration status code V: Valid registration. All codes |
| N4RK | Cessna 172E |
Fixed-wing, single engine | Individual owner Alabama |
Standard | 1994-02-15 | ValidFAA registration status code V: Valid registration. All codes |
| N50DC | Conrad David J HATZ BIPLANE |
Fixed-wing, single engine | Individual owner Wisconsin |
Experimental | 1990-08-22 | ValidFAA registration status code V: Valid registration. All codes |
| N6180L | Grumman American Avn. Corp. AA-5 |
Fixed-wing, single engine | Aryvue INC Cordele, Georgia |
Standard | 1989-01-09 | ValidFAA registration status code V: Valid registration. All codes |
| N6088L | American AA-5 |
Fixed-wing, single engine | Individual owner Nevada |
Standard | 1979-09-05 | ValidFAA registration status code V: Valid registration. All codes |
| N13HX | Philip Hax HAX S-2 |
Fixed-wing, single engine | Individual owner Vermont |
Experimental | 1973-08-28 | ValidFAA registration status code V: Valid registration. All codes |
| N705T | Temco D-16A |
Fixed-wing, multi-engine | Individual owner Michigan |
Standard | 1970-02-12 | ValidFAA registration status code V: Valid registration. All codes |
| N6425L | American AA-5 |
Fixed-wing, single engine | Individual owner Michigan |
Standard | PendingFAA registration status code R: Registration pending. All codes | |
| N69ET | Temco D-16A |
Fixed-wing, multi-engine | Individual owner Idaho |
Standard | Sale reportedFAA registration status code 7. 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.