Airworthiness directives › 2021-08-02
AD 2021-08-02 Airworthiness Directives; Safran Helicopter Engines, S.A. (Type Certificate Previously Held by Turbomeca, S.A.) Turboshaft Engines
Applicability*9
This AD applies to all Safran Helicopter Engines, S.A. (Safran) (Type Certificate previously held by Turbomeca, S.A.) Arriel 2D and Arriel 2E model turboshaft engines.
Compliance
Comply with this AD within the compliance times specified, unless already done.
Required actions
(1) Replace each critical part before reaching the in-service life limits specified in paragraph 1.C., “Table of authorized in-service life limits for the ARRIEL 2D,” or “Table of authorized in-service life limits for the ARRIEL 2E,” Chapter 05-10-00 of the Safran ARRIEL Maintenance Manual (MM) for that engine. (2) Before reaching the periodicity specified in paragraph 1., “Tables of Mandatory Maintenance Tasks,” table D., “Scheduled inspection,” Chapter 05-10-00 of the Safran ARRIEL MM for that engine, perform all maintenance tasks specified in table D. (3) When the engine meets the conditions specified in paragraph 1., “Tables of Mandatory Maintenance Tasks,” table E., “Unscheduled inspection,” Chapter 05-10-00 of the Safran ARRIEL MM for that engine, perform the maintenance tasks specified in table E. (4) If, during performance of the maintenance tasks required by paragraph (g)(2) or (3) of this AD, a discrepancy is found, as defined in the applicable airworthiness limitation section (ALS), perform the corrective actions specified in paragraph 1., “Tables of Mandatory Maintenance Tasks,” table D., “Scheduled inspection,” or table E. “Unscheduled inspection,” Chapter 05-10-00 of the Safran ARRIEL MM for the engine. (5) If no compliance time is identified in Chapter 05-10-00 of the Safran ARRIEL MM, perform the corrective action before further flight.
Unsafe condition
This AD was prompted by the manufacturer revising the maintenance and overhaul manuals to introduce new or more restrictive airworthiness limitations and maintenance tasks. The FAA is issuing this AD to prevent failure of the engine. The unsafe condition, if not addressed, could result in uncontained release of a critical part, damage to the engine, and damage to the helicopter.
Affected ADs
None.
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The directive text above is reproduced from the Federal Register, a work of the United States government and in the public domain. The separation into applicability, compliance and required actions is TrackAD's.*1