Airworthiness Directive · Amendment 39-14099 · Turbomeca Arrius 2F Turboshaft Engines
Turbomeca Arrius 2F Turboshaft Engines
This AD applies to certain Turbomeca Arrius 2F turboshaft engines listed by serial number (SN) in Table 1 of this AD. These engines are installed on, but not limited to, Eurocopter EC 120B Helicopters.
| Engine SN | Module 2 SN |
|---|---|
| 34416 | 01045 |
| 34417 | 01063 |
| 34418 | 01052 |
| 34419 | 01053 |
| 34420 | 01067 |
| 34421 | 01068 |
| 34422 | 01051 |
| 34423 | 01078 |
| 34424 | 01079 |
| 34425 | 01080 |
| 34426 | 01083 |
| 34427 | 01089 |
| 34428 | 01090 |
| 34429 | 01097 |
| 34430 | 01098 |
| 34431 | 01099 |
| 34432 | 01102 |
| 34433 | 01103 |
| 34434 | 01109 |
| 34435 | 01110 |
| 34436 | 01121 |
| 34437 | 01122 |
| 34438 | 01123 |
| 34439 | 01136 |
| 34440 | 01139 |
| 34441 | 01140 |
| 34442 | 01138 |
| 34443 | 01141 |
| 34444 | 01142 |
| 34445 | 01146 |
| 34446 | 01147 |
| 34447 | 01148 |
| 34448 | 01164 |
| 34449 | 01165 |
| 34450 | 01177 |
| Not Installed | 01149 |
| 34033 | 00125 |
| 34177 | 00446 |
This document publishes in the Federal Register an amendment adopting emergency airworthiness directive (AD) 2005-09-51 that we sent previously to all known U.S. owners and operators of certain Turbomeca Arrius 2F turboshaft engines. This AD requires before further flight, replacing the Module 2 on certain engines listed by serial number (SN) in this AD. This AD results from a report of the failure of a high pressure turbine (HPT) blade and damage to two other HPT blades in a Turbomeca Arrius 2F turboshaft engine. We are issuing this AD to prevent failure of the engine and subsequent loss of power.
You are responsible for having the actions required by this AD performed before further flight, unless the actions have already been done.
Before further flight, on Turbomeca Arrius 2F engines that have a SN listed in Table 1 of this AD, remove the Module 2 and replace the Module with a Module 2 that was overhauled or that has a SN not listed in Table 1 of this AD.
The aircraft, engines and makers this AD names, by the model designations in its text. A model listed here may still be outside the AD's serial ranges.
Engines
