Narrative:

During cruise; we suddenly lost both fmcs; autopilots; autothrottles; map displays; and other systems. After a few minutes we were able to restore all systems. During the event; we drifted about 5 NM left of course. We advised dispatch to notify ATC; who stated all was fine. Maintenance was contacted and stated that this aircraft has a history of losing both fmcs. There were no other aircraft in our vicinity.

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Original NASA ASRS Text

Title: Both FMCs quit on a B747-400's oceanic flight but the crew was able to restore them with minimal track deviation.

Narrative: During cruise; we suddenly lost both FMCs; autopilots; autothrottles; map displays; and other systems. After a few minutes we were able to restore all systems. During the event; we drifted about 5 NM left of course. We advised Dispatch to notify ATC; who stated all was fine. Maintenance was contacted and stated that this aircraft has a history of losing both FMCs. There were no other aircraft in our vicinity.

Data retrieved from NASA's ASRS site as of April 2012 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.