Document ID: chunk:federal_register_of_legislation:F2009L01000:body:0:p2
Version: federal_register_of_legislation:F2009L01000
Segment Type: other
Provision Reference: 
Character Range: 2748–4569

of the day (ALF check), and not exceeding 10 flight hours between two successive checks.

                2. Remains unchanged as:  No later than 31 March 2009, unless already accomplished.

                3. As of the effective date of this Directive.

             The compliance times remain unchanged by this issue of the Directive.

             This Directive shall be entered on the Maintenance Release as maintenance required.  The required visual inspection may be performed and certified by a Pilot in Command who has been trained to do the inspection by an appropriately qualified person.  In this case, a copy of the Requirement document and this Directive is to be carried in the aircraft.
             This Amendment becomes effective on 9 April 2009.
Background:  The DGAC received a report of separation of a tail rotor blade trailing edge section due to crack growth in the blade skin.  The unbalance caused by the loss of a blade section can cause tail rotor gearbox separation.

             Amendment 1 introduced certain actions to rotors installed on version B3 helicopters that are fitted with a 30mm trailing edge tab.

             Amendment 2 introduced requirements to alleviate maintenance for tail rotor blades repaired as per Repair Sheet (FR) CN 376; as specified in the latest revision of the Requirement document.

             Amendment 3 added a new Repair Sheet FR CN 453, and extended the repair accomplishment timescale accordingly; as specified in the latest revision of the Requirement document.

             Amendment 4 is issued in response to a revision of the related EASA AD, which introduces a correction to the Requirement 1 compliance; with no change to the technical requirements.

David Punshon
Delegate of the Civil Aviation Safety Authority

6 February 2009