Airworthiness directives › 2013-11-09
AD 2013-11-09 Airworthiness Directives; Turbomeca S.A. Turboshaft Engines
Applicability*9
This AD applies to all Turbomeca S.A. Arrius 2B1 and 2F turboshaft engines.
Compliance
(1) Replace the fuel injector manifolds and privilege injector with parts eligible for installation before exceeding 200 operating hours, time-since-new (TSN). (2) Borescope-inspect the flame tube and the high-pressure turbine area for turbine distress, when replacing the fuel injection manifolds and privilege injector for the first time. (3) Thereafter, within every 200 operating hours, time-in-service (TIS) since last fuel injector manifolds and privilege injector replacement, or sooner if a power check performed per flight manual EC T135-T1 indicates a negative T45 margin, replace the fuel injector manifolds and the privilege injector with parts eligible for installation.
Required actions
(1) Replace the privilege injector with a privilege injector eligible for installation before exceeding 400 operating hours TSN. (2) Borescope-inspect the flame tube and the high-pressure turbine area for turbine distress, when replacing the privilege injector for the first time. (3) Thereafter, within every 400 operating hours TIS since last privilege injector replacement, replace the privilege injector with parts eligible for installation.
Unsafe condition
Comply with this AD within the compliance times specified, unless already done.
Affected ADs
This AD supersedes AD 2001-08-14R1, Amendment 39 14423 (71 FR 2993, January 19, 2006).
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