Document ID: chunk:federal_register_of_legislation:F2007L04512:body:0:p2
Version: federal_register_of_legislation:F2007L04512
Segment Type: other
Provision Reference: 
Character Range: 2765–3600

in service after 20 December 2007, unless already accomplished.
                This Amendment becomes effective on 20 December 2007.

Background:  The FAA received reports of five occurrences of missing tail rotor blade forward tip weight retention blocks or aft tip closures that resulted in minor to substantial damage.  Such damage could result in loss of a tail rotor blade, and subsequent loss of control of the helicopter.

             Amendment 1 is issued in response to a new FAA AD, which expands the applicability to include other part and serial-numbered blades.  Additionally, the AD clarifies the requirement to re-identify the modified blade by adding "FM" after the part number, and requires dynamically balancing the tail rotor.

David Villiers
Delegate of the Civil Aviation Safety Authority

7 November 2007