Narrative:

Cruising at FL400 at mach .855; when the auto throttles started moving back toward idle. EICAS message showed flaps drive. We completed the flaps drive checklist. Then called dispatch and talked to maintenance about the problem. Declared an emergency and diverted. We did not dump fuel because this would be under the max landing weight. We made a no flap landing.

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Original NASA ASRS Text

Title: B787 Captain; cruising at FL400 notes autothrottles moving back toward idle and an EICAS message stating Flap Drive. Maintenance is consulted and the flight diverts to a suitable airport for a no flap landing.

Narrative: Cruising at FL400 at mach .855; when the auto throttles started moving back toward idle. EICAS message showed Flaps Drive. We completed the Flaps Drive checklist. Then called Dispatch and talked to Maintenance about the problem. Declared an Emergency and Diverted. We did not dump fuel because this would be under the Max Landing Weight. We made a No Flap landing.

Data retrieved from NASA's ASRS site as of July 2013 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.