Narrative:

Flight, while en route from bos to fll, experienced an unexpected APU shutdown. Aircraft was dispatched with #2 CSD inoperative on an MEL. Due to only 1 generator operational, an emergency was declared. Flight was diverted to nearest suitable airport which was baltimore. Upon descent to lower altitude, APU was restarted and electrical power re-established. Flight landed baltimore uneventfully. All appropriate checklists and procedures accomplished.

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Original NASA ASRS Text

Title: A B737-200 IN CRUISE AT FL350 DECLARED AN EMER AND DIVERTED DUE TO APU SHUTDOWN. ACFT DISPATCHED WITH #2 CSD DEFERRED INOP.

Narrative: FLT, WHILE ENRTE FROM BOS TO FLL, EXPERIENCED AN UNEXPECTED APU SHUTDOWN. ACFT WAS DISPATCHED WITH #2 CSD INOP ON AN MEL. DUE TO ONLY 1 GENERATOR OPERATIONAL, AN EMER WAS DECLARED. FLT WAS DIVERTED TO NEAREST SUITABLE ARPT WHICH WAS BALTIMORE. UPON DSCNT TO LOWER ALT, APU WAS RESTARTED AND ELECTRICAL PWR RE-ESTABLISHED. FLT LANDED BALTIMORE UNEVENTFULLY. ALL APPROPRIATE CHKLISTS AND PROCS ACCOMPLISHED.

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.