Narrative:

We were dispatched with an MEL item that said aft cargo door status message may be displayed and under attention flight crew; it said if config door EICAS should appear further operations is prohibited. I aborted the takeoff at about 50 KTS after the EICAS config door and master caution light and horn came on. Returned to the gate and mechanics unable to fix in next 4 hours so flight canceled.

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Original NASA ASRS Text

Title: Air Carrier Captain reports being dispatched with an MEL for the aft cargo door warning system. During takeoff; at 50 KTS; EICAS config door; the master caution light and horn came on; and the takeoff is rejected.

Narrative: We were dispatched with an MEL item that said aft cargo door status message may be displayed and under attention flight crew; it said if config door EICAS should appear further operations is prohibited. I aborted the takeoff at about 50 KTS after the EICAS config door and master caution light and horn came on. Returned to the gate and mechanics unable to fix in next 4 hours so flight canceled.

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.