Document ID: chunk:federal_register_of_legislation:F2009L00888:body:0:p2
Version: federal_register_of_legislation:F2009L00888
Segment Type: other
Provision Reference: 
Character Range: 2695–4742

dome fairing itself and its attachment screws are removed in accordance with the instructions given in the Note in paragraph 2.B.1.b of ASB
                         No. 05A003 Revision 1; and,

                    * the flight crews are made aware that when flying without the dome fairing, the lateral vibrations of the helicopter significantly increase at speeds between 70 to 120 KIAS.  This may be accomplished by inserting a copy of this Directive into the Normal Procedures section of the Rotorcraft Flight Manual for the duration of the ferry flight.  The lateral vibration phenomenon does not affect flight safety.

             Note:  EASA AD 2009-0024 refers.
Compliance:     1. At intervals of 15 flight hours or 7 days, whichever occurs first; until SB
                No. 62-007 is accomplished.

                2. Before further flight.

                3. From the effective date of this directive.

                4. Before further flight, unless already accomplished.
             This Amendment becomes effective on 9 April 2009.
Background:  This Directive was issued following reports of cracks and failure of the main rotor hub coning stop support lugs at their attachment points on the reinforcement ring where the dome fairing is secured.  Some further cracks have been reported affecting the dome fairing support assemblies, in particular, but not confined to, those modified to SB No. 62-005.  This Directive requires inspections of the dome fairing support lugs and the removal from service of parts installed during modification in accordance with SB No. 62-005.

             Amendment 1 is issued in response to a new EASA AD, which adds the requirement, in case of crack findings, to install the new main rotor hub coning stop support and dome fairing support.  Relevant replacement of parts in accordance with SB No.
             62-007 constitutes terminating action for the repetitive checks required by this Directive.

David Villiers
Delegate of the Civil Aviation Safety Authority

25 February 2009