Lycoming TIO-540-C1A
9 aircraft on the U.S. register carry a Lycoming TIO-540-C1A engine, rated at about 250 horsepower. The Piper PA-23 Apache and Aztec is the model most often fitted with it (9 aircraft). The aircraft carrying it were built between 1973 and 1980.
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 TIO-540-C1A. FAA spelling: TIO-540-C1A.
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 TIO-540-C1A the component layer
The design is held under 1 type certificate (E14EA, held by Lycoming Engines). The FAA has issued 34 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 37 failure reports with the FAA since 1995, 3 of them in the last ten years.
FAA orders 34 airworthiness directives · newest first
Failure reports 37 since · what operators and shops told the FAA
Parts most often reported as the reports name them
Latest reports
Certificates and bulletins
Safety bulletins 5 · 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-23 Apache and Aztec 9 with this engine series
- Pacific Fleet Aviation LLC 1 of these aircraft
- FAA orders naming the Lycoming TIO-540-C1A 34 airworthiness directives
- Failure reports on the Lycoming TIO-540-C1A 37 reports since 1995
These connections as data: /graph/engine/lycoming-tio-540-c1a.json · about the eFlight graph.
Aircraft newest certificates first · 9
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N964MM | Piper PA-23-250 |
Fixed-wing, multi-engine | Modular Aviation LLC Saratoga Springs, Utah |
Standard | 2024-05-17 | ValidFAA registration status code V: Valid registration. All codes |
| N78LJ | Piper PA-23-250 (6PCLM) |
Fixed-wing, multi-engine | Valiair Lc Casper, Wyoming |
Standard | 2024-02-28 | ValidFAA registration status code V: Valid registration. All codes |
| N315NY | Piper PA-23-250 |
Fixed-wing, multi-engine | Pacific Fleet Aviation LLC Rochester, New York |
Standard | 2020-12-23 | ValidFAA registration status code V: Valid registration. All codes |
| N77KK | Piper PA-23-250 |
Fixed-wing, multi-engine | Mensch Aviation LLC Hastings, Michigan |
Standard | 2019-11-05 | ValidFAA registration status code V: Valid registration. All codes |
| N51JN | Piper PA-23-250 |
Fixed-wing, multi-engine | Naylor Aviation LLC Scotch Grove, Iowa |
Standard | 2019-08-20 | ValidFAA registration status code V: Valid registration. All codes |
| N40588 | Piper PA-23-250 |
Fixed-wing, multi-engine | Csc Delaware Trust CO Trustee Wilmington, Delaware |
Standard | 2017-10-16 | ValidFAA registration status code V: Valid registration. All codes |
| N89VV | Piper PA-23-250 |
Fixed-wing, multi-engine | Adams Aviation Services INC Trustee Wilmington, Delaware |
Standard | 2014-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N6879A | Piper PA-23-250 |
Fixed-wing, multi-engine | Individual owner Ohio |
Standard | 2013-03-04 | ValidFAA registration status code V: Valid registration. All codes |
| N375AZ | Piper PA-23-250 (6PCLM) |
Fixed-wing, multi-engine | Individual owner | 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.