Document ID: chunk:federal_register_of_legislation:F2006L03944:body:0:p2
Version: federal_register_of_legislation:F2006L03944
Segment Type: other
Provision Reference: 
Character Range: 2822–4794

trailing edge of the frequency adapter and if the four holes are not blocked, flights may be resumed.

                   If the lockwire is not in place, before further flight, re-position the bush if it has turned, and fit the lockwire.

                   If one hole or more is/are blocked, before further flight, unblock the hole(s).

                After the effective date of this Directive, no person may install any of the following equipment held as spares and intended for use in hot climatic conditions and/or in tropical and damp atmosphere:

                     -            MRHs fitted with frequency adapters,

                     -            Frequency adapter assemblies,

                     -            Non-drilled frequency adapter bushes,

                on a helicopter as a replacement part, unless it has been modified in accordance with paragraph 2.B.2 or 2.B.4 or 2.B.5 of AS 365 ASB No. 62.00.24 and SA 365 ASB No. 65.45, as applicable.

                Note:  EASA Emergency AD 2006-0362-E refers.
Compliance:        1. Within 110 flight hours after 2 December 2006.

                   2. Within 10 flight hours after application of MOD 0762C39, or within 10 flight hours after 2 December 2006, whichever occurs later, and thereafter at intervals not to exceed 10 flight hours.
                This Airworthiness Directive becomes effective on 2 December 2006.
Background:     The EASA received reports of deterioration and two reports of failure of Starflex star arm ends.  Such deterioration generated high-amplitude vibrations in flight, compelling the pilot to carry out a precautionary landing, in both cases.  A failure of the Starflex star arm end could make it impossible to control the helicopter.

                The deteriorations are due to the strong effect of temperature on the strength of the Starflex star arm end attachment.

David Villiers
Delegate of the Civil Aviation Safety Authority

1 December 2006