Lycoming IO-720-A1B
8 aircraft on the U.S. register carry a Lycoming IO-720-A1B engine, rated at about 400 horsepower. The Piper PA-24 Comanche is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1960 and 1976.
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 IO-720-A1B. FAA spelling: IO-720-A1B.
Fitted to model families
Piper PA-24 Comanche · Beechcraft 65 · Macchi AL60-F5 · Piper PA-36 Pawnee Brave · Sturgis Robert COMPAIR 7 · Wesley Gordon 600
Where they are owner's state
Kind of aircraft
When the aircraft were built by decade
What the FAA has certified, ordered and been told about the Lycoming IO-720-A1B the component layer
The design is held under 1 type certificate (1E15, held by Textron Lycoming Subsidiary of Textron INC.). The FAA has issued 22 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 50 failure reports with the FAA since 1995, 6 of them in the last ten years.
FAA orders 22 airworthiness directives · newest first
Failure reports 50 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
Certificates and bulletins
Safety bulletins 1 · 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
- Piper PA-24 Comanche 2 with this engine series
- Beechcraft 65 2 with this engine series
- Piper PA-36 Pawnee Brave 1 with this engine series
- Wisconsin 1 of these aircraft
- South Dakota 1 of these aircraft
- Nevada 1 of these aircraft
- New Hampshire 1 of these aircraft
- Mississippi 1 of these aircraft
- FAA orders naming the Lycoming IO-720-A1B 22 airworthiness directives
- Failure reports on the Lycoming IO-720-A1B 50 reports since 1995
These connections as data: /graph/engine/lycoming-io-720-a1b.json · about the eFlight graph.
Aircraft newest certificates first · 8
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N76400 | Piper PA-36-285 |
Fixed-wing, single engine | Horning Air LLC Cresbard, South Dakota |
Restricted | 2024-12-09 | ValidFAA registration status code V: Valid registration. All codes |
| N846LA | Wesley Gordon 600 |
Fixed-wing, single engine | Individual owner New Hampshire |
Experimental | 2024-02-03 | ValidFAA registration status code V: Valid registration. All codes |
| N62AX | Sturgis Robert COMPAIR 7 |
Fixed-wing, single engine | Arrow Air Services LLC Greenleaf, Idaho |
Experimental | 2023-03-16 | ValidFAA registration status code V: Valid registration. All codes |
| N8483P | Piper PA-24-400 |
Fixed-wing, single engine | High Wing Aviation LLC Sardis, Mississippi |
Standard | 2023-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N702JD | Piper PA-24-400 |
Fixed-wing, single engine | Crossbow Aviation LLC Reno, Nevada |
Standard | 2022-11-15 | ValidFAA registration status code V: Valid registration. All codes |
| N800EQ | Beech 65 |
Fixed-wing, multi-engine | Individual owner Wisconsin |
Standard | 2021-10-25 | ValidFAA registration status code V: Valid registration. All codes |
| N41HW | Beech 65 (L23F) |
Fixed-wing, multi-engine | Fresh Air Aviation INC Charlevoix, Michigan |
Standard | 2020-01-08 | ValidFAA registration status code V: Valid registration. All codes |
| N96038 | Macchi AL60-F5 |
Fixed-wing, single engine | Individual owner Colorado |
Standard | 2016-09-21 | 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.