Document ID: chunk:federal_register_of_legislation:F2007L03989:body:0:p2
Version: federal_register_of_legislation:F2007L03989
Segment Type: other
Provision Reference: 
Character Range: 4845–6452

2003
                                                                                Later revisions of the above SBs, approved by the United States Federal Aviation Administration (FAA) as an Alternate Method of Compliance (AMOC) to FAA AD 2007-19-03 are considered acceptable for compliance with the equivalent Requirements of this Directive.
                                                                                Note 3:  FAA AD 2007-19-03 Amdt 39-15193 refers.
Compliance:                                                                     For Requirements 1 and 2.a. - Within 20 months after the effective date of this Directive.
                                                                                For Requirement 2.b. - Before or concurrently with the Requirement 2.a. modification.

             This Airworthiness Directive becomes effective on 25 October 2007.
Background:  The United States Federal Aviation Administration (FAA) has advised that they have received reports of failed PCDUs, the loss of an electrical bus, together with the presence of a strong electrical burning odour in the flight deck and forward cabin.
             This Directive requires the inspection of the PCDU to determine its part number and, if necessary, the modification of certain PCDUs.  The Directive is issued to prevent the loss of an electrical bus due to PCDU failure which could result in the loss of all flight displays for an unacceptable time period together with a consequent emergency landing.

Charles Lenarcic
Delegate of the Civil Aviation Safety Authority

14 September 2007