Document ID: chunk:federal_register_of_legislation:F2007L01592:body:0:p2
Version: federal_register_of_legislation:F2007L01592
Segment Type: other
Provision Reference: 
Character Range: 2650–3577

control system software enables the overspeed protection function to be maintained, including in the occurrence scenario described above.

   The original issue of this Directive required the use of the new version of the software, as introduced by modification TU 244C, to re-establish an acceptable level of overspeed protection.  Additionally, the Directive ensured the compatibility of the two engines installed on the same helicopter.
   This Amendment is issued following the revision of DGAC AD F-2006-029 by the European Aviation Safety Agency (EASA).  The Amendment continues the requirement to upgrade the software, but references an updated Turbomeca service bulletin.  The Amendment also continues the requirement to ensure installed engine compatibility.
   The original issue of this Directive became effective on 13 April 2006.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

25 May 2007