Airworthiness directives › 2013-17-01
AD 2013-17-01 Airworthiness Directives; Eurocopter France Helicopters
Applicability*9
This AD becomes effective October 9, 2013.
Compliance
A one-time flight permit may be granted, provided that the pilot has full yaw authority before flight.
Required actions
(1) The Manager, Safety Management Group, FAA, may approve AMOCs for this AD. Send your proposal to: Matt Fuller, Aviation Safety Engineer, Continued Operational Safety, Rotorcraft Directorate, FAA, 2601 Meacham Blvd., Fort Worth, Texas 76137; telephone 817-222-5110; email matthew.fuller@faa.gov. (2) For operations conducted under a 14 CFR part 119 operating certificate or under 14 CFR part 91, subpart K, we suggest that you notify your principal inspector, or lacking a principal inspector, the manager of the local flight standards district office or certificate holding district office, before operating any aircraft complying with this AD through an AMOC.
Unsafe condition
(1) Within 110 hours time-in-service (TIS), inspect the locking of the stop screws to determine whether the stop screws turn. (i) If any stop screw turns, adjust the stop screw. (ii) Mark a line of red paint on the screw-nut assembly as depicted in Section B-B, Figure 1 of Eurocopter Alert Service Bulletin (ASB) No. AS350-05.00.64 or ASB No. AS355-05.00.59, as applicable to your model helicopter. Both ASBs are Revision 0 and dated August 30, 2011. (2) Thereafter, at intervals not to exceed 110 hours TIS, inspect the stop screws to determine whether the paint lines on the screw and the nut are aligned. If the red paint lines are not aligned, remove the paint, adjust the stop screw, and mark a new line of paint on the screw-nut assembly as depicted in Section B-B, Figure 1 of Eurocopter ASB No. AS350-05.00.64 or ASB No. AS355-05.00.59, as applicable to your model helicopter. Both ASBs are Revision 0 and dated August 30, 2011.
Affected ADs
This AD defines the unsafe condition as a loose nut or misaligned tail rotor control stop screw (stop screw). This condition could result in limited yaw authority and subsequent loss of helicopter control.
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