Narrative:

Just after level off at 33000, CSD low oil pressure light came on #1 CSD was disconnected and after communicating with dispatch decision was to divert back to sea (departure point). APU was put on MEL the previous night in pit before aircraft was flown to sea. Overweight landing was made in sea (126000 pounds). Sink rate less than 100 ft and landing was very smooth. After #1 CSD fixed, overweight landing inspection completed and #1 main tire changed flight was redispatched and 5 hours late.

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Original NASA ASRS Text

Title: ACR MLG ACFT EXPERIENCED A MAJOR ELECTRICAL EQUIP MALFUNCTION AT HIGH ALT LEVEL OFF AND RETURNED TO DEP ARPT.

Narrative: JUST AFTER LEVEL OFF AT 33000, CSD LOW OIL PRESSURE LIGHT CAME ON #1 CSD WAS DISCONNECTED AND AFTER COMMUNICATING WITH DISPATCH DECISION WAS TO DIVERT BACK TO SEA (DEP POINT). APU WAS PUT ON MEL THE PREVIOUS NIGHT IN PIT BEFORE ACFT WAS FLOWN TO SEA. OVERWT LNDG WAS MADE IN SEA (126000 POUNDS). SINK RATE LESS THAN 100 FT AND LNDG WAS VERY SMOOTH. AFTER #1 CSD FIXED, OVERWT LNDG INSPECTION COMPLETED AND #1 MAIN TIRE CHANGED FLT WAS REDISPATCHED AND 5 HRS LATE.

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.