Airworthiness directives › 2005-09-51
AD 2005-09-51 Airworthiness Directives; Turbomeca Arrius 2F Turboshaft Engines
Applicability*9
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. Table 1.—Engine and Module Serial Numbers 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
Compliance
You are responsible for having the actions required by this AD performed before further flight, unless the actions have already been done. Replacing the Module 2 (f) 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. Alternative Methods of
Unsafe condition
This AD results from failure of a high pressure turbine (HPT) blade and damage to two other HPT blades in a Turbomeca Arrius 2F turboshaft engine on March 31, 2005. We are issuing this AD to prevent failure of the engine and subsequent loss of power.
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