Airworthiness Directive · Amendment 39-15375 · Main rotor head
Eurocopter France Model AS-365N2 and N3, SA-365C, C1 and C2, and SA-365N and N1 Helicopters
This AD applies to Model AS-365N2 and N3, SA-365C, C1 and C2, SA-365N and N1 helicopters, certificated in any category.
We are adopting a new airworthiness directive (AD) for Eurocopter Model AS-365N2 and N3, SA-365C, C1 and C2, and SA-365N and N1 helicopters. This AD results from mandatory continuing airworthiness information (MCAI) originated by an aviation authority to identify and correct an unsafe condition on an aviation product. The European Aviation Safety Agency (EASA), the Technical Agent for France, with which we have a bilateral agreement, states in the MCAI:
Inspect the tightening torque of the MRH to main rotor mast assembly attachment bolts in accordance with paragraph 2.B. of Eurocopter Alert Service Bulletin (ASB) No. 62.00.22, applicable to Model AS-365N2 and N3, and SA365N and N1 helicopters, or ASB No. 65.44, applicable to Model SA-365C, C1, and C2 helicopters, both dated April 10, 2006, unless already done:
(1) On or before reaching 300 hours TIS, for helicopters with less than 280 hours time-in-service (TIS); or
(2) Within 20 hours TIS, for helicopters with 280 or more hours TIS.
This AD requires “inspections” rather than “checks” of the tightening torque. It also uses the term “time-in-service” rather than “flying hours”.
The following provisions also apply to this AD:
(1) Alternative Methods of Compliance (AMOCs): The Manager, Safety Management Group, FAA, has the authority to approve AMOCs for this AD, if requested using the procedures found in 14 CFR 39.19. Send information to ATTN: Jim Grigg, Aviation Safety Engineer, FAA, Rotorcraft Directorate, Safety Management Group, Fort Worth, Texas 76193-0111, telephone (817) 222-5126, fax (817) 222-5961.
(2) Airworthy Product: Use only FAA-approved corrective actions. Corrective actions are considered FAA-approved if they are approved by the State of Design Authority (or their delegated agent) if the State of Design has an appropriate bilateral agreement with the United States. You are required to assure the product is airworthy before it is returned to service.
(3) Reporting Requirements: For any reporting requirement in this AD, under the provisions of the Paperwork Reduction Act, the Office of Management and Budget (OMB) has approved the information collection requirements and has assigned OMB Control Number 2120-0056.
