Narrative:

During pushback, a high workload environment, received message in mcdu scratch pad 'set offside range/mode.' inadvertently assumed independent operation of FMGC's and departed. After takeoff realized that FMGC #1 was inoperative, so we did not comply with MEL. Two low time pilots contributed to error.

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Original NASA ASRS Text

Title: AN A319 CREW ACCEPTS AN ACFT SYS MALFUNCTION DURING PUSHBACK THAT DID NOT COMPLY WITH MEL.

Narrative: DURING PUSHBACK, A HIGH WORKLOAD ENVIRONMENT, RECEIVED MESSAGE IN MCDU SCRATCH PAD 'SET OFFSIDE RANGE/MODE.' INADVERTENTLY ASSUMED INDEPENDENT OP OF FMGC'S AND DEPARTED. AFTER TKOF REALIZED THAT FMGC #1 WAS INOP, SO WE DID NOT COMPLY WITH MEL. TWO LOW TIME PLTS CONTRIBUTED TO ERROR.

Data retrieved from NASA's ASRS site as of July 2007 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.