Document ID: chunk:federal_register_of_legislation:F2014L00462:body:0:p2
Version: federal_register_of_legislation:F2014L00462
Segment Type: other
Provision Reference: 
Character Range: 3456–5436

A310-25A2146                                                                                                                                                                                                                                                                                                                                                                                                                                               A320-25A1299  340-25A4192.
                Note 2:  Direction Générale de l'Aviation Civile of France (DGAC) AD F-2004-132 refers.
Compliance:     The action set out in the Requirement section must be taken before 31 December 2004.
                The effective date of this AD is 5 May 2014.
Background:     DGAC advised that an A330 aircraft made an in-flight turn back due to overheat of a galley water boiler.
                Investigations revealed that some of the Lermer water boilers listed above have a deficiency in the electrical circuit design. In fact, the overheat protector may be installed in serial with the relay control and in case of relay contact sticking, the continuous source of power to the heating element cannot be cut. This situation may lead to the emission of a burning smell together with smoke and possible injury to the aeroplane's occupants.
                In response to this situation, CASA issued AD/ELECT/74 dated 5 August 2004 to require the inspection of applicable water boilers. Water boilers with overheat protection having less than 4 electrical terminals are discarded; those with 4 or more electrical terminals are marked as having been inspected and returned to service.
                CASA issued AD/ELECT/74 Amdt 1 to correct a typographical error in the DGAC AD number referenced in Note 2 of this AD. There are no changes to the technical requirements of the AD and the dates for compliance remain unchanged.

Mike Higgins
Delegate of the Civil Aviation Safety Authority
28 April 2014