Document ID: chunk:federal_register_of_legislation:F2005L01740:body:0:p3
Version: federal_register_of_legislation:F2005L01740
Segment Type: other
Provision Reference: 
Character Range: 5837–7651

advised that an A320 operator reported the erratic behavior of all EIS2 LCD DUs in cruise for duration of three minutes with a total loss LCD DUs for 30 seconds.  As a precaution the pilot disconnected the autopilot and standby instruments were used.  All DUs were finally recovered and the flight continued normally.

             Analysis confirmed that the three Display Management Computers have received erroneous data from one LCD Unit.

             Airbus issued Operators Information Telex (OIT) and Flight Operations Telex (FOT) SE 999.0114/03/VHR Revision 1, which gives the Master Minimum Equipment List (MMEL) changes resulting from this event and operational recommendations to be followed in case of all DUs failed with INVALID DATA display.
             Several similar events have been reported on the Airbus Single Aisle fleet since the issue of the OIT, showing the need to make sure that the crew is well informed of the procedure to apply in similar situations.  This procedure "Loss of all display units" is detailed in A330 AFM TR 4.02.00/23.  An equivalent procedure detailed in AFM TR 4.02.00/24 and 4.02.00/39 has also been developed for A330 aircraft fitted with FWC STD K7/486 (Hardware - 486).

   This Amendment continues the requirements of the original issue of the Directive.  However, the Amendment provides relief for operators who have incorporated the new EIS2 standard 'L5' together with the associated activation of a monitoring function (CRC) either by way of modification during production or incorporation of service bulletins.  This allows cancellation of the operational limitations (both AFM and MMEL TR).
   The original issue of this Directive became effective on 4 August 2004.

James Coyne
Delegate of the Civil Aviation Safety Authority

24 June 2005