Document ID: chunk:federal_register_of_legislation:F2008L00180:body:0:p2
Version: federal_register_of_legislation:F2008L00180
Segment Type: other
Provision Reference: 
Character Range: 2763–3497

panel of a Boeing Model 777 led to testing of other time delay relays at Boeing and at the supplier.  Similar relays are also used in the cargo fire suppression system controlling when the secondary fire bottles discharge.
             This Directive is issued to ensure there is sufficient fire suppressant to control a cargo fire if the aeroplane is more than the relay delay time from a suitable airport, which could result in an uncontrollable fire in the cargo compartment.  The Directive requires an inspection to determine the date code of the time delay relay for the cargo fire suppression system and, if necessary, replacing of the relay.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

10 December 2007