Narrative:

We were dispatched flight with an inoperative APU. While on departure shortly after clean up, a right generator drive light was illuminated with a right generator drive EICAS. The right idg was disconnected as procedure. The decision to return and land at stl immediately was made as we were in IFR conditions with thunderstorms in all quadrants and no APU. I decided to have emergency equipment standing by as we were 16000 pounds over landing weight. A decision to declare an emergency was not made as I felt it was not necessary. The landing was smooth and uneventful. I stopped the aircraft and had the ground crew check the main gear area for hot or smoking brakes. There was none. I taxied to the gate.

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Original NASA ASRS Text

Title: AN ACR FLT CREW RETURN FOR LNDG AFTER THEY LOSE THEIR R GENERATOR WITH THE APU INOP AT STL.

Narrative: WE WERE DISPATCHED FLT WITH AN INOP APU. WHILE ON DEP SHORTLY AFTER CLEAN UP, A R GENERATOR DRIVE LIGHT WAS ILLUMINATED WITH A R GENERATOR DRIVE EICAS. THE R IDG WAS DISCONNECTED AS PROC. THE DECISION TO RETURN AND LAND AT STL IMMEDIATELY WAS MADE AS WE WERE IN IFR CONDITIONS WITH TSTMS IN ALL QUADRANTS AND NO APU. I DECIDED TO HAVE EMER EQUIP STANDING BY AS WE WERE 16000 LBS OVER LNDG WT. A DECISION TO DECLARE AN EMER WAS NOT MADE AS I FELT IT WAS NOT NECESSARY. THE LNDG WAS SMOOTH AND UNEVENTFUL. I STOPPED THE ACFT AND HAD THE GND CREW CHK THE MAIN GEAR AREA FOR HOT OR SMOKING BRAKES. THERE WAS NONE. I TAXIED TO THE GATE.

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.