Document ID: chunk:federal_register_of_legislation:F2008L02102:body:0:p2
Version: federal_register_of_legislation:F2008L02102
Segment Type: other
Provision Reference: 
Character Range: 2775–3763

the FGCS are not displayed on aircraft equipped with EPIC software load 4.3, 4.4, 4.5, 4.6 or 4.7.  Therefore, following a possible failure on one FGCS channel during a given flight, such a failure condition will remain undetected or latent in subsequent flights.  If another failure occurs on the second FGCS channel, the result may be a command hard-over by the autopilot.
             Since this condition may affect the safety of the aeroplane, the original issue of this Directive required the repetitive functional testing of the FGCS until the software load version 19.3 or higher is installed.
             This Amendment continues the repetitive testing of the FGCS and extends the compliance time for Requirement 2 by one year.  The Amendment also clarifies how higher versions of the software load may be installed.
             The original issue of this Directive became effective on 27 March 2008.

James Coyne
Delegate of the Civil Aviation Safety Authority

12 June 2008