Turbomeca (Safran) ARRIUS 1A
5 aircraft on the U.S. register carry a Turbomeca (Safran) ARRIUS 1A engine, rated at about 456 horsepower. The Airbus Helicopters AS355 TwinStar is the model most often fitted with it (2 aircraft). The aircraft carrying it were built between 1993 and 2007.
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 Turbomeca (Safran) ARRIUS 1A. FAA spelling: ARRIUS 1A.
Fitted to model families
Model families, as a table
| aircraft | |
|---|---|
| Airbus Helicopters AS355 TwinStar | 2 |
| Aerospatiale AS-355 | 1 |
| Airbus Helicopters EC-135 now H135 | 1 |
| Eurocopter/France AS355N TWINSTAR | 1 |
Airbus Helicopters AS355 TwinStar · Aerospatiale AS-355 · Airbus Helicopters EC-135 now H135 · Eurocopter/France AS355N TWINSTAR
Where they are owner's state
What the FAA has certified, ordered and been told about the Turbomeca (Safran) ARRIUS 1A the component layer
The FAA has issued 4 airworthiness directives (orders that owners must comply with) that name this engine series. Operators and repair shops have filed 25 failure reports with the FAA since 1995, 16 of them in the last ten years.
FAA orders 4 airworthiness directives · newest first
Failure reports 25 since · what operators and shops told the FAA
Failure reports by year, as a table
| reports | |
|---|---|
| 03 | 2 |
| 04 | 6 |
| 05 | 1 |
| 08 | 1 |
| 09 | 1 |
| 10 | 2 |
| 12 | 1 |
| 13 | 2 |
| 14 | 4 |
| 15 | 4 |
| 16 | 1 |
Parts most often reported as the reports name them
Parts most reported, as a table
| reports | |
|---|---|
| Exhaust Pipe | 2 |
| Hinge Pin | 2 |
| Starter Gen | 2 |
| Access Door | 1 |
| Bearing | 1 |
| Cable | 1 |
| Clock | 1 |
| Coupling | 1 |
| Electrical Sys | 1 |
| Engine | 1 |
Latest reports
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
- Airbus Helicopters AS355 TwinStar 2 with this engine series
- Aerospatiale AS-355 1 with this engine series
- Airbus Helicopters EC-135 now H135 1 with this engine series
- New Jersey 1 of these aircraft
- Montana 1 of these aircraft
- Florida 1 of these aircraft
- Delaware 1 of these aircraft
- Colorado 1 of these aircraft
- Mhoc LLC 1 of these aircraft
- Csc Delaware Trust CO Trustee 1 of these aircraft
- Analar CORP 1 of these aircraft
- Air Methods LLC 1 of these aircraft
- FAA orders naming the Turbomeca (Safran) ARRIUS 1A 4 airworthiness directives
- Failure reports on the Turbomeca (Safran) ARRIUS 1A 25 reports since 1995
The whole map of how records connect · these connections as data: /graph/engine/turbomeca-safran-arrius-1a.json.
Aircraft newest certificates first · 5
| Tail no. | Maker and model | Group | Owner and base | Certificate | Registered | Status |
|---|---|---|---|---|---|---|
| N35JP | Eurocopter/France AS355N TWINSTAR |
Rotorcraft | Eleven 11 Ventures LLC Helena, Montana |
Standard | 2025-09-16 | ValidFAA registration status code V: Valid registration. All codes |
| N135LC | Eurocopter Deutschland Gmbh EC135T2 |
Rotorcraft | Air Methods LLC Greenwood Village, Colorado |
Standard | 2022-02-17 | ValidFAA registration status code V: Valid registration. All codes |
| N355AR | Aerospatiale AS355N |
Rotorcraft | Csc Delaware Trust CO Trustee Wilmington, Delaware |
Standard | 2018-09-10 | ValidFAA registration status code V: Valid registration. All codes |
| N167MT | Eurocopter AS 355N |
Rotorcraft | Analar CORP Princeton, New Jersey |
Standard | 2014-03-05 | ValidFAA registration status code V: Valid registration. All codes |
| N550AE | Eurocopter AS355NP |
Rotorcraft | Mhoc LLC Pensacola, Florida |
Standard | 2008-09-09 | 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 13, 2026. Horsepower and thrust are the FAA's figures for the series, not for a particular aircraft.